removed C++03 dependency from test

made C++ 11 the default
corrected inclusion of <optional>
2026-07-22 13:43:39 +00:00 · 2023-11-12 21:05:11 -08:00 · 2023-11-02 20:23:32 -07:00 · 2023-11-02 20:17:08 -07:00 · 2023-11-01 14:17:27 -07:00 · 2023-11-01 14:16:26 -07:00
713 changed files with 40830 additions and 105866 deletions
@@ -0,0 +1,28 @@
+# Use, modification, and distribution are
+# subject to the Boost Software License, Version 1.0. (See accompanying
+# file LICENSE.txt)
+#
+# Copyright Rene Rivera 2020.
+
+# For Drone CI we use the Starlark scripting language to reduce duplication.
+# As the yaml syntax for Drone CI is rather limited.
+#
+#
+globalenv={}
+linuxglobalimage="cppalliance/droneubuntu1604:1"
+windowsglobalimage="cppalliance/dronevs2019"
+
+def main(ctx):
+  return [
+  linux_cxx("TOOLSET=gcc LINK=static,shared Job 0", "g++", packages="", buildtype="boost", buildscript="drone", image=linuxglobalimage, environment={'TOOLSET': 'gcc', 'LINK': 'static,shared', 'TRAVIS_COMPILER': 'g++', 'DRONE_JOB_UUID': 'b6589fc6ab'}, globalenv=globalenv),
+  linux_cxx("TOOLSET=gcc LINK=static,shared Job 1", "g++", packages="g++-5", buildtype="boost", buildscript="drone", image=linuxglobalimage, environment={'TOOLSET': 'gcc', 'LINK': 'static,shared', 'TRAVIS_COMPILER': 'g++-5', 'DRONE_JOB_UUID': '356a192b79'}, globalenv=globalenv),
+  linux_cxx("TOOLSET=gcc LINK=static,shared Job 2", "g++", packages="g++-6", buildtype="boost", buildscript="drone", image=linuxglobalimage, environment={'TOOLSET': 'gcc', 'LINK': 'static,shared', 'TRAVIS_COMPILER': 'g++-6', 'DRONE_JOB_UUID': 'da4b9237ba'}, globalenv=globalenv),
+  linux_cxx("TOOLSET=gcc LINK=static,shared Job 3", "g++", packages="g++-7", buildtype="boost", buildscript="drone", image=linuxglobalimage, environment={'TOOLSET': 'gcc', 'LINK': 'static,shared', 'TRAVIS_COMPILER': 'g++-7', 'DRONE_JOB_UUID': '77de68daec'}, globalenv=globalenv),
+  linux_cxx("TOOLSET=clang LINK=static,shared Job 4", "clang++", packages="", buildtype="boost", buildscript="drone", image=linuxglobalimage, environment={'TOOLSET': 'clang', 'LINK': 'static,shared', 'TRAVIS_COMPILER': 'clang++', 'DRONE_JOB_UUID': '1b64538924'}, globalenv=globalenv),
+  linux_cxx("TOOLSET=clang LINK=static,shared Job 5", "clang++", packages="libc++-dev", buildtype="boost", buildscript="drone", image=linuxglobalimage, environment={'TOOLSET': 'clang', 'LINK': 'static,shared', 'TRAVIS_COMPILER': 'clang++-libc++', 'DRONE_JOB_UUID': 'ac3478d69a'}, globalenv=globalenv),
+  osx_cxx("TOOLSET=clang LINK=static,shared Job 6", "clang++", packages="", buildtype="boost", buildscript="drone", environment={'TOOLSET': 'clang', 'LINK': 'static,shared', 'TRAVIS_COMPILER': 'clang++', 'DRONE_JOB_UUID': 'c1dfd96eea'}, globalenv=globalenv),
+  osx_cxx("TOOLSET=clang LINK=static,shared Job 7", "clang++", packages="", buildtype="boost", buildscript="drone", xcode_version="10", environment={'TOOLSET': 'clang', 'LINK': 'static,shared', 'TRAVIS_COMPILER': 'clang++', 'DRONE_JOB_UUID': '902ba3cda1'}, globalenv=globalenv),
+    ]
+
+# from https://github.com/boostorg/boost-ci
+load("@boost_ci//ci/drone/:functions.star", "linux_cxx","windows_cxx","osx_cxx","freebsd_cxx")
@@ -0,0 +1,37 @@
+#!/bin/bash
+
+# Copyright 2020 Rene Rivera, Sam Darwin
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE.txt or copy at http://boost.org/LICENSE_1_0.txt)
+
+set -e
+export TRAVIS_BUILD_DIR=$(pwd)
+export DRONE_BUILD_DIR=$(pwd)
+export TRAVIS_BRANCH=$DRONE_BRANCH
+export VCS_COMMIT_ID=$DRONE_COMMIT
+export GIT_COMMIT=$DRONE_COMMIT
+export REPO_NAME=$DRONE_REPO
+export PATH=~/.local/bin:/usr/local/bin:$PATH
+
+if [ "$DRONE_JOB_BUILDTYPE" == "boost" ]; then
+
+echo '==================================> INSTALL'
+
+BOOST_BRANCH=develop && [ "$TRAVIS_BRANCH" == "master" ] && BOOST_BRANCH=master || true
+cd ..
+git clone -b $BOOST_BRANCH https://github.com/boostorg/boost.git boost-root
+cd boost-root
+git submodule update --init tools/build
+git submodule update --init libs/config
+git submodule update --init tools/boostdep
+cp -r $TRAVIS_BUILD_DIR/* libs/serialization
+python tools/boostdep/depinst/depinst.py serialization
+./bootstrap.sh
+./b2 headers
+
+echo '==================================> SCRIPT'
+
+echo "using $TOOLSET : : $TRAVIS_COMPILER ;" > ~/user-config.jam
+./b2 -j 3 libs/serialization/test toolset=$TOOLSET link=${LINK:-shared}
+
+fi
@@ -0,0 +1,469 @@
+# Copyright 2020-2021 Peter Dimov
+# Copyright 2021 Andrey Semashev
+# Copyright 2021 Alexander Grund
+# Copyright 2022 James E. King III
+# Copyright 2023 Matt Borland
+#
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
+
+name: POSIX
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+      - develop
+      - feature/**
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  LIBRARY: serialization
+  UBSAN_OPTIONS: print_stacktrace=1
+  GIT_FETCH_JOBS: 8
+  NET_RETRY_COUNT: 5
+  DEFAULT_BUILD_VARIANT: release
+
+jobs:
+  CI:
+    defaults:
+      run:
+        shell: bash
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - toolset: gcc-4.8
+            cxxstd: "11"
+            address_model: 64
+            os: ubuntu-latest
+            container: ubuntu:16.04
+            install:
+              - g++-4.8
+            sources:
+              - "ppa:ubuntu-toolchain-r/test"
+          - toolset: gcc-4.9
+            cxxstd: "11"
+            address_model: 64
+            os: ubuntu-latest
+            container: ubuntu:16.04
+            install:
+              - g++-4.9
+            sources:
+              - "ppa:ubuntu-toolchain-r/test"
+          - toolset: gcc-5
+            cxxstd: "11,14,1z"
+            address_model: 64
+            os: ubuntu-latest
+            container: ubuntu:16.04
+            install:
+              - g++-5-multilib
+          - toolset: gcc-5
+            cxxstd: "11-gnu,14-gnu,1z-gnu"
+            address_model: 64
+            os: ubuntu-latest
+            container: ubuntu:16.04
+            install:
+              - g++-5-multilib
+          - toolset: gcc-6
+            cxxstd: "11,14,1z"
+            address_model: 64
+            os: ubuntu-latest
+            container: ubuntu:18.04
+            install:
+              - g++-6-multilib
+          - toolset: gcc-7
+            cxxstd: "11,14,17"
+            address_model: 64
+            os: ubuntu-latest
+            container: ubuntu:18.04
+            install:
+              - g++-7-multilib
+          - toolset: gcc-8
+            cxxstd: "11,14,17,2a"
+            address_model: 64
+            os: ubuntu-latest
+            container: ubuntu:18.04
+            install:
+              - g++-8-multilib
+          - toolset: gcc-9
+            cxxstd: "11,14,17,2a"
+            address_model: 64
+            os: ubuntu-20.04
+            install:
+              - g++-9-multilib
+          - toolset: gcc-9
+            cxxstd: "11-gnu,14-gnu,17-gnu,2a-gnu"
+            address_model: 64
+            os: ubuntu-20.04
+            install:
+              - g++-9-multilib
+          - toolset: gcc-10
+            cxxstd: "11,14,17,20"
+            address_model: 64
+            os: ubuntu-20.04
+            install:
+              - g++-10-multilib
+          - toolset: gcc-11
+            cxxstd: "11,14,17,20,23"
+            address_model: 64
+            os: ubuntu-22.04
+            install:
+              - g++-11-multilib
+          - toolset: gcc-12
+            cxxstd: "11,14,17,20,23"
+            address_model: 64
+            os: ubuntu-22.04
+            install:
+              - g++-12-multilib
+          - toolset: gcc-12
+            cxxstd: "11-gnu,14-gnu,17-gnu,20-gnu,23-gnu"
+            address_model: 64
+            os: ubuntu-22.04
+            install:
+              - g++-12-multilib
+          - name: UBSAN
+            toolset: gcc-12
+            cxxstd: "11,20"
+            address_model: 64
+            ubsan: 1
+            os: ubuntu-22.04
+            install:
+              - g++-12-multilib
+
+          # Linux, clang
+          - toolset: clang
+            compiler: clang++-3.7
+            cxxstd: "11,14"
+            os: ubuntu-latest
+            container: ubuntu:16.04
+            install:
+              - clang-3.7
+          - toolset: clang
+            compiler: clang++-3.8
+            cxxstd: "11,14"
+            os: ubuntu-latest
+            container: ubuntu:16.04
+            install:
+              - clang-3.8
+          - toolset: clang
+            compiler: clang++-3.9
+            cxxstd: "11,14"
+            os: ubuntu-latest
+            container: ubuntu:18.04
+            install:
+              - clang-3.9
+          - toolset: clang
+            compiler: clang++-4.0
+            cxxstd: "11,14"
+            os: ubuntu-latest
+            container: ubuntu:18.04
+            install:
+              - clang-4.0
+          - toolset: clang
+            compiler: clang++-5.0
+            cxxstd: "11,14,1z"
+            os: ubuntu-latest
+            container: ubuntu:18.04
+            install:
+              - clang-5.0
+          - toolset: clang
+            compiler: clang++-6.0
+            cxxstd: "11,14,17"
+            os: ubuntu-latest
+            container: ubuntu:18.04
+            install:
+              - clang-6.0
+          - toolset: clang
+            compiler: clang++-7
+            cxxstd: "11,14,17"
+            os: ubuntu-latest
+            container: ubuntu:18.04
+            install:
+              - clang-7
+          # Note: clang-8 does not fully support C++20, so it is not compatible with libstdc++-8 in this mode
+          - toolset: clang
+            compiler: clang++-8
+            cxxstd: "11,14,17,2a"
+            os: ubuntu-latest
+            container: ubuntu:18.04
+            install:
+              - clang-8
+              - g++-7
+            gcc_toolchain: 7
+          - toolset: clang
+            compiler: clang++-9
+            cxxstd: "11,14,17,2a"
+            os: ubuntu-20.04
+            install:
+              - clang-9
+          - toolset: clang
+            compiler: clang++-10
+            cxxstd: "11,14,17,20"
+            os: ubuntu-20.04
+            install:
+              - clang-10
+          - toolset: clang
+            compiler: clang++-11
+            cxxstd: "11,14,17,20"
+            os: ubuntu-22.04
+            install:
+              - clang-11
+          - toolset: clang
+            compiler: clang++-12
+            cxxstd: "11,14,17,20,2b"
+            os: ubuntu-22.04
+            install:
+              - clang-12
+          - toolset: clang
+            compiler: clang++-13
+            cxxstd: "11,14,17,20,2b"
+            os: ubuntu-22.04
+            install:
+              - clang-13
+          - toolset: clang
+            compiler: clang++-14
+            cxxstd: "11,14,17,20,2b"
+            os: ubuntu-22.04
+            install:
+              - clang-14
+          - toolset: clang
+            compiler: clang++-14
+            cxxstd: "11-gnu,14-gnu,17-gnu,20-gnu,2b-gnu"
+            os: ubuntu-22.04
+            install:
+              - clang-14
+          - toolset: clang
+            compiler: clang++-15
+            cxxstd: "11,14,17,20,2b"
+            os: ubuntu-22.04
+            install:
+              - clang-15
+            sources:
+              - "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-15 main"
+            source_keys:
+              - "https://apt.llvm.org/llvm-snapshot.gpg.key"
+          - toolset: clang
+            compiler: clang++-15
+            cxxstd: "11,14,17,20,2b"
+            os: ubuntu-22.04
+            install:
+              - clang-15
+              - libc++-15-dev
+              - libc++abi-15-dev
+            sources:
+              - "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-15 main"
+            source_keys:
+              - "https://apt.llvm.org/llvm-snapshot.gpg.key"
+            cxxflags: -stdlib=libc++
+            linkflags: -stdlib=libc++
+
+          - toolset: clang
+            cxxstd: "11,14,17,2a"
+            os: macos-11
+          - toolset: clang
+            cxxstd: "11,14,17,20,2b"
+            os: macos-12
+
+    timeout-minutes: 360
+    runs-on: ${{matrix.os}}
+    container: ${{matrix.container}}
+
+    steps:
+      - name: Setup environment
+        run: |
+            if [ -f "/etc/debian_version" ]
+            then
+                echo "DEBIAN_FRONTEND=noninteractive" >> $GITHUB_ENV
+                export DEBIAN_FRONTEND=noninteractive
+            fi
+            if [ -n "${{matrix.container}}" ]
+            then
+                echo "GHA_CONTAINER=${{matrix.container}}" >> $GITHUB_ENV
+                if [ -f "/etc/debian_version" ]
+                then
+                    apt-get -o Acquire::Retries=$NET_RETRY_COUNT update
+                    if [ "$(apt-cache search "^python-is-python3$" | wc -l)" -ne 0 ]
+                    then
+                        PYTHON_PACKAGE="python-is-python3"
+                    else
+                        PYTHON_PACKAGE="python"
+                    fi
+                    apt-get -o Acquire::Retries=$NET_RETRY_COUNT install -y sudo software-properties-common tzdata wget curl apt-transport-https ca-certificates make build-essential g++ $PYTHON_PACKAGE python3 perl git cmake
+                fi
+            fi
+            git config --global pack.threads 0
+      - uses: actions/checkout@v3
+
+      - name: Install packages
+        if: matrix.install
+        run: |
+            declare -a SOURCE_KEYS SOURCES
+            if [ -n "${{join(matrix.source_keys, ' ')}}" ]
+            then
+                SOURCE_KEYS=("${{join(matrix.source_keys, '" "')}}")
+            fi
+            if [ -n "${{join(matrix.sources, ' ')}}" ]
+            then
+                SOURCES=("${{join(matrix.sources, '" "')}}")
+            fi
+            for key in "${SOURCE_KEYS[@]}"
+            do
+                for i in {1..$NET_RETRY_COUNT}
+                do
+                    echo "Adding key: $key"
+                    wget -O - "$key" | sudo apt-key add - && break || sleep 2
+                done
+            done
+            if [ ${#SOURCES[@]} -gt 0 ]
+            then
+                APT_ADD_REPO_COMMON_ARGS=("-y")
+                APT_ADD_REPO_SUPPORTED_ARGS="$(apt-add-repository --help | perl -ne 'if (/^\s*-n/) { print "n"; } elsif (/^\s*-P/) { print "P"; } elsif (/^\s*-S/) { print "S"; } elsif (/^\s*-U/) { print "U"; }')"
+                if [ -n "$APT_ADD_REPO_SUPPORTED_ARGS" -a -z "${APT_ADD_REPO_SUPPORTED_ARGS##*n*}" ]
+                then
+                    APT_ADD_REPO_COMMON_ARGS+=("-n")
+                fi
+                APT_ADD_REPO_HAS_SOURCE_ARGS="$([ -n "$APT_ADD_REPO_SUPPORTED_ARGS" -a -z "${APT_ADD_REPO_SUPPORTED_ARGS##*P*}" -a -z "${APT_ADD_REPO_SUPPORTED_ARGS##*S*}" -a -z "${APT_ADD_REPO_SUPPORTED_ARGS##*U*}" ] && echo 1 || echo 0)"
+                for source in "${SOURCES[@]}"
+                do
+                    for i in {1..$NET_RETRY_COUNT}
+                    do
+                        APT_ADD_REPO_ARGS=("${APT_ADD_REPO_COMMON_ARGS[@]}")
+                        if [ $APT_ADD_REPO_HAS_SOURCE_ARGS -ne 0 ]
+                        then
+                            case "$source" in
+                            "ppa:"*)
+                                APT_ADD_REPO_ARGS+=("-P")
+                                ;;
+                            "deb "*)
+                                APT_ADD_REPO_ARGS+=("-S")
+                                ;;
+                            *)
+                                APT_ADD_REPO_ARGS+=("-U")
+                                ;;
+                            esac
+                        fi
+                        APT_ADD_REPO_ARGS+=("$source")
+                        echo "apt-add-repository ${APT_ADD_REPO_ARGS[@]}"
+                        sudo -E apt-add-repository "${APT_ADD_REPO_ARGS[@]}" && break || sleep 2
+                    done
+                done
+            fi
+            sudo apt-get -o Acquire::Retries=$NET_RETRY_COUNT update
+            sudo apt-get -o Acquire::Retries=$NET_RETRY_COUNT install -y ${{join(matrix.install, ' ')}}
+      - name: Setup GCC Toolchain
+        if: matrix.gcc_toolchain
+        run: |
+            GCC_TOOLCHAIN_ROOT="$HOME/gcc-toolchain"
+            echo "GCC_TOOLCHAIN_ROOT=\"$GCC_TOOLCHAIN_ROOT\"" >> $GITHUB_ENV
+            MULTIARCH_TRIPLET="$(dpkg-architecture -qDEB_HOST_MULTIARCH)"
+            mkdir -p "$GCC_TOOLCHAIN_ROOT"
+            ln -s /usr/include "$GCC_TOOLCHAIN_ROOT/include"
+            ln -s /usr/bin "$GCC_TOOLCHAIN_ROOT/bin"
+            mkdir -p "$GCC_TOOLCHAIN_ROOT/lib/gcc/$MULTIARCH_TRIPLET"
+            ln -s "/usr/lib/gcc/$MULTIARCH_TRIPLET/${{matrix.gcc_toolchain}}" "$GCC_TOOLCHAIN_ROOT/lib/gcc/$MULTIARCH_TRIPLET/${{matrix.gcc_toolchain}}"
+      - name: Setup Boost
+        run: |
+            echo GITHUB_REPOSITORY: $GITHUB_REPOSITORY
+            LIBRARY=${GITHUB_REPOSITORY#*/}
+            echo LIBRARY: $LIBRARY
+            echo "LIBRARY=$LIBRARY" >> $GITHUB_ENV
+            echo GITHUB_BASE_REF: $GITHUB_BASE_REF
+            echo GITHUB_REF: $GITHUB_REF
+            REF=${GITHUB_BASE_REF:-$GITHUB_REF}
+            REF=${REF#refs/heads/}
+            echo REF: $REF
+            BOOST_BRANCH=develop && [ "$REF" = "master" ] && BOOST_BRANCH=master || true
+            echo BOOST_BRANCH: $BOOST_BRANCH
+            BUILD_JOBS=$((nproc || sysctl -n hw.ncpu) 2> /dev/null)
+            echo "BUILD_JOBS=$BUILD_JOBS" >> $GITHUB_ENV
+            echo "CMAKE_BUILD_PARALLEL_LEVEL=$BUILD_JOBS" >> $GITHUB_ENV
+            DEPINST_ARGS=()
+            GIT_VERSION="$(git --version | sed -e 's/git version //')"
+            GIT_HAS_JOBS=1
+            if [ -f "/etc/debian_version" ]
+            then
+                if $(dpkg --compare-versions "$GIT_VERSION" lt 2.8.0)
+                then
+                    GIT_HAS_JOBS=0
+                fi
+            else
+                declare -a GIT_VER=(${GIT_VERSION//./ })
+                declare -a GIT_MIN_VER=(2 8 0)
+                for ((i=0; i<${#GIT_VER[@]}; i++))
+                do
+                    if [ -z "${GIT_MIN_VER[i]}" ]
+                    then
+                        GIT_MIN_VER[i]=0
+                    fi
+                    if [ "${GIT_VER[i]}" -lt "${GIT_MIN_VER[i]}" ]
+                    then
+                        GIT_HAS_JOBS=0
+                        break
+                    fi
+                done
+            fi
+            if [ "$GIT_HAS_JOBS" -ne 0 ]
+            then
+                DEPINST_ARGS+=("--git_args" "--jobs $GIT_FETCH_JOBS")
+            fi
+            cd ..
+            git clone -b "$BOOST_BRANCH" --depth 1 "https://github.com/boostorg/boost.git" "boost-root"
+            cd boost-root
+            mkdir -p libs/$LIBRARY
+            cp -r $GITHUB_WORKSPACE/* libs/$LIBRARY
+            git submodule update --init tools/boostdep
+            DEPINST_ARGS+=("$LIBRARY")
+            python tools/boostdep/depinst/depinst.py "${DEPINST_ARGS[@]}"
+            if [ -z "${{matrix.cmake_tests}}" ]
+            then
+                ./bootstrap.sh
+                ./b2 headers
+                if [ -n "${{matrix.compiler}}" -o -n "$GCC_TOOLCHAIN_ROOT" ]
+                then
+                    echo -n "using ${{matrix.toolset}} : : ${{matrix.compiler}}" > ~/user-config.jam
+                    if [ -n "$GCC_TOOLCHAIN_ROOT" ]
+                    then
+                        echo -n " : <compileflags>\"--gcc-toolchain=$GCC_TOOLCHAIN_ROOT\" <linkflags>\"--gcc-toolchain=$GCC_TOOLCHAIN_ROOT\"" >> ~/user-config.jam
+                    fi
+                    echo " ;" >> ~/user-config.jam
+                fi
+            fi
+      - name: Run tests
+        if: matrix.cmake_tests == ''
+        run: |
+            cd ../boost-root
+            B2_ARGS=("-j" "$BUILD_JOBS" "toolset=${{matrix.toolset}}" "cxxstd=${{matrix.cxxstd}}" "link=static,shared")
+            if [ -n "${{matrix.build_variant}}" ]
+            then
+                B2_ARGS+=("variant=${{matrix.build_variant}}")
+            else
+                B2_ARGS+=("variant=$DEFAULT_BUILD_VARIANT")
+            fi
+            if [ -n "${{matrix.threading}}" ]
+            then
+                B2_ARGS+=("threading=${{matrix.threading}}")
+            fi
+            if [ -n "${{matrix.ubsan}}" ]
+            then
+                export UBSAN_OPTIONS="print_stacktrace=1"
+                B2_ARGS+=("cxxflags=-fsanitize=undefined -fno-sanitize-recover=undefined" "linkflags=-fsanitize=undefined -fuse-ld=gold" "define=UBSAN=1" "debug-symbols=on" "visibility=global")
+            fi
+            if [ -n "${{matrix.cxxflags}}" ]
+            then
+                B2_ARGS+=("cxxflags=${{matrix.cxxflags}}")
+            fi
+            if [ -n "${{matrix.linkflags}}" ]
+            then
+                B2_ARGS+=("linkflags=${{matrix.linkflags}}")
+            fi
+            if [ -n "${{matrix.address_model}}" ]
+            then
+                B2_ARGS+=("address-model=${{matrix.address_model}}")
+            fi
+            B2_ARGS+=("libs/$LIBRARY/test")
+            ./b2 "${B2_ARGS[@]}"
@@ -0,0 +1,76 @@
+name: Windows
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+      - develop
+      - feature/**
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  LIBRARY: serialization
+
+jobs:
+  CI:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - toolset: msvc-14.0
+            cxxstd: "11,14"
+            addrmd: 32,64
+            os: windows-2019
+          - toolset: msvc-14.2
+            cxxstd: "14,17,latest"
+            addrmd: 32,64
+            os: windows-2019
+          - toolset: msvc-14.3
+            cxxstd: "17,20,latest"
+            addrmd: 32,64
+            os: windows-2022
+          - toolset: clang-win
+            cxxstd: "14,17,latest"
+            addrmd: 32,64
+            os: windows-2022
+          - toolset: gcc
+            cxxstd: "11,14,17,2a"
+            addrmd: 64
+            os: windows-2019
+
+    runs-on: ${{matrix.os}}
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup Boost
+        shell: cmd
+        run: |
+          echo GITHUB_REPOSITORY: %GITHUB_REPOSITORY%
+          for /f %%i in ("%GITHUB_REPOSITORY%") do set LIBRARY=%%~nxi
+          echo LIBRARY: %LIBRARY%
+          echo LIBRARY=%LIBRARY%>>%GITHUB_ENV%
+          echo GITHUB_BASE_REF: %GITHUB_BASE_REF%
+          echo GITHUB_REF: %GITHUB_REF%
+          if "%GITHUB_BASE_REF%" == "" set GITHUB_BASE_REF=%GITHUB_REF%
+          set BOOST_BRANCH=develop
+          for /f %%i in ("%GITHUB_BASE_REF%") do if "%%~nxi" == "master" set BOOST_BRANCH=master
+          echo BOOST_BRANCH: %BOOST_BRANCH%
+          cd ..
+          git clone -b %BOOST_BRANCH% --depth 1 https://github.com/boostorg/boost.git boost-root
+          cd boost-root
+          xcopy /s /e /q %GITHUB_WORKSPACE% libs\%LIBRARY%\
+          git submodule update --init tools/boostdep
+          python tools/boostdep/depinst/depinst.py --git_args "--jobs 3" %LIBRARY%
+          cmd /c bootstrap
+          b2 -d0 headers
+
+      - name: Run tests
+        shell: cmd
+        run: |
+          cd ../boost-root
+          b2 -j3 libs/%LIBRARY%/test toolset=${{matrix.toolset}} cxxstd=${{matrix.cxxstd}} address-model=${{matrix.addrmd}} variant=release
@@ -0,0 +1,103 @@
+# Copyright 2016, 2017 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
+
+language: cpp
+
+sudo: false
+
+cache:
+  ccache: true
+
+branches:
+  only:
+    - master
+    - develop
+    - /feature\/.*/
+
+env:
+  matrix:
+    - BOGUS_JOB=true
+
+matrix:
+
+  exclude:
+    - env: BOGUS_JOB=true
+
+  include:
+    - os: linux
+      compiler: g++
+      env: TOOLSET=gcc LINK=static,shared
+
+    - os: linux
+      compiler: g++-5
+      env: TOOLSET=gcc LINK=static,shared
+      addons:
+        apt:
+          packages:
+            - g++-5
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-6
+      env: TOOLSET=gcc LINK=static,shared
+      addons:
+        apt:
+          packages:
+            - g++-6
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-7
+      env: TOOLSET=gcc LINK=static,shared
+      addons:
+        apt:
+          packages:
+            - g++-7
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: clang++
+      env: TOOLSET=clang LINK=static,shared
+
+    - os: linux
+      compiler: clang++-libc++
+      env: TOOLSET=clang LINK=static,shared
+      addons:
+        apt:
+          packages:
+            - libc++-dev
+
+    - os: osx
+      compiler: clang++
+      env: TOOLSET=clang LINK=static,shared
+
+    - os: osx
+      osx_image: xcode10
+      compiler: clang++
+      env: TOOLSET=clang LINK=static,shared
+
+install:
+  - BOOST_BRANCH=develop && [ "$TRAVIS_BRANCH" == "master" ] && BOOST_BRANCH=master || true
+  - cd ..
+  - git clone -b $BOOST_BRANCH https://github.com/boostorg/boost.git boost-root
+  - cd boost-root
+  - git submodule update --init tools/build
+  - git submodule update --init libs/config
+  - git submodule update --init tools/boostdep
+  - cp -r $TRAVIS_BUILD_DIR/* libs/serialization
+  - python tools/boostdep/depinst/depinst.py serialization
+  - ./bootstrap.sh
+  - ./b2 headers
+
+script:
+  - |-
+    echo "using $TOOLSET : : $TRAVIS_COMPILER ;" > ~/user-config.jam
+  - ./b2 -j 3 libs/serialization/test toolset=$TOOLSET link=${LINK:-shared}
+
+notifications:
+  email:
+    on_success: always
@@ -0,0 +1,413 @@
+# CMake build control file for Serialization Library tests
+
+cmake_minimum_required(VERSION 3.5)
+
+if (POLICY CMP0054)
+  cmake_policy (SET CMP0054 NEW)
+endif (POLICY CMP0054)
+
+if (POLICY CMP0063)
+  cmake_policy (SET CMP0063 NEW)
+endif (POLICY CMP0063)
+
+project("serialization")
+
+#
+# Compiler settings
+#
+
+message(STATUS "C++ compiler is ${CMAKE_CXX_COMPILER_ID}" )
+add_definitions(${Boost_LIB_DIAGNOSTIC_DEFINITIONS})
+message(STATUS "C compiler is ${CMAKE_C_COMPILER_ID}" )
+
+if( CMAKE_CXX_COMPILER_ID STREQUAL "GNU" )
+  add_definitions( -ftemplate-depth=255 )
+  # we use gcc to test for C++03 compatibility
+  set(COMPILER_SUPPORTS_CXX11 FALSE)
+elseif( CMAKE_CXX_COMPILER_ID STREQUAL "MSVC" )
+  add_definitions( /wd4996 )
+  set(COMPILER_SUPPORTS_CXX11 TRUE)
+elseif( CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang" )
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ftemplate-depth=300")
+  set(CMAKE_CXX_FLAGS_DEBUG "-g -O0" )
+  set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-g -O3" )
+  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -stdlib=libc++ -dead_strip")
+  set(COMPILER_SUPPORTS_CXX11 TRUE)
+endif()
+
+add_definitions( -std=c++11 )
+#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++03")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
+#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+
+#
+# Locate Project Prerequisites 
+#
+
+# Boost
+
+#
+# Project settings
+#
+option(BUILD_SHARED_LIBS "Build Shared Libraries" true)
+
+find_package(Boost 1.82 REQUIRED COMPONENTS system filesystem)
+
+if(NOT Boost_FOUND)
+  message("Boost NOT Found!")
+else()
+  message(STATUS "Boost Found!")
+endif()
+set(CMAKE_CXX_VISIBILITY_PRESET hidden)
+set(VISIBILITY_INLINES_HIDDEN YES)
+
+# enable usage of CHECK_INCLUDE_FILE_CXX
+include(CheckIncludeFileCXX)
+
+# list of archive names for which tests should be generated
+set(archive_list text_archive text_warchive binary_archive xml_archive xml_warchive)
+# set(archive_list xml_warchive)
+
+# list of tests generated by each function call
+set(test_list)
+
+###########################
+# library builds
+
+add_library(serialization
+  ../src/archive_exception.cpp
+  ../src/basic_archive.cpp
+  ../src/basic_iarchive.cpp
+  ../src/basic_iserializer.cpp
+  ../src/basic_oarchive.cpp
+  ../src/basic_oserializer.cpp
+  ../src/basic_pointer_iserializer.cpp
+  ../src/basic_pointer_oserializer.cpp
+  ../src/basic_serializer_map.cpp
+  ../src/basic_text_iprimitive.cpp
+  ../src/basic_text_oprimitive.cpp
+  ../src/basic_xml_archive.cpp
+  ../src/binary_iarchive.cpp
+  ../src/binary_oarchive.cpp
+  ../src/extended_type_info.cpp
+  ../src/extended_type_info_typeid.cpp
+  ../src/extended_type_info_no_rtti.cpp
+  ../src/stl_port.cpp
+  ../src/text_iarchive.cpp
+  ../src/text_oarchive.cpp
+  ../src/polymorphic_iarchive.cpp
+  ../src/polymorphic_oarchive.cpp
+  ../src/polymorphic_text_iarchive.cpp
+  ../src/polymorphic_text_oarchive.cpp
+  ../src/polymorphic_binary_iarchive.cpp
+  ../src/polymorphic_binary_oarchive.cpp
+  ../src/polymorphic_xml_iarchive.cpp
+  ../src/polymorphic_xml_oarchive.cpp
+  ../src/void_cast.cpp
+  ../src/xml_grammar.cpp
+  ../src/xml_iarchive.cpp
+  ../src/xml_oarchive.cpp
+  ../src/xml_archive_exception.cpp
+  ../src/codecvt_null.cpp
+  ../src/utf8_codecvt_facet.cpp
+  ../src/basic_xml_grammar.ipp # doesn't show up in "Source Files" in Xcode"'
+)
+target_include_directories(serialization PUBLIC ${Boost_INCLUDE_DIR})
+
+add_library(wserialization
+  ../src/basic_text_wiprimitive.cpp
+  ../src/basic_text_woprimitive.cpp
+  ../src/text_wiarchive.cpp
+  ../src/text_woarchive.cpp
+  ../src/polymorphic_text_wiarchive.cpp
+  ../src/polymorphic_text_woarchive.cpp
+  ../src/xml_wiarchive.cpp
+  ../src/xml_woarchive.cpp
+  ../src/polymorphic_xml_wiarchive.cpp
+  ../src/polymorphic_xml_woarchive.cpp
+  ../src/xml_wgrammar.cpp
+  ../src/basic_xml_grammar.ipp # doesn't show up in "Source Files" in Xcode"'
+)
+target_include_directories(wserialization PUBLIC ${Boost_INCLUDE_DIR})
+target_link_libraries(wserialization PUBLIC serialization)
+
+# end library build
+###########################
+
+###########################
+# test targets
+
+function( serialization_test test_name)
+  set(arglist)
+  foreach(a IN ITEMS ${ARGN} )
+    set(arglist ${arglist} ../test/${a}.cpp)
+  endforeach()
+  message(STATUS ${test_name})
+  add_executable( ${test_name} ../test/${test_name}.cpp ${arglist} )
+  target_include_directories(${test_name} PUBLIC ${Boost_INCLUDE_DIR})
+  target_link_libraries(${test_name} serialization wserialization Boost::filesystem)
+  add_test( ${test_name} ${test_name} )
+endfunction(serialization_test)
+
+function(archive_test test_name)
+  set(test_listx)
+  set(arglist)
+  foreach(a IN ITEMS ${ARGN} )
+    set(arglist ${arglist} ../test/${a}.cpp)
+  endforeach()
+  foreach(
+    archive-name
+    IN ITEMS ${archive_list}
+  )
+    set(amended_test_name ${test_name}_${archive-name})
+    add_executable(${amended_test_name} ../test/${test_name}.cpp ${arglist})
+    set_property(
+      TARGET ${amended_test_name}
+      PROPERTY COMPILE_DEFINITIONS BOOST_ARCHIVE_TEST=${archive-name}.hpp
+    )
+    target_include_directories(${amended_test_name} PUBLIC ${Boost_INCLUDE_DIR})
+    target_link_libraries(${amended_test_name} serialization wserialization Boost::filesystem)
+    add_test(${amended_test_name} ${amended_test_name})
+    set(test_listx ${test_listx} ${amended_test_name})
+  endforeach()
+  set(test_list ${test_listx} PARENT_SCOPE)
+endfunction(archive_test)
+
+function(polymorphic_archive_test test_name)
+  set(test_listx)
+  set(arglist)
+  foreach(a IN ITEMS ${ARGN} )
+    set(arglist ${arglist} ../test/${a}.cpp)
+  endforeach()
+  foreach(
+    archive-name
+    IN ITEMS ${archive_list}
+  )
+    set(amended_archive_name polymorphic_${archive-name})
+    set(amended_test_name ${test_name}_${amended_archive_name})
+    add_executable(${amended_test_name} ../test/${test_name}.cpp ${arglist})
+    set_property(
+      TARGET ${amended_test_name}
+      PROPERTY COMPILE_DEFINITIONS BOOST_ARCHIVE_TEST=${amended_archive_name}.hpp
+    )
+    message(STATUS ${amended_test_name} " " ${arglist} " " ${amended_archive_name})
+    target_include_directories(${amended_test_name} PUBLIC ${Boost_INCLUDE_DIR})
+    target_link_libraries(${amended_test_name} serialization wserialization Boost::filesystem)
+    add_test(${amended_test_name} ${amended_test_name})
+    set(test_listx ${test_listx} ${amended_test_name})
+endforeach()
+set(test_list ${test_listx} PARENT_SCOPE)
+endfunction(polymorphic_archive_test)
+
+enable_testing()
+
+message(STATUS dll_a)
+add_library(dll_a SHARED ../test/dll_a.cpp)
+target_link_libraries(dll_a serialization)
+
+message(STATUS dll_polymorphic_base)
+add_library(dll_polymorphic_base SHARED ../test/dll_polymorphic_base.cpp)
+target_link_libraries(dll_polymorphic_base serialization)
+
+message(STATUS dll_polymorphic_derived2)
+add_library(dll_polymorphic_derived2 SHARED ../test/dll_polymorphic_derived2.cpp)
+target_link_libraries(dll_polymorphic_derived2 dll_polymorphic_base serialization)
+
+# compile test_dll_plugin.cpp
+# Running the following test requires that the test know the directory 
+# in which the dll is stored. I don't know how to extract this from bjam
+# serialization(test_dll_plugin : : dll_polymorphic_derived2_lib)
+
+if(BUILD_SHARED_LIBS)
+  # this test can only be made to work if we're linking with shared
+  # libraries. Basically the build systems like to have all shared
+  # or all static so if we're building with static C++ libraries
+  # then linking with a shared one - we need multiple C++ libraries
+  # and things get complex.  So just run this test when we're
+  # building with shared libraries (dll in windows speak)
+  serialization_test(test_dll_simple)
+  target_link_libraries(test_dll_simple dll_a serialization)
+endif()
+
+serialization_test(test_private_ctor)
+serialization_test(test_reset_object_address A)
+serialization_test(test_void_cast)
+serialization_test(test_mult_archive_types)
+serialization_test(test_iterators)
+serialization_test(test_iterators_base64)
+serialization_test(test_inclusion)
+serialization_test(test_inclusion2)
+serialization_test(test_smart_cast)
+serialization_test(test_codecvt_null)
+serialization_test(test_strong_typedef)
+serialization_test(test_singleton)
+serialization_test(test_singleton_inherited)
+serialization_test(test_singleton_plain)
+
+archive_test(test_native_array A)
+archive_test(test_boost_array A)
+if(COMPILER_SUPPORTS_CXX11)
+  archive_test(test_array A)
+endif()
+
+archive_test(test_binary)
+archive_test(test_bitset)
+archive_test(test_class_info_save)
+archive_test(test_class_info_load)
+archive_test(test_complex)
+archive_test(test_contained_class A)
+archive_test(test_cyclic_ptrs A)
+archive_test(test_delete_pointer)
+archive_test(test_deque A)
+archive_test(test_derived)
+archive_test(test_derived_class A)
+archive_test(test_diamond)
+archive_test(test_diamond_complex)
+CHECK_INCLUDE_FILE_CXX(forward_list FORWARD_LIST_FOUND)
+if(FORWARD_LIST_FOUND)
+  message(STATUS "forward_list header found")
+  archive_test(test_forward_list A)
+  archive_test(test_forward_list_ptrs A)
+else()
+  message(STATUS "forward_list header NOT found")
+endif()
+
+archive_test(test_helper_support)
+archive_test(test_interrupts)
+archive_test(test_list A)
+archive_test(test_list_ptrs A)
+
+archive_test(test_map A)
+CHECK_INCLUDE_FILE_CXX(hash_map HASH_MAP_FOUND)
+if(HASH_MAP_FOUND)
+  archive_test(test_map_hashed A)
+endif()
+archive_test(test_mi)
+archive_test(test_multiple_ptrs A)
+archive_test(test_multiple_inheritance)
+archive_test(test_new_operator A)
+archive_test(test_non_intrusive)
+archive_test(test_non_default_ctor)
+archive_test(test_non_default_ctor2)
+archive_test(test_null_ptr)
+archive_test(test_nvp A)
+archive_test(test_object)
+archive_test(test_optional)
+archive_test(test_primitive)
+archive_test(test_priority_queue A)
+archive_test(test_private_base)
+archive_test(test_private_base2)
+archive_test(test_queue A)
+archive_test(test_recursion A)
+archive_test(test_registered)
+
+archive_test(test_set A)
+CHECK_INCLUDE_FILE_CXX(hash_set HASH_SET_FOUND)
+if(HASH_SET_FOUND)
+  archive_test(test_set_hashed A)
+endif()
+
+archive_test(test_shared_ptr)
+archive_test(test_shared_ptr_multi_base)
+archive_test(test_shared_ptr_132)
+archive_test(test_simple_class A)
+archive_test(test_simple_class_ptr A)
+CHECK_INCLUDE_FILE_CXX(slist SLIST_FOUND)
+if(SLIST_FOUND)
+  message(STATUS "slist header found")
+  archive_test(test_slist A)
+  archive_test(test_slist_ptr A)
+endif()
+archive_test(test_stack A)
+archive_test(test_split)
+archive_test(test_tracking)
+archive_test(test_unregistered)
+archive_test(test_unique_ptr)
+archive_test(test_valarray)
+archive_test(test_variant A)
+archive_test(test_vector A)
+
+if(BUILD_SHARED_LIBS)
+  polymorphic_archive_test(test_dll_exported polymorphic_derived1)
+  foreach(test_name IN ITEMS ${test_list} )
+    target_link_libraries(${test_name} dll_polymorphic_derived2 dll_polymorphic_base serialization wserialization)
+  endforeach()
+endif()
+
+polymorphic_archive_test(test_no_rtti polymorphic_base polymorphic_derived1 polymorphic_derived2)
+polymorphic_archive_test(test_exported polymorphic_base polymorphic_derived1 polymorphic_derived2)
+polymorphic_archive_test(test_polymorphic test_polymorphic_A A)
+polymorphic_archive_test(test_polymorphic2 test_polymorphic2imp)
+polymorphic_archive_test(test_p_helper)
+
+# end test targets
+####################
+
+####################
+# add headers in IDE
+
+# for serialization
+
+file(GLOB x 
+  RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" 
+  "${CMAKE_CURRENT_SOURCE_DIR}/../include/boost/archive/*.hpp"
+)
+add_custom_target(archive SOURCES ${x})
+set_property(TARGET archive PROPERTY FOLDER "serialization")
+
+file(GLOB x 
+  RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" 
+  "${CMAKE_CURRENT_SOURCE_DIR}/../include/boost/archive/detail/*.hpp"
+)
+add_custom_target(archive-detail SOURCES ${x})
+set_property(TARGET archive-detail PROPERTY FOLDER "serialization")
+
+file(GLOB x 
+  RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" 
+  "${CMAKE_CURRENT_SOURCE_DIR}/../include/boost/archive/impl/*.ipp"
+)
+add_custom_target(archive-impl SOURCES ${x})
+set_property(TARGET archive-impl PROPERTY FOLDER "serialization")
+
+file(GLOB x
+  RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" 
+  "${CMAKE_CURRENT_SOURCE_DIR}/../include/boost/archive/iterators/*.hpp"
+)
+add_custom_target(archive-iterators SOURCES ${x})
+set_property(TARGET archive-iterators PROPERTY FOLDER "serialization")
+
+file(GLOB x 
+  RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" 
+  "${CMAKE_CURRENT_SOURCE_DIR}/../include/boost/serialization/*.hpp"
+)
+add_custom_target(serialization-headers SOURCES ${x})
+set_property(TARGET serialization-headers PROPERTY FOLDER "serialization")
+
+file(GLOB x 
+  RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" 
+  "${CMAKE_CURRENT_SOURCE_DIR}/../include/boost/serialization/detail/*.hpp"
+)
+add_custom_target(serialization-detail SOURCES ${x})
+set_property(TARGET serialization-detail PROPERTY FOLDER "serialization")
+
+# for wserialization
+
+file(GLOB x 
+  RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" 
+  "${CMAKE_CURRENT_SOURCE_DIR}/../include/boost/archive/*_w*.hpp"
+)
+add_custom_target(wserialization_headers SOURCES ${x})
+set_property(TARGET wserialization_headers PROPERTY FOLDER "wserialization")
+
+# end headers in IDE
+####################
+
+#####################
+# add test project to run misc tests
+
+add_executable( test_z ../test/test_z.cpp)
+target_link_libraries(test_z serialization wserialization ${Boost_LIBRARIES})
+
+# end test project
+#####################
@@ -0,0 +1,125 @@
+# Copyright 2020, 2021 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# https://www.boost.org/LICENSE_1_0.txt
+
+cmake_minimum_required(VERSION 3.5...3.16)
+
+project(boost_serialization VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX)
+
+add_library(boost_serialization
+  src/archive_exception.cpp
+  src/basic_archive.cpp
+  src/basic_iarchive.cpp
+  src/basic_iserializer.cpp
+  src/basic_oarchive.cpp
+  src/basic_oserializer.cpp
+  src/basic_pointer_iserializer.cpp
+  src/basic_pointer_oserializer.cpp
+  src/basic_serializer_map.cpp
+  src/basic_text_iprimitive.cpp
+  src/basic_text_oprimitive.cpp
+  src/basic_xml_archive.cpp
+  src/binary_iarchive.cpp
+  src/binary_oarchive.cpp
+  src/codecvt_null.cpp
+  src/extended_type_info.cpp
+  src/extended_type_info_no_rtti.cpp
+  src/extended_type_info_typeid.cpp
+  src/polymorphic_binary_iarchive.cpp
+  src/polymorphic_binary_oarchive.cpp
+  src/polymorphic_iarchive.cpp
+  src/polymorphic_oarchive.cpp
+  src/polymorphic_text_iarchive.cpp
+  src/polymorphic_text_oarchive.cpp
+  src/polymorphic_xml_iarchive.cpp
+  src/polymorphic_xml_oarchive.cpp
+  src/stl_port.cpp
+  src/text_iarchive.cpp
+  src/text_oarchive.cpp
+  src/utf8_codecvt_facet.cpp
+  src/void_cast.cpp
+  src/xml_archive_exception.cpp
+  src/xml_grammar.cpp
+  src/xml_iarchive.cpp
+  src/xml_oarchive.cpp
+)
+
+add_library(boost_wserialization
+  src/basic_text_wiprimitive.cpp
+  src/basic_text_woprimitive.cpp
+  src/binary_wiarchive.cpp
+  src/binary_woarchive.cpp
+  src/polymorphic_text_wiarchive.cpp
+  src/polymorphic_text_woarchive.cpp
+  src/polymorphic_xml_wiarchive.cpp
+  src/polymorphic_xml_woarchive.cpp
+  src/text_wiarchive.cpp
+  src/text_woarchive.cpp
+  src/xml_wgrammar.cpp
+  src/xml_wiarchive.cpp
+  src/xml_woarchive.cpp
+)
+
+add_library(Boost::serialization ALIAS boost_serialization)
+add_library(Boost::wserialization ALIAS boost_wserialization)
+
+target_include_directories(boost_serialization PUBLIC include)
+target_include_directories(boost_wserialization PUBLIC include)
+
+target_link_libraries(boost_serialization
+  PUBLIC
+    Boost::array
+    Boost::assert
+    Boost::config
+    Boost::core
+    Boost::detail
+    Boost::integer
+    Boost::io
+    Boost::iterator
+    Boost::move
+    Boost::mpl
+    Boost::optional
+    Boost::predef
+    Boost::preprocessor
+    Boost::smart_ptr
+    Boost::spirit
+    Boost::static_assert
+    Boost::type_traits
+    Boost::unordered
+    Boost::utility
+    Boost::variant
+  PRIVATE
+    Boost::function
+)
+
+target_link_libraries(boost_wserialization PUBLIC boost_serialization)
+
+target_compile_definitions(boost_serialization
+  PUBLIC BOOST_SERIALIZATION_NO_LIB
+  # Source files already define BOOST_SERIALIZATION_SOURCE
+  # PRIVATE BOOST_SERIALIZATION_SOURCE
+)
+
+target_compile_definitions(boost_wserialization
+  PUBLIC BOOST_SERIALIZATION_NO_LIB
+  # Source files already define BOOST_SERIALIZATION_SOURCE
+  # PRIVATE BOOST_SERIALIZATION_SOURCE
+)
+
+if(BUILD_SHARED_LIBS)
+  target_compile_definitions(boost_serialization PUBLIC BOOST_SERIALIZATION_DYN_LINK)
+  target_compile_definitions(boost_wserialization PUBLIC BOOST_SERIALIZATION_DYN_LINK)
+else()
+  target_compile_definitions(boost_serialization PUBLIC BOOST_SERIALIZATION_STATIC_LINK)
+  target_compile_definitions(boost_wserialization PUBLIC BOOST_SERIALIZATION_STATIC_LINK)
+endif()
+
+if(BOOST_SUPERPROJECT_VERSION AND NOT CMAKE_VERSION VERSION_LESS 3.13)
+  boost_install(TARGETS boost_serialization boost_wserialization VERSION ${BOOST_SUPERPROJECT_VERSION} HEADER_DIRECTORY include)
+endif()
+
+if(BUILD_TESTING AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/test/CMakeLists.txt")
+
+  add_subdirectory(test)
+
+endif()
@@ -0,0 +1,83 @@
+# Copyright 2016 Peter Dimov
+# Copyright 2016 Robert Ramey
+# Distributed under the Boost Software License, Version 1.0.
+# (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
+
+version: 1.0.{build}-{branch}
+
+shallow_clone: true
+
+branches:
+  only:
+    - develop
+#    - master
+
+environment:
+  matrix:
+    - BUILD_TOOLSET: gcc
+      BUILD_LINK: static
+    - BUILD_TOOLSET: gcc
+      BUILD_LINK: shared
+    - BUILD_TOOLSET: msvc-14.0
+      BUILD_LINK: static
+    - BUILD_TOOLSET: msvc-14.0
+      BUILD_LINK: shared
+
+install:
+  - cd ..
+  - git clone -b %APPVEYOR_REPO_BRANCH%  https://github.com/boostorg/boost.git boost-root
+  - cd boost-root
+  - git submodule init libs/align
+  - git submodule init libs/array
+  - git submodule init libs/assert
+  - git submodule init libs/bind
+  - git submodule init libs/compatibility
+  - git submodule init libs/concept_check
+  - git submodule init libs/config
+  - git submodule init libs/container
+  - git submodule init libs/container_hash
+  - git submodule init libs/core
+  - git submodule init libs/detail
+  - git submodule init libs/filesystem
+  - git submodule init libs/function
+  - git submodule init libs/functional
+  - git submodule init libs/integer
+  - git submodule init libs/intrusive
+  - git submodule init libs/io
+  - git submodule init libs/iterator
+  - git submodule init libs/lexical_cast
+  - git submodule init libs/math
+  - git submodule init libs/move
+  - git submodule init libs/mpl
+  - git submodule init libs/numeric/conversion
+  - git submodule init libs/optional
+  - git submodule init libs/predef
+  - git submodule init libs/preprocessor
+  - git submodule init libs/range
+  - git submodule init libs/smart_ptr
+  - git submodule init libs/spirit
+  - git submodule init libs/static_assert
+  - git submodule init libs/system
+  - git submodule init libs/throw_exception
+  - git submodule init libs/tuple
+  - git submodule init libs/type_index
+  - git submodule init libs/type_traits
+  - git submodule init libs/unordered
+  - git submodule init libs/utility
+  - git submodule init libs/variant
+  - git submodule init libs/winapi
+  - git submodule init tools/boost_install
+  - git submodule init libs/headers
+
+  - git submodule init tools/build
+  - git submodule update
+  - xcopy /s /e /q %APPVEYOR_BUILD_FOLDER% libs\serialization
+  - set PATH=C:\mingw-w64\i686-6.3.0-posix-dwarf-rt_v5-rev1\mingw32\bin;%CD%;%PATH%
+  - bootstrap gcc
+  - b2 headers
+
+build: off
+
+test_script:
+  - cd libs/serialization/test
+  - b2 -j2 toolset=%BUILD_TOOLSET% link=%BUILD_LINK%
@@ -1,3 +0,0 @@
-This file is used by the project manager only and should be treated like the project file
-
-
@@ -1,147 +0,0 @@
-<?xml version='1.0' encoding='utf-8' ?>
-<!-- C++Builder XML Project -->
-<PROJECT>
-  <MACROS>
-    <VERSION value="BCB.06.00"/>
-    <PROJECT value="test_simple_class.exe"/>
-    <OBJFILES value="..\test\test_simple_class.obj"/>
-    <RESFILES value="test_simple_class.res"/>
-    <IDLFILES value=""/>
-    <IDLGENFILES value=""/>
-    <DEFFILE value=""/>
-    <RESDEPEN value="$(RESFILES)"/>
-    <LIBFILES value="..\..\..\bin\boost\libs\serialization\build\libboost_serialization.lib\borland\debug\runtime-link-static\libboost_serialization.lib 
-      ..\..\..\bin\boost\libs\serialization\build\libboost_wserialization.lib\borland\debug\runtime-link-static\libboost_wserialization.lib 
-      ..\..\..\bin\boost\libs\test\build\libboost_test_exec_monitor.lib\borland\debug\runtime-link-static\libboost_test_exec_monitor.lib"/>
-    <LIBRARIES value=""/>
-    <SPARELIBS value=""/>
-    <PACKAGES value="vcl.bpi rtl.bpi dbrtl.bpi adortl.bpi vcldb.bpi vclx.bpi bdertl.bpi 
-      vcldbx.bpi ibxpress.bpi dsnap.bpi cds.bpi bdecds.bpi qrpt.bpi teeui.bpi 
-      teedb.bpi tee.bpi dss.bpi teeqr.bpi visualclx.bpi visualdbclx.bpi 
-      dsnapcrba.bpi dsnapcon.bpi bcbsmp.bpi vclie.bpi xmlrtl.bpi inet.bpi 
-      inetdbbde.bpi inetdbxpress.bpi inetdb.bpi nmfast.bpi webdsnap.bpi 
-      bcbie.bpi websnap.bpi soaprtl.bpi dclocx.bpi dbexpress.bpi dbxcds.bpi 
-      indy.bpi bcb2kaxserver.bpi"/>
-    <PATHCPP value=".;..\test"/>
-    <PATHPAS value=".;"/>
-    <PATHRC value=".;"/>
-    <PATHASM value=".;"/>
-    <DEBUGLIBPATH value="$(BCB)\lib\debug"/>
-    <RELEASELIBPATH value="$(BCB)\lib\release"/>
-    <LINKER value="ilink32"/>
-    <USERDEFINES value="_DEBUG;BOOST_ARCHIVE_TEST=xml_warchive.hpp"/>
-    <SYSDEFINES value="NO_STRICT;_NO_VCL;USEPACKAGES"/>
-    <MAINSOURCE value="test_simple_class.bpf"/>
-    <INCLUDEPATH value="..\test;C:\boost_1_31_0;$(BCB)\include;$(BCB)\include\vcl"/>
-    <LIBPATH value="..\test;$(BCB)\lib\obj;$(BCB)\lib"/>
-    <WARNINGS value="-w-par"/>
-    <OTHERFILES value=""/>
-  </MACROS>
-  <OPTIONS>
-    <IDLCFLAGS value="-I..\test -IC:\boost_1_31_0 -I$(BCB)\include -I$(BCB)\include\vcl 
-      -src_suffix cpp -D_DEBUG -DBOOST_ARCHIVE_TEST=xml_warchive.hpp -boa"/>
-    <CFLAG1 value="-Od -Vx -Ve -X- -r- -a8 -b- -k -y -v -vi- -tWC -tWM -c"/>
-    <PFLAGS value="-$YD -$W -$O- -$A8 -v -JPHNE -M"/>
-    <RFLAGS value=""/>
-    <AFLAGS value="/mx /w2 /zd"/>
-    <LFLAGS value="-D&quot;&quot; -ap -Tpe -x -Gn -v"/>
-    <OTHERFILES value=""/>
-  </OPTIONS>
-  <LINKER>
-    <ALLOBJ value="c0x32.obj $(PACKAGES) $(OBJFILES)"/>
-    <ALLRES value="$(RESFILES)"/>
-    <ALLLIB value="$(LIBFILES) $(LIBRARIES) import32.lib cw32mt.lib"/>
-    <OTHERFILES value=""/>
-  </LINKER>
-  <FILELIST>
-      <FILE FILENAME="test_simple_class.res" FORMNAME="" UNITNAME="test_simple_class.res" CONTAINERID="ResTool" DESIGNCLASS="" LOCALCOMMAND=""/>
-      <FILE FILENAME="test_simple_class.bpf" FORMNAME="" UNITNAME="test_simple_class" CONTAINERID="BPF" DESIGNCLASS="" LOCALCOMMAND=""/>
-      <FILE FILENAME="..\test\test_simple_class.cpp" FORMNAME="" UNITNAME="test_simple_class" CONTAINERID="CCompiler" DESIGNCLASS="" LOCALCOMMAND=""/>
-      <FILE FILENAME="..\..\..\bin\boost\libs\serialization\build\libboost_serialization.lib\borland\debug\runtime-link-static\libboost_serialization.lib" FORMNAME="" UNITNAME="libboost_serialization.lib" CONTAINERID="LibTool" DESIGNCLASS="" LOCALCOMMAND=""/>
-      <FILE FILENAME="..\..\..\bin\boost\libs\serialization\build\libboost_wserialization.lib\borland\debug\runtime-link-static\libboost_wserialization.lib" FORMNAME="" UNITNAME="libboost_wserialization.lib" CONTAINERID="LibTool" DESIGNCLASS="" LOCALCOMMAND=""/>
-      <FILE FILENAME="..\..\..\bin\boost\libs\test\build\libboost_test_exec_monitor.lib\borland\debug\runtime-link-static\libboost_test_exec_monitor.lib" FORMNAME="" UNITNAME="libboost_test_exec_monitor.lib" CONTAINERID="LibTool" DESIGNCLASS="" LOCALCOMMAND=""/>
-  </FILELIST>
-  <BUILDTOOLS>
-  </BUILDTOOLS>
-
-  <IDEOPTIONS>
-[Version Info]
-IncludeVerInfo=0
-AutoIncBuild=0
-MajorVer=1
-MinorVer=0
-Release=0
-Build=0
-Debug=0
-PreRelease=0
-Special=0
-Private=0
-DLL=0
-Locale=1033
-CodePage=1252
-
-[Version Info Keys]
-CompanyName=
-FileDescription=
-FileVersion=1.0.0.0
-InternalName=
-LegalCopyright=
-LegalTrademarks=
-OriginalFilename=
-ProductName=
-ProductVersion=1.0.0.0
-Comments=
-
-[HistoryLists\hlIncludePath]
-Count=5
-Item0=..\test;C:\boost_1_31_0\libs\serialization\test;C:\boost_1_31_0;$(BCB)\include;$(BCB)\include\vcl
-Item1=C:\boost_1_31_0\libs\serialization\test;C:\boost_1_31_0;$(BCB)\include;$(BCB)\include\vcl
-Item2=C:\boost_1_31_0\libs;C:\boost_1_31_0\libs\serialization\test;$(BCB)\include;$(BCB)\include\vcl
-Item3=C:\boost_1_31_0\libs\;C:\boost_1_31_0\libs\serialization\test;$(BCB)\include;$(BCB)\include\vcl
-Item4=C:\boost_1_31_0\libs\serialization\test;$(BCB)\include;$(BCB)\include\vcl
-
-[HistoryLists\hlLibraryPath]
-Count=2
-Item0=..\test;C:\boost_1_31_0\libs\serialization\test;$(BCB)\lib\obj;$(BCB)\lib
-Item1=C:\boost_1_31_0\libs\serialization\test;$(BCB)\lib\obj;$(BCB)\lib
-
-[HistoryLists\hlDebugSourcePath]
-Count=1
-Item0=$(BCB)\source\vcl
-
-[HistoryLists\hlConditionals]
-Count=2
-Item0=_DEBUG;BOOST_ARCHIVE_TEST=xml_warchive.hpp
-Item1=_DEBUG
-
-[Debugging]
-DebugSourceDirs=$(BCB)\source\vcl
-
-[Parameters]
-RunParams=
-Launcher=
-UseLauncher=0
-DebugCWD=
-HostApplication=
-RemoteHost=
-RemotePath=
-RemoteLauncher=
-RemoteCWD=
-RemoteDebug=0
-
-[Compiler]
-ShowInfoMsgs=0
-LinkDebugVcl=1
-LinkCGLIB=0
-
-[CORBA]
-AddServerUnit=1
-AddClientUnit=1
-PrecompiledHeaders=1
-
-[Language]
-ActiveLang=
-ProjectLang=
-RootDir=
-  </IDEOPTIONS>
-</PROJECT>
@@ -8,29 +8,54 @@

 project boost/serialization
    : source-location ../src
-    ;
+    : requirements
+      <conditional>@include-spirit
+;

+import ../../config/checks/config : requires ;
+
+SPIRIT_ROOT = [ modules.peek : SPIRIT_ROOT ] ;
 rule include-spirit ( properties * )
 {
-    local result ;
-    local SPIRIT_ROOT = [ modules.peek : SPIRIT_ROOT ] ;
-    for local tset in borland { # vc iw
-        if ( <toolset>$(tset) in $(properties) ) {
-            if ( $(SPIRIT_ROOT) ) {
-                result = <cxxflags>-I$(SPIRIT_ROOT) ;
-            }
-            else {
-                echo **** spirit 1.6x required to build library with this compiler **** ;
-                result = <build>no ;
+    local old-compiler ;
+    if <toolset>borland in $(properties)
+    {
+        if ! <toolset-borland:version>6.1.0 in $(properties)  
+        {  
+            old-compiler = true ;  
+        }  

-            }
-        }
    }
+    else if <toolset>msvc in $(properties)
+    {
+        if <toolset-msvc:version>6.5 in $(properties)
+          || <toolset-msvc:version>7.0 in $(properties)
+        {            
+            old-compiler = true ;
+        }        
+    }
+        
+    local result ;
+    if $(old-compiler)
+    {        
+        if $(SPIRIT_ROOT)
+        {
+            # note - we can't use <include>$(SPIRIT_ROOT) because 
+            # it puts -I$(SPIRIT_ROOT) AFTER the "../../.." in the command line.
+            # so use these instead 
+            result = <cxxflags>-I$(SPIRIT_ROOT) ;
+        }
+        else 
+        {
+            echo **** spirit 1.6x required to build library with this compiler **** ;
+            result = <build>no ;
+        }
+    }    
    return $(result) ;
 }

-
 SOURCES = 
+    archive_exception
    basic_archive
    basic_iarchive
    basic_iserializer
@@ -44,44 +69,79 @@ SOURCES =
    basic_xml_archive
    binary_iarchive
    binary_oarchive
-    codecvt_null
    extended_type_info
-    extended_type_info_no_rtti
    extended_type_info_typeid
+    extended_type_info_no_rtti
    polymorphic_iarchive
    polymorphic_oarchive
    stl_port
    text_iarchive
    text_oarchive
+    polymorphic_text_iarchive
+    polymorphic_text_oarchive
+    polymorphic_binary_iarchive
+    polymorphic_binary_oarchive
+    polymorphic_xml_iarchive
+    polymorphic_xml_oarchive
    void_cast
    xml_grammar
    xml_iarchive
+    xml_archive_exception
+    codecvt_null
+ ;
+
+SOURCES_HAS_STD_WSTREAMBUF = 
    xml_oarchive
+    utf8_codecvt_facet
 ;
-    
+
 WSOURCES = 
    basic_text_wiprimitive
    basic_text_woprimitive
-    binary_wiarchive
-    binary_woarchive
    text_wiarchive
    text_woarchive
-    utf8_codecvt_facet
+    polymorphic_text_wiarchive
+    polymorphic_text_woarchive
    xml_wgrammar
    xml_wiarchive
    xml_woarchive
+    polymorphic_xml_wiarchive
+    polymorphic_xml_woarchive
 ;

 lib boost_serialization 
-        : $(SOURCES).cpp
-	: <toolset>msvc:<cxxflags>/Gy 
-	  <link>shared:<define>BOOST_SERIALIZATION_DYN_LINK=1
-          <conditional>@include-spirit
-	;
+    : ## sources ##
+     $(SOURCES).cpp
+    : ## requirements ##
+    [ check-target-builds ../../config/checks//std_wstreambuf : <source>../src/$(SOURCES_HAS_STD_WSTREAMBUF).cpp ]
+    <toolset>msvc:<cxxflags>/Gy
+    <toolset>msvc:<define>_SCL_SECURE_NO_WARNINGS
+    <toolset>msvc:<define>_CRT_SECURE_NO_WARNINGS
+    <toolset>clang:<cxxflags>"-fvisibility=hidden -fvisibility-inlines-hidden"
+    <toolset>gcc:<cxxflags>"-fvisibility=hidden -fvisibility-inlines-hidden"
+    <toolset>darwin:<cxxflags>"-fvisibility=hidden -fvisibility-inlines-hidden"
+    <toolset>gcc:<cxxflags>"-ftemplate-depth-255"
+    <toolset>clang:<cxxflags>"-ftemplate-depth-255"
+    <toolset>darwin:<cxxflags>"-ftemplate-depth-255"
+    <link>shared:<define>BOOST_SERIALIZATION_DYN_LINK=1
+    ;

 lib boost_wserialization 
-        : $(WSOURCES).cpp boost_serialization 
-        : <toolset>msvc:<cxxflags>/Gy 
-	  <link>shared:<define>BOOST_SERIALIZATION_DYN_LINK=1	
-          <conditional>@include-spirit
-	;
+    : $(WSOURCES).cpp boost_serialization 
+    : 
+    [ requires std_wstreambuf ]
+    <toolset>msvc:<cxxflags>/Gy 
+    <toolset>msvc:<define>_SCL_SECURE_NO_WARNINGS
+    <toolset>msvc:<define>_CRT_SECURE_NO_WARNINGS
+    <toolset>clang:<cxxflags>"-fvisibility=hidden -fvisibility-inlines-hidden"
+    <toolset>gcc:<cxxflags>"-fvisibility=hidden -fvisibility-inlines-hidden"
+    <toolset>darwin:<cxxflags>"-fvisibility=hidden -fvisibility-inlines-hidden"
+    <toolset>gcc:<cxxflags>"-ftemplate-depth-255"
+    <toolset>clang:<cxxflags>"-ftemplate-depth-255"
+    <toolset>darwin:<cxxflags>"-ftemplate-depth-255"
+    # note: both serialization and wserialization are conditioned on the this
+    # switch - don't change it to BOOST_WSERIALIZATION_DYN_LINK
+    <link>shared:<define>BOOST_SERIALIZATION_DYN_LINK=1
+    ;
+
+boost-install boost_serialization boost_wserialization ;
@@ -1,126 +0,0 @@
-# Boost serialization Library Build Jamfile
-#  (C) Copyright Robert Ramey 2002-2004.
-#  Use, modification, and distribution are subject to the 
-#  Boost Software License, Version 1.0. (See accompanying file 
-#  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-#
-#  See http://www.boost.org/libs/serialization for the library home page.
-
-# building this library needs a working version of spirit
-rule toolset::require-boost-spirit-support ( toolset variant : subvariant-path properties * )
-{
-    local requires-spirit = false ;
-    switch $(toolset) {
-    case "borland*" :
-        requires-spirit = true ;
-    case "msvc*" :
-        requires-spirit = true ;
-    case "iw*" :
-        requires-spirit = true ;
-    case "vc-6*" :
-        requires-spirit = true ;
-    case "vc7*" :
-        requires-spirit = true ;
-    case "vc-7_0*" :
-        requires-spirit = true ;
-    case "gcc-2*" :
-        requires-spirit = true ;
-    }
-    if $(requires-spirit) = true {
-        if  $(SPIRIT_ROOT) # && ( exist $(SPIRIT_ROOT) )
-        {
-            properties += <include>$(SPIRIT_ROOT) ;
-        }
-        else {
-            echo **** spirit 1.6x required to build library with this compiler **** ;
-            properties = [ impose-requirements $(properties) : <build>no ] ;
-        }
-    }
-    return $(subvariant-path) $(properties) ;
-}
-
-# certain tool sets are known apriori not to support wide char i/o
-rule toolset::require-wide-char-io-support ( toolset variant : subvariant-path properties * )
-{
-    switch $(toolset) {
-    case "*cygwin" :
-        echo **** wide char i/o not supported by cygwin gcc library **** ;
-        properties = [ impose-requirements $(properties) : <build>no ] ;
-
-    case "como*" :
-        echo **** wide char i/o not supported by libcomo standard library **** ;
-        properties = [ impose-requirements $(properties) : <build>no ] ;
-    case "mingw*" :
-        if ! [ MATCH "^([5][.][0])$" : [ get-values <stlport-version> : $(properties) ] ]
-        {
-            echo **** wide char i/o not supported by the mingw standard library **** ;
-            properties = [ impose-requirements $(properties) : <build>no ] ;
-        }
-    }
-    return $(subvariant-path) $(properties) ;
-}
-
-# certain tool sets are known apriori not to support creation of DLLS
-rule toolset::require-shared-libraries-support ( toolset variant : subvariant-path properties * )
-{
-    switch $(toolset) {
-    case "como*" :
-        echo **** DLLs cannot be built with this compiler **** ;
-        properties = [ impose-requirements $(properties) : <build>no ] ;
-    case "msvc-stlport*" :
-        echo **** DLLs cannot be built with this compiler and stlport 4.x **** ;
-        properties = [ impose-requirements $(properties) : <build>no ] ;
-    case "vc-6_5-stlport*" :
-        echo **** DLLs cannot be built with this compiler and stlport 4.x **** ;
-        properties = [ impose-requirements $(properties) : <build>no ] ;
-    case "cw*" :
-        local runtime-link = [ get-values <runtime-link> : $(properties) ] ;
-        if static in $(runtime-link) {
-            echo **** DLLS cannot be built with static runtime linking **** ;
-            properties = [ impose-requirements $(properties) : <build>no ] ;
-        }
-
-    }
-    return $(subvariant-path) $(properties) ;
-}
-
-# certain tool sets display warnings which are not applicable to the serialization library
-rule toolset::suppress-warnings ( toolset variant : subvariant-path properties * )
-{
-    switch $(toolset) {
-    case "vc-8*" :
-        properties = [ impose-requirements $(properties) : <cxxflags>"-wd4996" ] ;    
-    case "*cygwin*" :
-        properties = [ impose-requirements $(properties) : <cxxflags>"-Wno-non-virtual-dtor -Wno-ctor-dtor-privacy" ] ;
-    case "gcc*" :
-        properties = [ impose-requirements $(properties) : <cxxflags>"-Wno-non-virtual-dtor -Wno-ctor-dtor-privacy" ] ;
-    case "mingw*" :
-        properties = [ impose-requirements $(properties) : <cxxflags>"-Wno-non-virtual-dtor -Wno-ctor-dtor-privacy" ] ;
-    case "borland*" :
-        properties = [ impose-requirements $(properties) : <cxxflags>"-w-8080 -w-8071 -w-8057 -w-8062 -w-8008 -w-0018 -w-8066" ] ;
-    }
-    return $(subvariant-path) $(properties) ;
-}
-
-# set optimization switches for certain toolsets. We do it here rather than in the
-# Jamfile requirements because here we can use a regex for the compiler name.
-rule toolset::optimizations ( toolset variant : subvariant-path properties * )
-{
-    switch $(toolset) {
-    case "vc*" :
-        properties = [ impose-requirements $(properties) : <cxxflags>"-Gy" ] ;    
-    case "msvc*" :
-        properties = [ impose-requirements $(properties) : <cxxflags>"-Gy" ] ;
-    case "gcc*" :
-        properties = [ impose-requirements $(properties) : <cxxflags>"-ftemplate-depth-255" ] ;
-    case "qcc*" :
-        properties = [ impose-requirements $(properties) : <cxxflags>"-ftemplate-depth-255" ] ;
-    case "QCC*" :
-        properties = [ impose-requirements $(properties) : <cxxflags>"-ftemplate-depth-255" ] ;
-    case "mingw*" :
-        properties = [ impose-requirements $(properties) : <cxxflags>"-ftemplate-depth-255" ] ;
-    }
-    return $(subvariant-path) $(properties) ;
-}
-
-
@@ -1,4 +1,4 @@
-<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <!--
 (C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com . 
@@ -27,30 +27,36 @@ http://www.boost.org/LICENSE_1_0.txt)
 </table>
 <hr>
 <ul>
+  <li>Takatoshi Kondo found and corrected a very obscure and difficult bug in the 
+  serialization of virtual base classes.
+  <li><a href="http://www.autoform.com">AutoForm Engineering GmbH</a> supported
+  development efforts to extend correct serialization to objects stored in DLLS.
+  <li><a href"http://www.cadence.com/il">Cadence Israel</a> supported enhancement
+  and testing of the portable binary archive.
  <li>David Abrahams improved implementation of "export" functionality.  This not
  only eliminated an annoying header sequencing requirement, but also the need to maintain
  a list of "known archives".
-  <li>Mattias Troyer ehnanced the implementation of native binary archives.  This includes
+  <li>Mattias Troyer enhanced the implementation of native binary archives.  This includes
  enhancement and generalization of the library itself including generalization of
  the wrapper concept.
-  <li>Markus Schöpflin tracked down issues with TRU64 compiler resulting in 100% passing.
+  <li>Markus Sch&ouml;pflin tracked down issues with TRU64 compiler resulting in 100% passing.
  <li><a href="mailto::troy@resophonic.com"> Troy D. Straszheim</a> made the initial version of variant serialization.
  <li>Tonko Juricic helped refine and complete project files for VC 7.1 ide
-  <li><a href="../../../people/rene_rivera.htm">Rene Rivera</a> tracked down several issues related to 
+  <li><a href="http://www.boost.org/people/rene_rivera.htm">Rene Rivera</a> tracked down several issues related to 
  Code Warrior, toolset configuration and bjam and much else.
-  <li>Martin Ecker detected (and fixed!) a number of sublte errors regarding cyclic
+  <li>Martin Ecker detected (and fixed!) a number of subtle errors regarding cyclic
  pointers, shared pointers.  He also built the library as a DLL and raised some issues
  <li>Pavel Vozenilek invested much effort in review of code and documentation
-  resulting in many improvements.  In addition he help a lot with porting to other
+  resulting in many improvements.  In addition he helped a lot with porting to other
  platforms including VC 6.0, Intel, and especially Borland.
-  <li><a href="../../../people/jens_maurer.htm">Jens Maurer</a> and
-  <a href="../../../people/beman_dawes.html">Beman Dawes</a> who got the boost
+  <li><a href="http://www.boost.org/people/jens_maurer.htm">Jens Maurer</a> and
+  <a href="http://www.boost.org/people/beman_dawes.html">Beman Dawes</a> who got the boost
  serialization ball rolling.  It was one or both of these two that invented
  the much beloved <code>&amp;</code> syntax used to implement both save and
-  load in one fuction specification.
-  <li><a href="../../../people/vladimir_prus.htm">Vladimir Prus</a> for evaluating an
+  load in one function specification.
+  <li><a href="http://www.boost.org/people/vladimir_prus.htm">Vladimir Prus</a> for evaluating an
  early draft and contributing the diamond inheritance example.
-  <li><a href="../../../people/william_kempf.htm">William E. Kempf</a>
+  <li><a href="http://www.boost.org/people/william_kempf.htm">William E. Kempf</a>
  who made the templates for this and other boost manuals.  This relieved
  me of much aggravation.
  <li><a href="mailto:vahan@unicad.am">Vahan Margaryan</a> and
@@ -70,10 +76,11 @@ http://www.boost.org/LICENSE_1_0.txt)
  Mr. Rozenthal in particular wrote an incredibly insightful analysis
  that has driven all subsequent development that has resulted in the
  current package.
-  <li>Dave Harris proposal and spirited defense of it lead to a re-thinking
+  <li>Dave Harris proposal and spirited defense of it led to a re-thinking
  of the overrides for serialization of pointers.  This resulted in a simpler
  and more effective method of accounting for non-default constructors
  required by serialization of pointers and STL collections.
+  <li><a href="mailto:admin@thefireflyproject.us">Bryce Lelbach</a> rewrote the XML Serialization grammar using Boost.Spirit 2.x.
 </ul>
 <hr>
 <p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2002-2004. 
@@ -1,7 +1,7 @@
 <!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <!--
-(C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com . 
+(C) Copyright 2002-10 Robert Ramey - http://www.rrsd.com . 
 Use, modification and distribution is subject to the Boost Software
 License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 http://www.boost.org/LICENSE_1_0.txt)
@@ -26,75 +26,96 @@ http://www.boost.org/LICENSE_1_0.txt)
 </table>
 <hr>
 <dl class="page-index">
-  <dt><a href="#implementation">Implementation</a>
+  <dt><a href="#trivial">Trivial Archive</a>
+  <dt><a href="#implementation">More Useful Archive Classes</a>
  <dt><a href="#usage">Usage</a>
  <dt><a href="#testing">Testing</a>
  <dt><a href="#polymorphic">Polymorphic Archives</a>
 </dl>
-<h3><a name="implementation">Implementation</a></h3>
+
+<h3><a name="trivial">Trivial Archive</a></h3>
 The <a href="archives.html"><strong>Archive</strong></a> concept specifies the functions that a
-class must implement to in order to be used to serialize 
-<a href="serialization.html"><strong>Serializable</strong></a> types. 
-The library implements a family of archives appropriate for different purposes.  
-This section describes how they have been implemented and how one can implement his own archive class.
-Our discussion will focus on archives used for loading as the hierarchy is exactly analogous
-for archives used for saving data.
+class must implement in order to be used to serialize 
+<a href="serialization.html"><strong>Serializable</strong></a> types.
+
+Our discussion will focus on archives used for saving as the hierarchy is exactly analogous
+for archives used for loading data.
+
+<h4>Minimum Requirements</h4>
+
+The simplest class which will model the <a href="archives.html"><strong>Archive</strong></a> concept specifies the functions that a
+class will look like:
+
+<pre><code>
+#include &lt;cstddef&gt; // std::size_t
+//////////////////////////////////////////////////////////////
+// class trivial_oarchive
+class trivial_oarchive {
+public:
+    //////////////////////////////////////////////////////////
+    // public interface used by programs that use the
+    // serialization library
+    typedef boost::mpl::bool_&lt;true&gt; is_saving; 
+    typedef boost::mpl::bool_&lt;false&gt; is_loading;
+    template&lt;class T&gt; void register_type(){}
+    template&lt;class T&gt; trivial_oarchive &amp; operator&lt;&lt;(const T &amp; t){
+        return *this;
+    }
+    template&lt;class T&gt; trivial_oarchive &amp; operator&amp;(const T &amp; t){
+        return *this &lt;&lt; t;
+    }
+    void save_binary(void *address, std::size_t count){};
+};
+</code></pre>
+The simplest possible input archive class is analogous to the above.
+In the following discussion, only output archives will be addressed.
+Input archives are exactly symmetrical to output archives.
 <p>
-Our archives have been factored in to a tree of classes in order to minimize
+This archive will compile and execute with any types which implement the
+<a href="serialization.html"><strong>Serializable</strong></a> concept.
+For an example see
+<a href="../example/demo_trivial_archive.cpp" target="demo_trivial_archive">
+<code style="white-space: normal">demo_trivial_archive.cpp</code></a>.
+Of course this program won't produce any output as it is.  But it provides
+the starting point for a simple class which can be used to log formatted
+output.  See the implementation of a <a href="simple_log.html">simple
+log archive</a> to how this has been done.
+
+<h3><a name="implementation">More Useful Archive Classes</a></h3>
+The above example is fine as far as it goes.  But it doesn't implement
+useful features such as serialization of pointers, class versioning
+and others. This library implements a family of full featured archive
+classes appropriate for a variety of purposes.  
+
+<p>
+Our archives have been factored into a tree of classes in order to minimize
 repetition of code.  This is shown in the accompanying 
 <a target="class_diagram" href="class_diagram.html">class diagram</a>.
-All input archives should be derived from the following template:
-<pre><code>
-template&lt;class Archive&gt;
-detail::common_iarchive;
-</code></pre>
-<h4>Minimum Requirments</h4>
-An instance of the this template handles all the "bookkeeping" associated
-with serialization. In order to be a functional only the following additional
-functions <strong>must</strong> be defined:
-<dl>
-<dt><h4><code>void load(T &t);</code></h4></dt>
-<dd>
-This function must be implemented for all primitive data types.  This can be
-accomplished through the use of a member template or explict declarations
-for all prmititive types.
-</dd>

-<dt><h4><code>void load_binary(void *address, std::size_t size);</code></h4></dt>
-<dd>
-This function should <code style="white-space: normal">size</code> bytes from the archive, and 
-copy them in to memory starting at address <code style="white-space: normal">address</code>.
-</dd>
-
-<dt><h4><code>friend class boost::archive::load_access;</code></h4></dt>
-<dd>
-In addition, such a class <strong>must</strong> provide a the following
-friend declaration grant access to the core serialization library to the functions
-of this class.
-</dd>
-
-</dl>
-
-So, the most trivial implementation of an input archive would look like this:
+Any class which fulfills the following requirements will fit into
+this hierarchy and implement all the features we require.  Deriving from
+the base class <a href="../../../boost/archive/detail/common_oarchive.hpp" target="common_oarchive_hpp">
+common_oarchive.hpp</a> provides all features we desire which
+are missing from trivial_oarchive above.

 <pre><code>
-<a href="../../../boost/archive/detail/common_iarchive.hpp" target="common_iarchive_hpp">
-#include &lt;boost/archive/detail/common_iarchive.hpp&gt;
+<a href="../../../boost/archive/detail/common_oarchive.hpp" target="common_oarchive_hpp">
+#include &lt;cstddef&gt; // std::size_t
+#include &lt;boost/archive/detail/common_oarchive.hpp&gt;
 </a>
-
 /////////////////////////////////////////////////////////////////////////
-// class trivial_iarchive - read serialized objects from a input text stream
-class trivial_iarchive : 
-    public boost::archive::detail::common_iarchive&lt;trivial_iarchive&gt;
+// class complete_oarchive
+class complete_oarchive : 
+    public boost::archive::detail::common_oarchive&lt;complete_oarchive&gt;
 {
-    // permit serialization system priviledged access to permit
+    // permit serialization system privileged access to permit
    // implementation of inline templates for maximum speed.
-    friend class boost::archive::load_access;
+    friend class boost::archive::save_access;

-    // member template for loading primitive types.
-    // Override for any types/templates that special treatment
+    // member template for saving primitive types.
+    // Specialize for any types/templates that require special treatment
    template&lt;class T&gt;
-    void load(T &amp; t);
+    void save(T &amp; t);

 public:
    //////////////////////////////////////////////////////////
@@ -102,36 +123,32 @@ public:
    // serialization library

    // archives are expected to support this function
-    void load_binary(void *address, std::size_t count);
+    void save_binary(void *address, std::size_t count);
 };
-
 </code></pre>
-The simplest possible output archive class is exactly analogous to the above.
-In the following discussion, only input archives will be addressed.
-Output archives are exactly symmetrical to input archives.
-<p>
-Given a suitable definitions of <code style="white-space: normal">load</code>
-and <code style="white-space: normal">load_binary</code>, 
+
+Given a suitable definitions of <code style="white-space: normal">save</code>
+and <code style="white-space: normal">save_binary</code>, 
 any program using serialization with a conforming C++ compiler should compile 
 and run with this archive class.

 <h4>Optional Overrides</h4>

-The <code style="white-space: normal">detail::common_iarchive</code> class contains
+The <code style="white-space: normal">detail::common_oarchive</code> class contains
 a number of functions that are used by various parts of the serialization library
 to help render the archive in a particular form.

 <dl>

-<dt><h4><code>void load_start()</code></h4></dt>
+<dt><h4><code>void save_start(char const *)</code></h4></dt>
 <dd>
 <strong>Default</strong>:Does nothing.<br>
 <strong>Purpose</strong>:To inject/retrieve an object name into the archive.  Used
-by XML archive to inject "&lt;name " before data.
+by XML archive to inject "&lt;name&gt;" before data.
 </dd>
 <p>

-<dt><h4><code>void load_end()</code></h4></dt>
+<dt><h4><code>void save_end(char const *)</code></h4></dt>
 <dd>
 <strong>Default</strong>:Does nothing.<br>
 <strong>Purpose</strong>:To inject/retrieve an object name into the archive. Used
@@ -143,33 +160,28 @@ by XML archive to inject "&lt;/name&gt;" after data.
 <dd>
 <strong>Default</strong>:Does nothing.<br>
 <strong>Purpose</strong>:Called <strong>each time</strong> user data is saved. 
-Its not called when archive book keeping data is saved.  This is used by XML archives 
-to determine  when to inject a "&gt;" character at end of XML header. XML output archives 
+It's not called when archive bookkeeping data is saved.  This is used by XML archives 
+to determine  when to inject a "&gt;" character at the end of an XML header. XML output archives 
 keep their own internal flag indicating that data being written is header data. This
 internal flag is reset when an object start tag is written. When 
 <code style="white-space: normal">void end_preamble()</code> is invoked and this internal flag is set
 a "&gt;" character is appended to the output and the internal flag is reset. The default
-implementation for <code style="white-space: normal">void end_preamble()</code> is a no-op there by permitting it
+implementation for <code style="white-space: normal">void end_preamble()</code> is a no-op thereby permitting it
 to be optimised away for archive classes that don't use it.
 </dd>
 <p>
 <dt><h4><code>
 template&lt;class T&gt;
-void load_override(T & t, int);
+void save_override(T &amp; t, int);
 </code></h4></dt>
 <dd>
-<strong>Default</strong>:Invokes <code style="white-space: normal">archive::load(Archive & ar, t)</code><br>
+<strong>Default</strong>:Invokes <code style="white-space: normal">archive::save(Archive &amp; ar, t)</code><br>
 This is the main entry into the serialization library.<br>
-<strong>Purpose</strong>:This can be overridden in cases where the data is to be written 
+<strong>Purpose</strong>:This can be specialized in cases where the data is to be written 
 to the archive in some special way.  For example, XML archives implement special handling for
 name-value pairs by overriding this function template for name-value pairs.  
 This replaces the default name-value pair handling, which is just to throw away the name,
 with one appropriate for XML which writes out the start of an XML tag with the correct object name.
-<p>
-The second argument must be part of the function signature even this it is not used.
-Its purpose is to be sure that code is portable to compilers which fail to correctly
-implement partial function template ordering.  For more information see
-<a href="implementation.html#functiontemplateordering">this</a>.
 </dd>

 </dl>
@@ -178,14 +190,14 @@ implement partial function template ordering.  For more information see
 The serialization library injects bookkeeping data into the serialization archive.
 This data includes things like object ids, version numbers, class names etc.  Each
 of these objects is included in a wrapper so that the archive class can override the
-implementation of <code style="white-space: normal">void load_override(T & t, int);</code>.
+implementation of <code style="white-space: normal">void save_override(T &amp; t, int);</code>.
 For example, in the XML archive, the override for this type renders an object_id equal to 23 as
 "object_id=_23".  The following table lists the types defined in the 
 <code style="white-space: normal">boost::archive namespace</code>
 used internally by the serialization library:
 <p>
 <table border>
-<tr><th align=left>type</th><th align=left><code style="white-space: normal">default<br>serialed as</code></th>
+<tr><th align=left>type</th><th align=left><code style="white-space: normal">default<br>serialized as</code></th>
 <tr><td><code style="white-space: normal">version_type</code></td><td><code style="white-space: normal">unsigned int</code></td>             
 <tr><td><code style="white-space: normal">object_id_type</code></td><td><code style="white-space: normal">unsigned int</code></td>   
 <tr><td><code style="white-space: normal">object_id_reference_type</code></td><td><code style="white-space: normal">unsigned int</code></td>   
@@ -197,7 +209,7 @@ used internally by the serialization library:
 </table>
 <p>
 All of these are associated with a default serialization defined in terms of primitive types
-so it isn't a requirement to define <code style="white-space: normal">load_override</code> 
+so it isn't a requirement to define <code style="white-space: normal">save_override</code> 
 for these types.
 <p>
 These are defined in
@@ -214,19 +226,16 @@ explicitly provided for these types. For an example see
 In real practice, we probably won't be quite done. 
 One or more of the following issues may need to be addressed:
 <ul>
-    <li>Many compilers fail to implement correct partial ordering of
-    function templates.  The archives included with this library work around
-    this using argument overloading.  This technique is described in
-    <a target="detail" href="implementation.html#functiontemplateordering">
-    another section of this manual</a>
    <li>Even if we are using a conforming compiler, we might want our new archive class
    to be portable to non-conforming compilers.
    <li>Our archive format might require extra information inserted into it.  For
    example, XML archives need &lt;name ... &gt;...&lt;/name&gt; surrounding
    all data objects.
    <li>Addressing any of the above may generate more issues to be addressed.
-    <li>The archives included with library are all templates which use a
-    <code style="white-space: normal">stream</code> as a template parameter rather than simple classes.
+    <li>The archives included with the library are all templates which use a
+    <code style="white-space: normal">stream</code> or
+    <code style="white-space: normal">streambuf</code>
+    as a template parameter rather than simple classes.
    Combined with the above, even more issues arise with non-conforming compilers.
 </ul>
 The attached <a target="class_diagram" href="class_diagram.html">class diagram</a>
@@ -241,17 +250,15 @@ EXCEPT for one special case.
 <ul>
    <li>Instances of a derived class are serialized through a base class pointer.
    <li>Such instances are not "registered" neither implicitly nor explicitly. That
-    is, the macro <code style="white-space: normal">BOOT_CLASS_EXPORT</code> is used to instantiate the serialization
-    code for the included archives.
+    is, the macro <code style="white-space: normal">BOOST_CLASS_EXPORT</code> is used 
+    to instantiate the serialization code for the included archives.
 </ul>
-The problem here is that BOOT_CLASS_EXPORT only generates code for those archives
-included with the library - not those added subsequently.  To generate code for
-newly created archive classes, the following should be used.
+
+To make this work, the following should be included after the archive
+class definition.
 <pre><code>
-#define BOOST_ARCHIVE_CUSTOM_OARCHIVE_TYPES trivial_oarchive
-#define BOOST_ARCHIVE_CUSTOM_IARCHIVE_TYPES trivial_iarchive
+BOOST_SERIALIZATION_REGISTER_ARCHIVE(Archive)
 </code></pre>
-before <code style="white-space: normal">BOOST_CLASS_EXPORT</code> is invoked for any serializable class.
 Failure to do this will not inhibit the program from compiling, linking
 and executing properly - except in one case.  If an instance of a derived
 class is serialized through a pointer to its base class, the program
@@ -259,23 +266,20 @@ will throw an
 <a href="exceptions.html#unregistered_class"><code style="white-space: normal">unregistered_class</code></a>
 exception.
 <p>
-Only one of the above statements is permitted, However, any number of new archive
-classes can be specified as list separated by commas.

 <h4><a name="testing">Testing</h4>
 Exhaustive testing of the library requires testing the different aspects of object
-serialization with each archive.  There are 36 different tests that can run with any archive.  There are
-5 "standard archives" included with the system. (3 in systems which don't support wide
-charactor i/o). 
+serialization with each archive.  There are 46 different tests that can run with any archive.  
+There are 5 "standard archives" included with the system. 
+(3 in systems that don't support wide character i/o). 
 <p>
-In addition, there are 22 other tests which aren't related to any particular archive
-class.
+In addition, there are 28 other tests which aren't related to any particular archive class.
 <p>
 The default <code style="white-space: normal">bjam</code> testing setup will run all
-the above described tests.  This will result in as many as 39 archive tests * 5 
-standard archives + 25 general tests = 220 tests. Note that a complete test of the
+the above described tests.  This will result in as many as 46 archive tests * 5 
+standard archives + 28 general tests = 258 tests. Note that a complete test of the
 library would include DLL vs static library, release vs debug so the actual total 
-would be closer to 880 tests.
+would be closer to 1032 tests.
 <p>
 For each archive there is a header file in the test directory similar to the one below.
 The name of this archive is passed to the test program by setting the
@@ -302,16 +306,16 @@ typedef std::ifstream test_istream;
 #define TEST_STREAM_FLAGS (std::ios_base::openmode)0
 </code></pre>

-To test a new archive, for example, portable binary archives, make a
-header file <code style="white-space: normal">portable_binary_archive.hpp</code>
+To test a new archive, for example, portable binary archives, with the gcc compiler, 
+make a header file <code style="white-space: normal">portable_binary_archive.hpp</code>
 and invoke <code style="white-space: normal">bjam</code> with
 <pre><code> 
 -sBOOST_ARCHIVE_LIST=portable_binary_archive.hpp
 </code></pre>
-This process in encapsulated in the shell script 
-<code style="white-space: normal">run_archive_test</code> whose command line is
+This process in encapsulated in the shell or cmd script 
+<code style="white-space: normal">library_test</code> whose command line is
 <pre><code>
-run_archive_test &lt;test header file&gt; &lt;toolset&gt; [&lt;boost root&gt;] [&lt;target directory&gt;]
+library_test --toolset=gcc -sBOOST_ARCHIVE_LIST=portable_binary_archive.hpp
 </code></pre>
 <h3><a name="polymorphic">Polymorphic Archives</a></h3>

@@ -319,7 +323,7 @@ run_archive_test &lt;test header file&gt; &lt;toolset&gt; [&lt;boost root&gt;] [

 All archives described so far are implemented as templates.  Code to save and load
 data to archives is regenerated for each combination of archive class and data type.
-Under these cirumstances, a good optimizing compiler that can expand 
+Under these circumstances, a good optimizing compiler that can expand 
 <code>inline</code> functions to enough depth will generate fast code.  
 However:
 <ul>
@@ -340,7 +344,7 @@ each time a new archive class is created.
 </ul>

 <h4>Implementation</h4>
-The solution is the the pair <code>polymorphic_oarchive</code>
+The solution is the pair <code>polymorphic_oarchive</code>
 and <code>polymorphic_iarchive</code>.  They present a common interface of virtual
 functions - no templates - that is equivalent to the standard templated one.

@@ -357,7 +361,7 @@ show how polymorphic archives are to be used. Note the following:
  <li><a target=demo_polymorphic_A_hpp href="../example/demo_polymorphic_A.hpp"><code style="white-space: normal">demo_polymorphic_A.hpp</code></a> and
 <a target=demo_polymorphic_A_cpp href="../example/demo_polymorphic_A.cpp"><code style="white-space: normal">demo_polymorphic_A.cpp</code></a>
 contain no templates and no reference to any specific archive implementation.  That is, they will
-only have to be compiled once for all archive implementations.  The even applies to archives classes
+only have to be compiled once for all archive implementations.  This even applies to archives classes
 created in the future.
  <li>The main program <a target=demo_polymorphic_cp href="../example/demo_polymorphic.cpp"><code style="white-space: normal">demo_polymorphic.cpp</code></a>
 specifies a specific archive implementation.  
@@ -367,14 +371,15 @@ As can be seen in the
 and the header files, this implementation is just a composition of the polymorphic
 interface and the standard template driven implementation.  This composition is
 accomplished by the templates
-<a target=polymorphic_iarchive_dispatch_hpp href="../../../boost/archive/detail/polymorphic_iarchive_dispatch.hpp"><code style="white-space: normal">polymorphic_iarchive_dispatch.hpp</code></a>
+<a target=polymorphic_iarchive_route_hpp href="../../../boost/archive/detail/polymorphic_iarchive_route.hpp"><code style="white-space: normal">polymorphic_iarchive_route.hpp</code></a>
 and
-<a target=polymorphic_oarchive_dispatch_hpp href="../../../boost/archive/detail/polymorphic_oarchive_dispatch.hpp"><code style="white-space: normal">polymorphic_oarchive_dispatch.hpp</code></a>.
+<a target=polymorphic_oarchive_route_hpp href="../../../boost/archive/detail/polymorphic_oarchive_route.hpp"><code style="white-space: normal">polymorphic_oarchive_route.hpp</code></a>
+which redirect calls to the polymorphic archives to the specific archive.
 As these contain no code specific to the particular implementation archive, they can be used to create
 a polymorphic archive implementation from any functioning templated archive implementation.
 <p>
 As a convenience, small header files have been included which contain 
-<code style="white-space: normal">typedef</code> for polymorphic implementation for each corresponding
+a <code style="white-space: normal">typedef</code> for a polymorphic implementation for each corresponding
 templated one.  For example, the headers
 <a target=polymorphic_text_iarchive_hpp href="../../../boost/archive/polymorphic_text_iarchive.hpp"><code style="white-space: normal">polymorphic_text_iarchive.hpp</code></a>
 and
@@ -385,16 +390,29 @@ of the standard text archive classes
 and
 <a target=text_oarchive_hpp href="../../../boost/archive/text_oarchive.hpp"><code style="white-space: normal">text_oarchive.hpp</code></a>
 respectively. All included polymorphic archives use the same naming scheme.
+
 <h4>Usage</h4>
 Polymorphic archives address the issues raised above regarding templated implementation.
 That is, there is no replicated code, and no recompilation for new archives.  This will
 result in smaller executables for program which use more than one type of archive, and 
-smaller DLLS. There is a
-penalty for calling archive functions through a virtual function dispatch table and there
-is no possibility for a compiler to <code style="white-space: normal">inline</code> archive functions.  This will result
-in a detectable degradation in performance for saving and loading archives.
+smaller DLLS. There is a penalty for calling archive functions through a virtual function 
+dispatch table and there is no possibility for a compiler to <code style="white-space: normal">inline</code> 
+archive functions.  This will result in a detectable degradation in performance for 
+saving and loading archives.
 <p>
-The main utility of polymorphic archives will be to permit the buiding of class DLLs that will
+Note that the concept of polymorphic archives is fundamentally incompatible with the
+serialization of new types that are marked "primitive" by the user with:
+<pre><code> 
+BOOST_CLASS_IMPLEMENTATION(my_primitive_type, boost::serialization::primitive_type)
+</code></pre>
+
+Code to implement serialization for these types is instantiated "on the fly" in the user's program.
+But this conflicts with the whole purpose of the polymorphic archive. An attempt to
+serialize such a primitive type will result in a compilation error since the common polymorphic
+interface is static and cannot instantiate code for a new type.
+
+<p>
+The main utility of polymorphic archives will be to permit the building of class DLLs that will
 include serialization code for all present and future archives with no redundant code.
 <hr>
 <p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2002-2004. 
@@ -29,26 +29,26 @@
 <h4>Notation</h4>
 In the following descriptions
 <ul>
-  <li><code>SA</code> is an type modeling the <a href="#saving_interface">Saving Archive Concept</a>
+  <li><code>SA</code> is an type modeling the <a href="#saving_interface">Saving Archive Concept</a>.
  <li><code>sa</code> is an instance of type SA.
-  <li><code>LA</code> is an type modeling the <a href="#loading_interface">Loading Archive Concept</a>
+  <li><code>LA</code> is an type modeling the <a href="#loading_interface">Loading Archive Concept</a>.
  <li><code>la</code> is an instance of type LA.
-  <li><code>T</code> is an <a href="serialization.html"><strong>Serializable</strong></a> Type
-  <li><code>x</code> is an instance of type T Type</li>.
-  <li><code>u,v</code> is a pointer to a an instance of type T
+  <li><code>T</code> is an <a href="serialization.html"><strong>Serializable</strong></a> Type.
+  <li><code>x</code> is an instance of type T Type.
+  <li><code>u,v</code> is a pointer to a an instance of type T.
  <li><code>count</code> is an instance of a type that can be converted to <code>std::size_t</code>.
 </ul>
 <h4><a name="saving_interface">Saving Archive Concept</a></h4>
 <h4>Associated Types</h4>
 Intuitively, a type modeling this concept will generate a sequence of bytes
-correpsonding to an arbitrary set of C++ data structures.  Each type modeling the
+corresponding to an arbitrary set of C++ data structures.  Each type modeling the
 Saving Archive concept (SA) may be associated with another type modeling the
 <a href="#loading_interface">Loading Archive Concept</a>(LA).  
 This associated type will perform the inverse operation.  
 That is, given a sequence of bytes generated by SA, it will generate a set of 
-C++ data structures the is equivalent to the original.  
+C++ data structures that is equivalent to the original.  
 The notion of equivalence is defined by the implementations of the pair of archives and the
-way the data is are rendered <a href="serialization.html">serializable</a>.
+way the data are rendered <a href="serialization.html">serializable</a>.
 <p>
 <h4>Valid Expressions</h4>
 <dl>
@@ -102,7 +102,7 @@ way the data is are rendered <a href="serialization.html">serializable</a>.
    For more information, see <a target="detail" href="implementation.html#tempatesyntax">Template Invocation syntax</a>
  </dd>
  <dt><h4><code>
-    sa.library_version()
+    sa.get_library_version()
  </code></h4></dt>
  <dd>
    Returns an unsigned integer containing the current version number of the serialization
@@ -112,6 +112,14 @@ way the data is are rendered <a href="serialization.html">serializable</a>.
    might be conditioned on the library version to make sure that libraries created by 
    previous versions of the library can still be read.
  </dd>
+  <dt><h4><code>
+    sa.get_helper&lt;Helper&gt;(void * const helper_instance_id = 0)
+  </code></h4></dt>
+  <dd>
+    See <code>la.get_helper&lt;Helper&gt;(void * const helper_instance_id = 0)</code>
+    below.
+  </dd>
+
 </dl>

 <h4><a name="loading_interface">Loading Archive Concept</a></h4>
@@ -172,7 +180,7 @@ equivalent to the original.
    For more information, see <a target="detail" href="implementation.html#tempatesyntax">Template Invocation syntax</a>
  </dd>
  <dt><h4><code>
-    la.library_version()
+    la.get_library_version()
  </code></h4></dt>
  <dd>
    Returns an unsigned integer containing the version number of the serialization
@@ -182,6 +190,24 @@ equivalent to the original.
    The code that loads collections might be conditioned on the library version to make 
    sure that libraries created by previous versions of the library can still be read.
  </dd>
+  <dt><h4><code>
+    la.get_helper&lt;Helper&gt;(void * const helper_instance_id)
+  </code></h4></dt>
+  <dd>
+    Some otherwise unserializable types can be made serializable by inclusion of
+    a helper object.  The iconic example of this is shared_ptr which needs this
+    helper object to keep track of previously loaded shared_ptr instances so they
+    can be "matched up" with subsequently loaded ones.
+    The first time <code  style="white-space: normal">la.get_helper&lt;Helper&gt;(void * const helper_instance_id)</code>
+    is invoked for a given helper_instance_id, <code  style="white-space: normal">Helper</code>, a default-constructed
+    <code style="white-space: normal">Helper</code> object is created, attached to
+    <code  style="white-space: normal">la</code> and a reference to it is returned. Subsequent
+    invocations of <code style="white-space: normal">la.get_helper&lt;Helper&gt;(void * const helper_instance_id)</code> with the same id value return
+    a reference to the formerly constructed object. All objects created in this manner are
+    destroyed  upon <code style="white-space: normal">la</code> destruction time. The purpose
+    of helper objects is discussed in
+    <a href="special.html#helpersupport">Special Considerations - Helper Support</a>.
+  </dd>
  <dt><h4><code>
    la.reset_object_address(v, u)
  </code></h4></dt>
@@ -190,8 +216,8 @@ equivalent to the original.
    moved to address v.
    <p>
    When an object is loaded to a temporary variable and later moved to another location,
-    This function must be called in order communicate this fact.  This is permits the
-    the archive to properly implement object tracking.  Object tracking is required in order
+    this function must be called in order communicate this fact.  This permits the
+    archive to properly implement object tracking.  Object tracking is required in order
    to correctly implement serialization of pointers to instances of derived classes.
  </dd>  
  <dt><h4><code>
@@ -206,7 +232,7 @@ equivalent to the original.

 There are archives based on text, binary and XML file
 formats but all have the above interface.  Given that all archives present
-the same public interface, specifcation of serialization is exactly the same
+the same public interface, specification of serialization is exactly the same
 for all archives.  Archive classes have other members not mentioned here.
 However they are related to the internal functioning of the library and
 are not meant to be called by users of an archive.  Implementation of new
@@ -215,7 +241,7 @@ archives is discussed in

 <p>
 The existence of the <code style="white-space: normal">&lt;&lt;</code> 
-and <code style="white-space: normal">&gt;&gt;</code> suggest
+and <code style="white-space: normal">&gt;&gt;</code> suggests
 a relationship between archives and C++ i/o streams. <strong>Archives are not 
 C++ i/o streams</strong>. All the archives included with this system take a stream
 as an argument in the constructor and that stream is used for output or input.
@@ -224,7 +250,7 @@ archive interface. It just turns out that the archives written so far have
 found it useful to base their implementation on streams.

 <h3><a name="archive_models">Archive Models</a></h3>
-This library includes a various implementation of the Archive concept.
+This library includes various implementations of the Archive concept.

 An archive is defined by two complementary classes.  One is for saving data while
 the other is for loading it.
@@ -266,7 +292,7 @@ included in the code module containing the serialization code.

 </code></pre>

-All of these archives implement the same inteface. Hence, it should suffice to describe only one
+All of these archives implement the same interface. Hence, it should suffice to describe only one
 of them in detail.  For this purpose we will use the text archive.


@@ -277,7 +303,7 @@ namespace archive {
 enum archive_flags {
    no_header = 1,          // suppress archive header info
    no_codecvt = 2,         // suppress alteration of codecvt facet
-    no_xml_tag_checking = 4 // suppress checking of xml tags - igored on saving
+    no_xml_tag_checking = 4 // suppress checking of xml tags - ignored on saving
 };

 } // archive
@@ -293,7 +319,7 @@ class text_oarchive : ...
    ...
 public:
    ... // implementation of the <strong>Saving Archive</strong> concept
-    text_oarchive(std::ostream & os, unsigned int flags = 0);
+    text_oarchive(std::ostream &amp; os, unsigned int flags = 0);
    ~text_oarchive();
 };

@@ -304,10 +330,10 @@ public:
 <dl>

 <dt><h4><code>
-text_oarchive(std::ostream & os, unsigned int flags = 0);
+text_oarchive(std::ostream &amp; os, unsigned int flags = 0);
 </code></h4></dt>
 <dd>
-Contructs an archive given an open <code style="white-space: normal">stream</code> as 
+Constructs an archive given an open <code style="white-space: normal">stream</code> as 
 an argument and optional flags. For most applications there will be no need to use flags. 
 Flags are defined by <code style="white-space: normal">enum archive_flags</code> enumerator. 
 Multiple flags can be combined with the <code style="white-space: normal">|</code> operator. 
@@ -317,7 +343,7 @@ output with initial data which helps identify them as archives produced by this
 This permits a more graceful handling of the case where an attempt is made to load an archive
 from an invalid file format. In addition to this, each type of archive might have 
 its own information.  For example, native binary archives include information about 
-sizes of native types and endianess to gracefully handle the case where it has been
+sizes of native types and endianness to gracefully handle the case where it has been
 erroneously assumed that such an archive is portable across platforms.  In some cases, 
 where this extra overhead might be considered objectionable, it can be suppressed with the
 <code style="white-space: normal">no_header</code> flag.
@@ -339,7 +365,7 @@ tags, use <code style="white-space: normal">no_xml_tag_checking</code> flag.
 <dd>
 Destructor for an archive.  This should be called before the stream is
 closed.  It restores any altered stream facets to their state before the
-the archive was opened.
+archive was opened.
 </dd>

 </dl>
@@ -353,7 +379,7 @@ class text_iarchive : ...
    ...
 public:
    ... // implementation of the <strong>Loading Archive</strong> concept
-    text_iarchive(std::istream & is, unsigned int flags = 0);
+    text_iarchive(std::istream &amp; is, unsigned int flags = 0);
    ~text_iarchive();
 };

@@ -365,10 +391,10 @@ public:
 <dl>

 <dt><h4><code>
-text_iarchive(std::istream & is, unsigned int flags = 0);
+text_iarchive(std::istream &amp; is, unsigned int flags = 0);
 </code></h4></dt>
 <dd>
-Contructs an archive given an open <code style="white-space: normal">stream</code> as 
+Constructs an archive given an open <code style="white-space: normal">stream</code> as 
 an argument and optional flags. If flags are used, they should be the same
 as those used when the archive was created. Function and usage of flags is described
 above.
@@ -379,7 +405,7 @@ above.
 </code></h4></dt>
 <dd>
 Destructor for an archive.  This should be called before the stream is
-closed.  It restores any altered stream facets to thier state before the
+closed.  It restores any altered stream facets to their state before the
 the archive was opened.
 </dd>
 </dl>
@@ -392,22 +418,22 @@ to the common class interface described above, they include the following
 constructors:
 <dl>
 <dt><h4><code>
-binary_oarchive(std::streambuf & bsb, unsigned int flags = 0);
+binary_oarchive(std::streambuf &amp; bsb, unsigned int flags = 0);
 </code></h4></dt>
 and
 <dt><h4><code>
-binary_iarchive(std::streambuf & bsb, unsigned int flags = 0);
+binary_iarchive(std::streambuf &amp; bsb, unsigned int flags = 0);
 </code></h4></dt>
 </dl>

 <h3><a name="exceptions">Exceptions</h3>
 All of the archive classes included may throw exceptions.  The list of exceptions that might
-be throw can be found in section <a target="detail" href="exceptions.html">Archive Exceptions</a>
+be thrown can be found in section <a target="detail" href="exceptions.html">Archive Exceptions</a>
 of this documentation. 

 <h3><a name="charactersets">Character Sets</h3>
 This library includes two archive classes for XML. The wide character
-version (<code style="white-space: normal">xml_w?archive</code>) renders it output as UTF-8 which can
+version (<code style="white-space: normal">xml_w?archive</code>) renders its output as UTF-8 which can
 handle any wide character without loss of information. 
 <code style="white-space: normal">std::string</code> data is converted from multi-byte format to wide
 character format using the current <code style="white-space: normal">
@@ -36,22 +36,23 @@ http://www.boost.org/LICENSE_1_0.txt)
    <li>Allen Holub, "Roll Your Own Persistence", <u>Microsoft
    Systems Journal</u> vol 11, no 6 Jun 1996
    <a name="4"></a>
+    <li><a href="www.codefarms.com">Code Farms, Inc.</a>
    <li>Tasos Kontogiorgos &amp; Michael Kim, "A C++
    Template-Based Application Architecture", <u>C++ Report</u>
    <a name="5"></a>
    <li>Scott Meyers, <u>Effective C++</u>, Addison-Wesley, 1992
    <a name="6"></a>
-    <li>Bjarne Stroustrup, <u>The C++ Programming Langage</u>, Addison-Wesley, 1997
+    <li>Bjarne Stroustrup, <u>The C++ Programming Language</u>, Addison-Wesley, 1997
    <a name="7"></a>
    <li>Alexandrescu, Andrei, <u>Modern C++ Design</u>, Addison-Wesley, 2001
    <a name="8"></a>
-    <li>Jm Hyslop, and Herb Sutter, "Factory Redux, Part2",
+    <li>Jim Hyslop, and Herb Sutter, "Factory Redux, Part2",
    <u>C/C++ User's Journal</u>, vol 21, No. 8, August 2003
    <a name="9"></a>
    <li>David Vandevoorde and Nicolai M. Josuttis,
    <u>C++ Templates - The Complete Guide</u>, Addison-Wesley, 2003
    <a name="10"></a>
-    <li>Herb Sutter, "Pimples--Beauty Marks You Can Depend On",
+    <li>Herb Sutter, "Pimpls--Beauty Marks You Can Depend On",
    <u>C++ Report</u>, from <u>More C++ Gems</u>, Cambridge University Press, 2000
    <a name="11"></a>
    <li>James Coplien, "Curiously Recurring Template Patterns",
@@ -62,7 +63,7 @@ http://www.boost.org/LICENSE_1_0.txt)
    <a name="13"></a>
    <li>Stephan Beal, "s11n serialization library", <a href="http://www.s11n.net">www.s11n.net</a>
    <a name="14"></a>
-    <li>Vandervoorde and Josuttis, <b>C++ Templates - A Complete Guide</b>, Addison-Wesley, 2003</a>
+    <li>Vandevoorde and Josuttis, <b>C++ Templates - A Complete Guide</b>, Addison-Wesley, 2003</a>
 </ol>
 <hr>
 <p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2002-2004. 
@@ -1,4 +1,4 @@
-<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <!--
 (C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com . 
 Use, modification and distribution is subject to the Boost Software
@@ -29,136 +29,136 @@ http://www.boost.org/LICENSE_1_0.txt)
 <pre><code>


-basic_iarchive <a href="../../../boost/archive/detail/basic_iarchive.hpp">-></a>
+basic_oarchive <a href="../../../boost/archive/detail/basic_oarchive.hpp">-&gt;</a>
      |
      |
-      |      interface_iarchive&lt;text_iarchive&gt; <a href="../../../boost/archive/detail/interface_iarchive.hpp">-></a>
+      |      interface_oarchive&lt;text_oarchive&gt; <a href="../../../boost/archive/detail/interface_oarchive.hpp">-&gt;</a>
      |                     /
      |                   /
      |        _________/
      |      /
      |    /
      |  /
-common_iarchive&lt;text_iarchive&gt; <a href="../../../boost/archive/detail/common_iarchive.hpp">-></a>
+common_oarchive&lt;text_oarchive&gt; <a href="../../../boost/archive/detail/common_oarchive.hpp">-&gt;</a>
      |
      |
-<font color="blue">basic_text_iarchive&lt;text_iarchive&gt;</font> <a href="../../../boost/archive/basic_text_iarchive.hpp">-></a>
+<font color="blue">basic_text_oarchive&lt;text_oarchive&gt;</font> <a href="../../../boost/archive/basic_text_oarchive.hpp">-&gt;</a>
      |
      |
-      |     <font color="blue">basic_text_iprimitive&lt;basic_istream&gt;</font> <a href="../../../boost/archive/basic_text_iprimitive.hpp">-></a>
+      |     <font color="blue">basic_text_oprimitive&lt;basic_ostream&gt;</font> <a href="../../../boost/archive/basic_text_oprimitive.hpp">-&gt;</a>
      |                    /
      |                  /
-      |       _________/                  interface_iarchive&lt;polymorphic_iarchive&gt; <a href="../../../boost/archive/detail/interface_iarchive.hpp">-></a>
+      |       _________/                  interface_oarchive&lt;polymorphic_oarchive&gt; <a href="../../../boost/archive/detail/interface_oarchive.hpp">-&gt;</a>
      |     /                                                |
      |   /                                                  |
      | /                                                    |
-<font color="blue">text_iarchive_impl&lt;text_iarchive&gt;</font> <a href="../../../boost/archive/text_iarchive.hpp">-></a>                 <font color="red">polymorphic_iarchive</font> <a href="../../../boost/archive/polymorphic_iarchive.hpp">-></a>
+<font color="blue">text_oarchive_impl&lt;text_oarchive&gt;</font> <a href="../../../boost/archive/text_oarchive.hpp">-&gt;</a>              polymorphic_oarchive_impl <a href="../../../boost/archive/polymorphic_oarchive.hpp">-&gt;</a>
      | \                                                    |
      |   \                                                  |
-      |     \_____________________________________           |
+      |     \_____________________________________    <font color="red">polymorphic_oarchive</font> <a href="../../../boost/archive/polymorphic_oarchive.hpp">-&gt;</a>
      |                                           \         /
      |                                             \     /
      |                                               \ /  
-<font color="red">text_iarchive</font> <a href="../../../boost/archive/text_iarchive.hpp">-></a>                 polymorphic_iarchive_dispatch&lt;text_iarchive_impl&lt;text_iarchive&gt; &gt; <a href="../../../boost/archive/detail/polymorphic_iarchive_dispatch.hpp">-></a>
+<font color="red">text_oarchive</font> <a href="../../../boost/archive/text_oarchive.hpp">-&gt;</a>                 polymorphic_oarchive_route&lt;text_oarchive_impl&lt;text_oarchive&gt; &gt; <a href="../../../boost/archive/detail/polymorphic_oarchive_route.hpp">-&gt;</a>
                                                       |
                                                       |
                                                       |
-                                             <font color="red">polymorphic_text_iarchive</font> <a href="../../../boost/archive/polymorphic_text_iarchive.hpp">-></a>
+                                             <font color="red">polymorphic_text_oarchive</font> <a href="../../../boost/archive/polymorphic_text_oarchive.hpp">-&gt;</a>


 </code></pre>
-This diagram shows the relationship between the various classes that implement loading (input
-serialization) for text files.  The hierachy and organization is identical for saving and for
+This diagram shows the relationship between the various classes that implement saving (output
+serialization) for text archives.  The hierarchy and organization is similar for loading and for
 other types of archives as well.  In the diagram, classes written in <font color="blue">blue</font> 
-implement loading for a given archive type. (in this case its text archives).
-Users include classes in <font color="red">red</font> to load their data from a partcular
+implement saving for a given archive type. (in this case it's text archives).
+Users include classes in <font color="red">red</font> to save their data from a particular
 type of archive.  Other classes whose names are in black implement the library and should
 never change.  They are in <code>namespace boost::archive::detail</code>
 <dl>
  <dt><code>
-  <a href="../../../boost/archive/detail/basic_iarchive.hpp">basic_iarchive</a>
+  <a href="../../../boost/archive/detail/basic_oarchive.hpp">basic_oarchive</a>
  </code></dt>
  <dd>
  Implements the core library functions for class export, versioning, and object tracking.  It is compiled
  into the library as it has no template parameters.
  </dd>
  <p><dt><code>
-  <a href="../../../boost/archive/detail/interface_iarchive.hpp">interface_iarchive&lt;text_iarchive&gt;</a>
+  <a href="../../../boost/archive/detail/interface_oarchive.hpp">interface_oarchive&lt;text_oarchive&gt;</a>
  </code></dt>
  <dd>
  A class that declares the standard archive interface.  This has been factored out so that it
-  can be used as a base class for <code style="white-space: normal">polymorphic_iarchive</code>
+  can be used as a base class for <code style="white-space: normal">polymorphic_oarchive</code>
  as well as for archive implementations.
  
  <p><dt><code>
-  <a href="../../../boost/archive/detail/common_iarchive.hpp">common_iarchive&lt;text_iarchive&gt;</a>
+  <a href="../../../boost/archive/detail/common_oarchive.hpp">common_oarchive&lt;text_oarchive&gt;</a>
  </code></dt>
  <dd>
  The function of this class is to make the connection between the virtual function
-  interface used by <code>basic_iarchive</code> and the template interface used by archive
+  interface used by <code>basic_oarchive</code> and the template interface used by archive
  class implementations.
  
  <p><dt><code>
-  <a href="../../../boost/archive/basic_text_iarchive.hpp">basic_text_iarchive&lt;text_iarchive&gt;</a>
+  <a href="../../../boost/archive/basic_text_oarchive.hpp">basic_text_oarchive&lt;text_oarchive&gt;</a>
  </code></dt>
  <dd>
-  Implements the basic functionality for simple text archives.  The primitive load functions have been 
+  Implements the basic functionality for simple text archives.  The primitive save functions have been 
  factored out so it can be used in other text based archives like XML archives.
  
  <p><dt><code>
-  <a href="../../../boost/archive/basic_text_iprimitive.hpp">basic_text_iprimitive&lt;basic_istream&gt;</a>
+  <a href="../../../boost/archive/basic_text_oprimitive.hpp">basic_text_oprimitive&lt;basic_ostream&gt;</a>
  </code></dt>
  <dd>
-  Implements the save overloads for all primitive types.  This is a template with a parameter
+  Implements the save oversaves for all primitive types.  This is a template with a parameter
  which describes the stream.
  
  <p><dt><code>
-  <a href="../../../boost/archive/text_iarchive.hpp">text_iarchive_impl&lt;text_iarchive&gt;</a>                 
+  <a href="../../../boost/archive/text_oarchive.hpp">text_oarchive_impl&lt;text_oarchive&gt;</a>                 
  </code></dt>
  <dd>
  Inherits from the above two classes to implement text archives.
  </dd>

  <p><dt><code>
-  <a href="../../../boost/archive/text_iarchive.hpp">text_iarchive</a>
+  <a href="../../../boost/archive/text_oarchive.hpp">text_oarchive</a>
  </code></dt>
  <dd>
-  This is just a short hand for <code style="white-space: normal">text_iarchive_impl&lt;text_iarchive&gt;</code> .
+  This is just a short hand for <code style="white-space: normal">text_oarchive_impl&lt;text_oarchive&gt;</code> .
  We can't use <code style="white-space: normal">typedef</code> because  a 
  <code style="white-space: normal">typedef</code> can't refer to it self in its definition.  
  This is the class name that is used to serialize to a text archive.
  </dd>

  <p><dt><code>
-  <a href="../../../boost/archive/detail/interface_iarchive.hpp">interface_iarchive&lt;polymorphic_iarchive&gt;</a>
+  <a href="../../../boost/archive/detail/interface_oarchive.hpp">interface_oarchive&lt;polymorphic_oarchive&gt;</a>
  </code></dt>
  <dd>
  Same template as above.  However, this time the Archive parameter refers to the polymorphic archive
  with a virtual function interface rather than that the template interface that
-  <code style="white-space: normal">common_iarchive</code> uses.
+  <code style="white-space: normal">common_oarchive</code> uses.
  
  <p><dt><code>
-  <a href="../../../boost/archive/polymorphic_iarchive.hpp">polymorphic_iarchive</a>
+  <a href="../../../boost/archive/polymorphic_oarchive.hpp">polymorphic_oarchive</a>
  </code></dt>
  <dd>
-  A class with a list of virtual <code style="white-space: normal">load(T &t)</code>
+  A class with a list of virtual <code style="white-space: normal">save(T &amp;t)</code>
  for all primitive types T. This is the class that is used to do pre-compile serialization of classes
  for all archives present and future.
  
  <p><dt><code>
-  <a href="../../../boost/archive/detail/polymorphic_iarchive_dispatch.hpp">polymorphic_iarchive_dispatch&lt;text_iarchive_impl&lt;text_iarchive&gt; &gt;</a>
+  <a href="../../../boost/archive/detail/polymorphic_oarchive_route.hpp">polymorphic_oarchive_route&lt;text_oarchive_impl&lt;text_oarchive&gt; &gt;</a>
  </code></dt>
  <dd><p>
-  This class implements the <code style="white-space: normal">polymorphic_iarchive</code> in terms of a specific 
-  concrete class.  Virtual function calls are forwarded to the implementing class.  In this example, 
-  that implementing class would be text_iarchive_impl.
+  This class implements the <code style="white-space: normal">polymorphic_oarchive</code> in terms of a specific 
+  concrete class.  Virtual function calls are routed to the implementing class.  In this example, 
+  that implementing class would be text_oarchive_impl.
  
  <p><dt><code>
-  <a href="../../../boost/archive/polymorphic_text_iarchive.hpp">polymorphic_text_iarchive</a>
+  <a href="../../../boost/archive/polymorphic_text_oarchive.hpp">polymorphic_text_oarchive</a>
  </code></dt>
  <dd>
-  this is just a typedef so we can write polymorphic_text_archive rather than
-  <code style="white-space: normal">polymorphic_iarchive_dispatch&lt;text_iarchive_impl&lt;text_iarchive&gt; &gt;</code>
+  this is just a typedef so we can write <code style="white-space: normal">polymorphic_text_archive</code> rather than
+  <code style="white-space: normal">polymorphic_oarchive_route&lt;text_oarchive_impl&lt;text_oarchive&gt; &gt;</code>
  
 </dl>
 <hr>
@@ -28,7 +28,7 @@ width="277" height="86"> <br clear="all">
 <a name="sec:utf8-codecvt-facet-class"></a>


-<h1>UTF-8 Codecvt Facet</h1>
+<h1><code>utf8_codecvt_facet</code></h1>


 <pre>
@@ -42,7 +42,7 @@ template&lt;
 <h2>Rationale</h2>


-    UTF-8 is a method of encoding Unicode text in environments where 
+    UTF-8 is a method of encoding Unicode text in environments
    where data is stored as 8-bit characters and some ascii characters 
    are considered special (i.e. Unix filesystem filenames) and tend
    to appear more commonly than other characters.  While
@@ -88,7 +88,7 @@ template&lt;
 <h2>Requirements</h2>

    <tt>utf8_codecvt_facet</tt> defaults to using <tt>char</tt> as
-    it's external data type and <tt>wchar_t</tt> as it's internal
+    its external data type and <tt>wchar_t</tt> as its internal
    datatype, but on some architectures <tt>wchar_t</tt> is
    not large enough to hold UCS-4 characters.  In order to use
    another internal type.You must also specialize <tt>std::codecvt</tt>
@@ -83,220 +83,261 @@ function initialize() {
 <img src="dot.gif" onclick="collapse_all()">Collapse All
 -->
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-      <dt><img style="display:none" src="dot.gif"><a target="detail"  href="release.html#difference_1_34">Differences from version 1.34</a></dt>
-      <dt><img style="display:none" src="dot.gif"><a target="detail"  href="release.html#todo">Pending Issues</a></dt>
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+<dl class="page-index">
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+
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+      </dl></div></dd>
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+        <dt><img style="display:none" src="dot.gif"><a target="detail" href="exceptions.html#xml_archive_parsing_error"><code>xml_archive_parsing_error</code></a>
+        <dt><img style="display:none" src="dot.gif"><a target="detail" href="exceptions.html#xml_archive_tag_mismatch"><code>xml_archive_tag_mismatch</code></a>
+        <dt><img style="display:none" src="dot.gif"><a target="detail" href="exceptions.html#xml_archive_tag_name_error"><code>xml_archive_tag_name_error</code></a>
+      </dl></div></dd>
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+    <dd><div id="archive_reference_detail"><dl class="page-index">
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+      <dt><img style="display:none" src="dot.gif"><a target="detail" href="archive_reference.html#implementation">More Useful Archive Classes</a>
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+      <dt><img style="display:none" src="dot.gif"><a target="detail" href="archive_reference.html#polymorphic">Polymorphic Archives</a>
+    </dl></div></dd>
+  </dl></div></dd>
+  <dt><img style="display:none" src="plus.gif" id="implementation"><a target="detail" href="implementation.html">Implementation Notes</a>
+  <dd><div id="implementation_detail"><dl class="page-index">
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+      <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#gcc3x">GCC 3.X,4.X</a>
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+    </dl></div></dd>
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+      </dl></div></dd>
+    </dl></div></dd>
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+  <dt><img style="display:none" src="plus.gif" id="case_studies">Case Studies
+  <dd><div id="case_studies_detail"><dl class="page-index">
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="shared_ptr.html">Template serialization - <code>shared_ptr&lt;class T&gt;</code></a>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="shared_ptr2.html"><code>shared_ptr&lt;class T&gt;</code>Revisited</a>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="pimpl.html">PIMPL</a>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="private_base.html">Private Base Classes</a>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="simple_log.html">A Simple Logging Archive Class</a>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="derivation.html">Derivation from an Existing Archive Class</a>
+  </dl></div></dd>
+  <dt><img style="display:none" src="plus.gif" id="otherclasses">Other Classes
+  <dd><div id="otherclasses_detail"><dl class="page-index">
+    <dt><img style="display:none" src="plus.gif" id="extended_type_info"><a target="detail" href="extended_type_info.html"><code>extended_type_info</code></a>
+    <dd><div id="extended_type_info_detail"><dl class="page-index">
+      <dt><img style="display:none" src="dot.gif"><a target="detail" href="extended_type_info.html#motivation">Motivation</a>
+      <dt><img style="display:none" src="dot.gif"><a target="detail" href="extended_type_info.html#runtime">Runtime Interface</a>
+      <dt><img style="display:none" src="dot.gif"><a target="detail" href="extended_type_info.html#requirements">Requirements</a>
+      <dt><img style="display:none" src="dot.gif"><a target="detail" href="extended_type_info.html#models">Models</a>
+    </dl></div></dd>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="void_cast.html"><code>void_cast</code></a>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="codecvt.html"><code>utf8_codecvt_facet</code></a>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="strong_typedef.html"><code>BOOST_STRONG_TYPEDEF</code></a>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="state_saver.html"><code>state_saver</code></a>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="dataflow.html">Dataflow Iterators</a>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="smart_cast.html"><code>smart_cast</code></a>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="static_warning.html"><code>BOOST_STATIC_WARNING</code></a>
+    <dt><img style="display:none" src="plus.gif" id="singleton"><a target="detail" href="singleton.html"><code>singleton</code></a>
+    <dd><div id="singleton_detail"><dl class="page-index">
+      <dt><img style="display:none" src="dot.gif"><a target="detail" href="singleton.html#motivation">Motivation</a>
+      <dt><img style="display:none" src="dot.gif"><a target="detail" href="singleton.html#features">Features</a>
+      <dt><img style="display:none" src="dot.gif"><a target="detail" href="singleton.html#classinterface">Class Interface</a>
+      <dt><img style="display:none" src="dot.gif"><a target="detail" href="singleton.html#requirements">Requirements</a>
+      <dt><img style="display:none" src="dot.gif"><a target="detail" href="singleton.html#examples">Examples</a>
+      <dt><img style="display:none" src="dot.gif"><a target="detail" href="singleton.html#multithreading">Multi-Threading</a>
+    </dl></div></dd>
+  </dl></div></dd>
+  <!--
+  <dt><img style="display:none" src="dot.gif"><a target="detail" href="configuration.html">Configuration Information</a></dt>
+    -->
+  <dt><img style="display:none" src="dot.gif"><a target="detail" href="faq.html">Tips and Tricks</a>
+  <dt><img style="display:none" src="plus.gif" id="rationale"><a target="detail" href="rationale.html">Rationale</a></dt>
+  <dd><div id="rationale_detail"><dl class="page-index">
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="rationale.html#serialization">The term "serialization" is preferred to "persistence"</a></dt>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="rationale.html#archives">Archives are not streams</a></dt>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="rationale.html#typeid"><code style="white-space: normal">typeid</code> information is not included in archives</a></dt>
+  </dl></div></dd>
+
+  <dt><img style="display:none" src="plus.gif" id="todo"><a target="detail" href="todo.html">To Do</a></dt>
+  <dd><div id="todo_detail"><dl class="page-index">
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="todo.html#portablebinaryarchive">Portable Binary Archive</a></dt>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="todo.html#performancetesting">Performance Testing and Profiling</a></dt>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="todo.html#backversioning">Back Versioning</a></dt>
+    <dt><img style="display:none" src="dot.gif"><a target="detail" href="todo.html#nortti">Environments without RTTI</a></dt>
+
+    <dt><img style="display:none" src="plus.gif" id="newcasestudies"><a target="detail" href="new_case_studies.html">Proposed Case Studies</a></dt>
+    <dd><div id="newcasestudies_detail"><dl class="page-index">
+      <dt><img style="display:none" src="dot.gif"><a target="detail" href="new_case_studies.html#functionobject">Serializing a Function Object</a></dt>
+      <dt><img style="display:none" src="dot.gif"><a target="detail" href="new_case_studies.html#archiveadaptor">Archive Adaptors</a></dt>
+      <dt><img style="display:none" src="dot.gif"><a target="detail" href="new_case_studies.html#archivehelper">Archive Helpers</a></dt>
    </dl></div></dd>

-    <dt><img style="display:none" src="plus.gif" id="reference"><a target="detail" href="reference.html">Reference</a></dt>
-    <dd><div id="reference_detail"><dl class="page-index"> 
-      <dt><img style="display:none" src="plus.gif" id="archive_concept"><a target="detail" href="archives.html">Archive Concepts</a>
-      <dd><div id="archive_concept_detail"><dl class="page-index">
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="archives.html#saving_interface">Saving Archive Concept</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="archives.html#loading_interface">Loading Archive Concept</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="archives.html#archive_models">Archive Models</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="archives.html#exceptions">Exceptions</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="archives.html#charactersets">Character Sets</a>
-      </dl></div></dd>
-      <dt><img style="display:none" src="plus.gif" id="serialization"><a target="detail" href="serialization.html">Serializable Concept</a>
-      <dd><div id="serialization_detail"><dl class="page-index">
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="serialization.html#primitiveoperators">Primitive Types</a>
-        <dt><img style="display:none" src="dot.gif" id="class"><a target="detail" href="serialization.html#classoperators">Class Types</a>
-        <dd><div id="class_detail"><dl class="page-index">
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="serialization.html#member">Member Function</a>
-          <dt><img style="display:none" src="plus.gif" id="splitfree"><a target="detail" href="serialization.html#free">Free Function</a>
-          <dd><div id="splitfree_detail"><dl class="page-index">
-            <dt><img style="display:none" src="dot.gif"><a target="detail" href="serialization.html#namespaces">Namespaces for Free Function Overrides</a>
-          </dl></div></dd>
-          <dt><img style="display:none" src="plus.gif" id="members"><a target="detail" href="serialization.html#classmembers">Class Members</a>
-          <dd><div id="members_detail"><dl class="page-index">
-            <dt><img style="display:none" src="dot.gif"><a target="detail" href="serialization.html#base">Base Classes</a>
-            <dt><img style="display:none" src="dot.gif"><a target="detail" href="serialization.html#const"><code>const</code> Members</a>
-            <dt><img style="display:none" src="dot.gif"><a target="detail" href="serialization.html#templates">Templates</a>
-          </dl></div></dd>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="serialization.html#versioning">Versioning</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="serialization.html#splitting">Splitting <code>serialize</code> into <code>save/load</code></a>
-        </dl></div></dd>
-        <dt><img style="display:none" src="plus.gif" id="pointers"><a target="detail" href="serialization.html#pointeroperators">Pointers</a>
-        <dd><div id="pointers_detail"><dl class="page-index">
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="serialization.html#constructors">Non-Default Constructors</a>
-          <dt><img style="display:none" src="plus.gif" id="derivedpointers"><a target="detail" href="serialization.html#derivedpointers">Pointers to Objects of Derived Classes</a>
-          <dd><div id="derivedpointers_detail"><dl class="page-index">
-            <dt><img style="display:none" src="dot.gif"><a target="detail" href="serialization.html#registration">Registration</a>
-            <dt><img style="display:none" src="dot.gif"><a target="detail" href="serialization.html#instantiation">Instantiation</a>
-            <dt><img style="display:none" src="dot.gif"><a target="detail" href="serialization.html#selectivetracking">Selective Tracking</a>
-            <dt><img style="display:none" src="dot.gif"><a target="detail" href="serialization.html#runtimecasting">Runtime Casting</a>
-          </dl></div></dd>
-        </dl></div></dd>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="serialization.html#references">References</a>
-        <dt><img style="display:none" src="plus.gif" id="wrappers"><a target="detail" href="wrappers.html">Serialization Wrappers</a>
-        <dd><div id="wrappers_detail"><dl class="page-index">
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="wrappers.html#binaryobjects">Binary Objects</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="wrappers.html#arrays">Arrays</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="wrappers.html#strong_type"><code style="white-space: normal">strong_type</code></a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="wrappers.html#collection_size_type">Collection Sizes</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="wrappers.html#nvp">Name-Value Pairs</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="wrappers.html#composition">Composition</a>
-        </dl></div></dd>
-        <dt><img style="display:none" src="plus.gif" id="traits"><a target="detail" href="traits.html">Class Serialization Traits</a>
-        <dd><div id="traits_detail"><dl class="page-index">
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="traits.html#version">Version</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="traits.html#level">Implementation Level</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="traits.html#tracking">Object Tracking</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="traits.html#export">Export Key</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="traits.html#Abstract">Abstract</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="traits.html#typeinfo">Type Information Implementation</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="traits.html#wrappers">Wrappers</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="traits.html#templates">Template Serialization Traits</a>
-        </dl></div></dd>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="serialization.html#models">Models - Serialization Implementations Included in the Library</a>
-      </dl></div></dd>
-      <dt><img style="display:none" src="plus.gif" id="special"><a target="detail" href="special.html">Special Considerations</a>
-      <dd><div id="special_detail"><dl class="page-index">
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="special.html#objecttracking">Object Tracking</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="special.html#export">Exporting Class Serialization</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="special.html#classinfo">Class Information</a>
-        <dt><img style="display:none" src="plus.gif" id="portability"><a target="detail" href="special.html#portability">Archive Portability</a>
-        <dd><div id="portability_detail"><dl class="page-index">
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="special.html#numerics">Numerics</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="special.html#traits">Traits</a>
-        </dl></div></dd>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="special.html#binary_archives">Binary Archives</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="special.html#xml_archives">XML Archives</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="special.html#dlls">DLLS - Serialization and Runtime Linking</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="special.html#multi_threading">Multi-Threading</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="special.html#optimizations">Optimzations</a>
-        <dt><img style="display:none" src="plus.gif" id="exceptions"><a target="detail" href="exceptions.html">Archive Exceptions</a>
-        <dd><div id="exceptions_detail"><dl class="page-index">
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="exceptions.html#unregistered_class"><code>unregistered_class</code></a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="exceptions.html#invalid_signature"><code>invalid_signature</code></a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="exceptions.html#unsupported_version"><code>unsupported_version</code></a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="exceptions.html#pointer_conflict"><code>pointer_conflict</code></a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="exceptions.html#incompatible_native_format"><code>incompatible_format</code></a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="exceptions.html#array_size_too_short"><code>array_size_too_short</code></a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="exceptions.html#stream_error"><code>stream_error</code></a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="exceptions.html#invalid_class_name"><code>invalid_class_name</code></a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="exceptions.html#unregistered_cast"><code>unregistered_cast</code></a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="exceptions.html#xml_archive_parsing_error"><code>xml_archive_parsing_error</code></a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="exceptions.html#xml_archive_tag_mismatch"><code>xml_archive_tag_mismatch</code></a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="exceptions.html#xml_archive_tag_name_error"><code>xml_archive_tag_name_error</code></a>
-        </dl></div></dd>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="exception_safety.html">Exception Safety</a>
-      </dl></div></dd>
-      <dt><img style="display:none" src="plus.gif" id="archive_reference"><a target="detail" href="archive_reference.html">Archive Class Reference</a>
-      <dd><div id="archive_reference_detail"><dl class="page-index">
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="archive_reference.html#implementation">Implementation</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="archive_reference.html#usage">Usage</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="archive_reference.html#testing">Testing</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="archive_reference.html#polymorphic">Polymorphic Archives</a>
-      </dl></div></dd>
-      <dt><img style="display:none" src="plus.gif" id="implementation"><a target="detail" href="implementation.html">Implementation Notes</a>
-      <dd><div id="implementation_detail"><dl class="page-index">
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#functiontemplateordering">Partial Function Template Ordering</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#charencoding">Character Encoding</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#tempatesyntax">Template Invocation syntax</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#partialtemplatespecialization">Partial Template Specialization</a>
-        <dt><img style="display:none" src="plus.gif" id="othercompilerissues"><a target="detail" href="implementation.html#othercompilerissues">Specific Compiler/Library Issues</a>
-        <div id="othercompilerissues_detail"><dl class="page-index">
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#gcc3x">GCC 3.X,4.X</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#gcc295">GCC 2.95</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#intel80">Intel 8.0</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#vc80">Visual C++ 8.0</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#vc71">Visual C++ 7.1</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#vc70">Visual C++ 7.0</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#vc6">Visual C++ 6.0</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#borland">Borland 5.64 and 5.51</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#comeau">Comeau 4.3.3</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#codewarrior">Code Warrior 8.3</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#tru64">TRU64</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#dinkumware">Dinkumware Library</a>
-          <dt><img style="display:none" src="dot.gif"><a target="detail" href="implementation.html#stlport">STLPort 4.5.3</a>
-        </dl></div>
-        <dt><img style="display:none" src="plus.gif" id="headers"><a target="detail" href="headers.html">Code Structure</a>
-        <div id="headers_detail"><dl class="page-index">
-          <dt><img style="display:none" src="plus.gif" id="userincludes"><a target="detail" href="headers.html#userincludes">Files Included by User Programs</a>
-          <div id="userincludes_detail"><dl class="page-index">
-            <dt><img style="display:none" src="dot.gif"><a target="detail" href="headers.html#archiveimplementations">Archive Implementations</a>
-            <dt><img style="display:none" src="dot.gif"><a target="detail" href="headers.html#serializationdeclarations">Serialization Declarations</a>
-            <dt><img style="display:none" src="dot.gif"><a target="detail" href="headers.html#serializationimplementations">Serialization Implementations</a>
-          </dl></div>
-          <dt><img style="display:none" src="plus.gif" id="libraryimplementation"><a target="detail" href="headers.html#libraryimplementation">Files Which Implement the Library</a>
-          <div id="libraryimplementation_detail"><dl class="page-index">
-            <dt><img style="display:none" src="dot.gif"><a target="detail" href="headers.html#archivedevelopment">Archive Development</a>
-            <dt><img style="display:none" src="dot.gif"><a target="detail" href="headers.html#archiveinternals">Archive Internals</a>
-            <dt><img style="display:none" src="dot.gif"><a target="detail" href="headers.html#codemodules">Archive Library Code Modules</a>
-            <dt><img style="display:none" src="dot.gif"><a target="detail" href="headers.html#dataflowiterators">Dataflow Iterators</a>
-          </dl></div>
-        </dl></div>
-      </dl></div></dd>
-    </dl></div></dd>
-    <dt><img style="display:none" src="plus.gif" id="case_studies">Case Studies
-    <dd><div id="case_studies_detail"><dl class="page-index">
-      <dt><img style="display:none" src="dot.gif"><a target="detail" href="shared_ptr.html">Template serialization - <code>shared_ptr&lt;class T&gt;</code></a>
-      <dt><img style="display:none" src="dot.gif"><a target="detail" href="shared_ptr2.html"><code>shared_ptr&lt;class T&gt;</code>Revisited</a>
-      <dt><img style="display:none" src="dot.gif"><a target="detail" href="pimpl.html">PIMPL</a>
-      <dt><img style="display:none" src="dot.gif"><a target="detail" href="derivation.html">Derivation from an Existing Archive Class</a>
-    </dl></div></dd>
-    <dt><img style="display:none" src="plus.gif" id="miscellaneous">Miscellaneous
-    <dd><div id="miscellaneous_detail"><dl class="page-index">
-      <dt><img style="display:none" src="plus.gif" id="extended_type_info"><a target="detail" href="extended_type_info.html"><code>extended_type_info</code></a>
-      <dd><div id="extended_type_info_detail"><dl class="page-index">
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="extended_type_info.html#motivation">Motivation</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="extended_type_info.html#runtime">Runtime Interface</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="extended_type_info.html#requirements">Requirements</a>
-        <dt><img style="display:none" src="dot.gif"><a target="detail" href="extended_type_info.html#models">Models</a>
-      </dl></div></dd>
-      <dt><img style="display:none" src="dot.gif"><a target="detail" href="void_cast.html"><code>void_cast</code></a>
-      <dt><img style="display:none" src="dot.gif"><a target="detail" href="codecvt.html">utf-8 code_cvt</a>
-      <dt><img style="display:none" src="dot.gif"><a target="detail" href="strong_typedef.html"><code>BOOST_STRONG_TYPEDEF</code></a>
-      <dt><img style="display:none" src="dot.gif"><a target="detail" href="state_saver.html"><code>state_saver</code></a>
-      <dt><img style="display:none" src="dot.gif"><a target="detail" href="dataflow.html">Dataflow Iterators</a>
-      <dt><img style="display:none" src="dot.gif"><a target="detail" href="smart_cast.html"><code>smart_cast</code></a>
-      <dt><img style="display:none" src="dot.gif"><a target="detail" href="static_warning.html"><code>BOOST_STATIC_WARNING</code></a>
-    </dl></div></dd>
-    <!--
-    <dt><img style="display:none" src="dot.gif"><a target="detail" href="configuration.html">Configuration Information</a></dt>
+  </dl></div></dd>
+
+  <dt><img style="display:none" src="dot.gif"><a target="detail" href="history.html">History</a>
+  <!--
+  <dt><img style="display:none" src="dot.gif"><a target="detail" href="definitions.html">Definitions</a></dt>
+  <dt><img style="display:none" src="dot.gif"><a target="detail" href="faq.html">Frequently Asked Questions (FAQs)</a></dt>
    -->
-    <dt><img style="display:none" src="plus.gif" id="rationale"><a target="detail" href="rationale.html">Rationale</a></dt>
-    <dd><div id="rationale_detail"><dl class="page-index">
-      <dt><img style="display:none" src="dot.gif"><a target="detail" href="rationale.html#serialization">The term "serialization" is preferred to "persistence"</a></dt>
-      <dt><img style="display:none" src="dot.gif"><a target="detail" href="rationale.html#archives">Archives are not streams</a></dt>
-      <dt><img style="display:none" src="dot.gif"><a target="detail" href="rationale.html#typeid"><code style="white-space: normal">typeid</code> information is not included in archives</a></dt>
-      <dt><img style="display:none" src="dot.gif"><a target="detail" href="rationale.html#trap">Compile time trap when saving a non-const value</a></dt>
-    </dl></div></dd>
-    <dt><img style="display:none" src="dot.gif"><a target="detail" href="history.html">History</a>
-    <!--
-    <dt><img style="display:none" src="dot.gif"><a target="detail" href="definitions.html">Definitions</a></dt>
-    <dt><img style="display:none" src="dot.gif"><a target="detail" href="faq.html">Frequently Asked Questions (FAQs)</a></dt>
-    -->
-    <dt><img style="display:none" src="dot.gif"><a target="detail" href="bibliography.html">Bibliography</a></dt>
-    <dt><img style="display:none" src="dot.gif"><a target="detail" href="acknowledgments.html">Acknowledgments</a></dt>
-  </dl></div>
+  <dt><img style="display:none" src="dot.gif"><a target="detail" href="bibliography.html">Bibliography</a></dt>
+  <dt><img style="display:none" src="dot.gif"><a target="detail" href="acknowledgments.html">Acknowledgments</a></dt>
+</dl></div>
 </small>
 </body>
 </html>
@@ -35,26 +35,26 @@ We would prefer the solution that is:
 <ul>
  <li>Decomposable. so we can code, test, verify and use each (simple) stage of the conversion 
  independently.
-  <li>Composable. so we can used this composite as a new component somewhere else.
+  <li>Composable. so we can use this composite as a new component somewhere else.
  <li>Efficient, so we're not required to re-implement it again.
  <li>Scalable, so that it works well for short and arbitrarily long sequences.
 </ul>
 The approach that comes closest to meeting these requirements is that described
 and implemented with <a href="../../iterator/doc/index.html">Iterator Adaptors</a>.
-The fundamental feature of an Iterator Adaptor template that makes in interesting to
+The fundamental feature of an Iterator Adaptor template that makes it interesting to
 us is that it takes as a parameter a base iterator from which it derives its
 input. This suggests that something like the following might be possible.
 <pre><code>
 typedef 
-    insert_linebreaks&lt;         // insert line breaks every 72 characters
-        base64_from_binary&lt;    // convert binary values ot base64 characters
+    insert_linebreaks&lt;         // insert line breaks every 76 characters
+        base64_from_binary&lt;    // convert binary values to base64 characters
            transform_width&lt;   // retrieve 6 bit integers from a sequence of 8 bit bytes
                const char *,
                6,
                8
            &gt;
        &gt; 
-        ,72
+        ,76
    &gt; 
    base64_text; // compose all the above operations in to a new iterator

@@ -71,12 +71,12 @@ included is <a target="transform_iterator" href="../../iterator/doc/transform_it
 transform_iterator</a>, which can be used to implement 6 bit integer =&gt; base64 code.

 <h3>Dataflow Iterators</h3>
-Unfortunately, not all iterators which inherit from Iterator Adaptors are guarenteed
+Unfortunately, not all iterators which inherit from Iterator Adaptors are guaranteed
 to meet the composability goals stated above.  To accomplish this purpose, they have
 to be written with some additional considerations in mind.

 We define a Dataflow Iterator as an class inherited from <code style="white-space: normal">iterator_adaptor</code> which
-fulfills as a small set of additional requirements.
+fulfills a small set of additional requirements.

 <h4>Templated Constructors</h4>
 <p>
@@ -110,22 +110,8 @@ std::copy(
 The recursive application of this template is what automatically generates the
 constructor <code style="white-space: normal">base64_text(const char *)</code>  in our example above.  The original
 Iterator Adaptors include a <code style="white-space: normal">make_xxx_iterator</code> to fulfill this function.
-However, I believe these are unwieldy to use compared to the above solution usiing
+However, I believe these are unwieldy to use compared to the above solution using
 Templated constructors.
-<p>
-Unfortunately, some systems which fail to properly support partial function template
-ordering cannot support the concept of a templated constructor as implemented above.  
-A special"wrapper"  macro has been created to work around this problem. With this "wrapper" 
-the above example is modified to:
-<pre><code>
-std::copy(
-    base64_text(BOOST_MAKE_PFTO_WRAPPER(address)),
-    base64_text(BOOST_MAKE_PFTO_WRAPPER(address + count)),
-    ostream_iterator&lt;char&gt;(os)
-);
-</code></pre>
-This macro is defined in <a target="pfto" href="../../../boost/pfto.hpp">&lt;boost/pfto.hpp&gt;</a>.
-For more information about this topic, check the source.

 <h4>Dereferencing</h4>
 Dereferencing some iterators can cause problems.  For example, a natural
@@ -149,7 +135,7 @@ Iterators which fulfill the above requirements should be composable and the abov
 code should implement our binary to base64 conversion.

 <h3>Iterators Included in the Library</h3>
-Dataflow iterators for the serialization library are all defined in the hamespace
+Dataflow iterators for the serialization library are all defined in the namespace
 <code style="white-space: normal">boost::archive::iterators</code> included here are:
 <dl class="index">
  <dt><a target="base64_from_binary" href="../../../boost/archive/iterators/base64_from_binary.hpp">
@@ -195,7 +181,7 @@ The standard stream iterators don't quite work for us.  On systems which impleme
 as unsigned short integers (E.G. VC 6) they didn't function as I expected. I also made some
 adjustments to be consistent with our concept of Dataflow Iterators.  Like the rest of our
 iterators, they are found in the namespace <code style="white-space: normal">boost::archive::interators</code> to avoid
-conflict the standard library version.
+conflicts with the standard library versions.
 <dl class = "index">
  <dt><a target="istream_iterator" href="../../../boost/archive/iterators/istream_iterator.hpp">
  istream_iterator</a></dt>
@@ -26,42 +26,48 @@ http://www.boost.org/LICENSE_1_0.txt)
 </table>
 <hr>
 <dl class="page-index">
-  <dt><a target="detail" href="#portable_archives">Portable Binary Archives</a>
-  <dt><a target="detail" href="#fast_archives">Fast Binary Archives</a>
 </dl>

-<a name=portable_archives>
-<h3>Portable Binary Archives</h3>
+<h3>Log Archive</h3>
 It may happen that one wants to create a new archive class by derivation from one
 of the included ones. Included is a sample program that shows how to derive a 
 new archive from one of the ones included with the library.  The first example is
-<a href="../example/demo_portable_archive.cpp" target="demo_portable_archive_cpp">demo_portable_archive.cpp</a>.
-This binary archive save/loads integers in a portable format.  To this end
-it is derived from the native binary archive and the save/load functions for
-integers are overridden with special versions which convert to big endian
-format if necessary.  It also implements an exception for the case where an
-integer saved on one platform is too large for the platform which is loading
-the archive.  This example doesn't address floating point types.
-This examples illustrates several issues that have to be addressed when doing
-something like this.  The discussion below refers to the output archive only but it
-applies equally to input archives as well.
+<a href="../example/demo_log.cpp" target="demo_log_cpp">
+demo_log.cpp</a>.
+<p>
+This derivation from the xml archive writes output in xml without the extra
+information required to read the data back into the application.  It might be
+used to export one's data as simple xml for other applications or for logging
+data while debugging.
+<p>
+To this end it is derived from the included xml archive and the save functions for
+some types are specialized for this application.  
+<p>
+The serialization library is
+implemented using the <b>C</b>uriously <b>R</b>ecurring <b>T</b>emplate 
+<b>P</b>attern (<b>CRTP</b>).  Also, all common code is factored out into
+separate modules to minimize code repetition. This makes derivation from
+an existing archive less straightforward than it would otherwise be.
+<p> 
+This example illustrates several issues that have to be addressed when doing
+something like this
 <ol>
-    <li><i>It is derived from</i> <code style="white-space: normal">binary_oarchive_impl<portable_binary_oarchive></code> 
-        <b>NOT</b> <code style="white-space: normal">binary_oarchive</code> <br>
+    <li><i>It is derived from</i> <code style="white-space: normal">xml_oarchive_impl<log_archive></code> 
+        <b>NOT</b> <code style="white-space: normal">xml_oarchive</code> <br>
 As described in the comments in
-<a href="../../../boost/archive/binary_oarchive.hpp" target="binary_oarchive_hpp">binary_oarchive.hpp</a>.
-<code style="white-space: normal">binary_oarchive</code> really a shorthand name for 
-<code style="white-space: normal">binary_oarchive_impl&lt;binary_oarchive&gt;</code>.  So we should derive
-from <code style="white-space: normal">binary_oarchive_impl&lt;portable_binary_oarchive&gt;</code> rather
-than <code style="white-space: normal">binary_oarchive</code>.
+<a href="../../../boost/archive/xml_oarchive.hpp" target="xml_oarchive_hpp">xml_oarchive.hpp</a>.
+<code style="white-space: normal">xml_oarchive</code> really a shorthand name for 
+<code style="white-space: normal">xml_oarchive_impl&lt;xml_oarchive&gt;</code>.  So we should derive
+from <code style="white-space: normal">xml_oarchive_impl&lt;log_archive&gt;</code> rather
+than <code style="white-space: normal">xml_oarchive</code>.
 <pre><code>
-class portable_binary_oarchive :
-    // don't derive from binary_oarchive !!!
-    public binary_oarchive_impl&lt;portable_binary_oarchive&gt;
+class log_archive :
+    // don't derive from xml_oarchive !!!
+    public xml_oarchive_impl&lt;log_archive&gt;
 {
 ...
 </code></pre>
-    <li><i>Note the</i> <code style="white-space: normal">portable_binary_oarchive</code> <i>between the</i> &lt;&gt;
+    <li><i>Note the</i> <code style="white-space: normal">log_archive</code> <i>between the</i> &lt;&gt;
 This is required so that base classes can downcast their <code style="white-space: normal">this</code> pointer
 to the most derived class.  This is referred to as <b>C</b>uriously <b>R</b>ecurring
 <b>T</b>emplate <b>P</b>attern (<b>CRTP</b>) <a href="bibliography.html#11">[11]</a>.  
@@ -70,24 +76,21 @@ It is used to implement static polymorphism.
 This can be done by making members public or by including friend declarations for
 the base classes.
 <pre><code>
-    typedef portable_binary_oarchive derived_t;
-    friend class detail::common_oarchive&lt;derived_t&gt;;
-    friend class basic_binary_oarchive&lt;derived_t&gt;;
-    friend class basic_binary_oprimitive&lt;
-        derived_t, 
-        std::ostream::char_type, 
-        std::ostream::traits_type
-    &gt;;
+    friend class detail::common_oarchive&lt;log_archive&gt;;
+    friend class basic_xml_oarchive&lt;log_archive&gt;;
    friend class boost::serialization::save_access;
 </code></pre>
-    <li><i>Base class functions will usually need to be explicitly invoked</i>
-We commonly overload the function name <code style="white-space: normal">save</code> for saving primitives.
-This is very convenient.  Usage of a function name in a derived class
+
+    <li><i></i>Reread <a target="detail" href="headers.html#archiveinternals">Archive Internals</a>.
+This describes the class hierarchy so that you know what to override.
+    <li><i>Base class functions will usually need to be explicitly invoked.</i>
+We commonly specialize the function name <code style="white-space: normal">save_override</code> 
+for saving primitives. Usage of a function name in a derived class
 "hides" similarly named functions of the base class.  That is, 
 function name overloading doesn't automatically
 include base classes.  To address this, we can use:
 <pre><code>
-    using binary_oarchive_impl&lt;derived_t&gt;::save;
+    using xml_oarchive_impl&lt;derived_t&gt;::save;
    void save(const unsigned int t);
    ...
 </code></pre>
@@ -96,14 +99,14 @@ that the following equivalent works on more compilers.
 <pre><code>
    // default fall through for any types not specified here
    template&lt;class T&gt;
-    void save(const T & t){
-        binary_oarchive_impl&lt;derived_t&gt;::save(t);
+    void save(const T &amp; t){
+        xml_oarchive_impl&lt;derived_t&gt;::save(t);
    }
    void save(const unsigned int t);
    ...
 </code></pre>
 so it's what I use.
-    <li><i>Template definitions of base classes may have to be included.</i>
+    <li><i>Template definitions of base classes may have to be explicitly instantiated.</i>
    The demo includes
 <pre><code>
 // explicitly instantiate for this type of binary stream
@@ -111,48 +114,34 @@ so it's what I use.
 </code></pre>
 for just this purpose.  Failure to include required template definitions
 will result in undefined symbol errors when the program is linked.
-    <li><i>Without alteration, this class cannot be further derived from</i><br>
+    <li><i>Without alteration, this class cannot be further derived from.</i><br>
 Base classes using <b>CRTP</b> must be templates with a parameter corresponding to
 the most derived class.  As presented here, this class doesn't qualify, so
 it cannot be used as a base class.  In order to derive further from this class,
-it would have to be reorganized along the lines of the original <code style="white-space: normal">binary_oarchive</code>.
+it would have to be reorganized along the lines of the original <code style="white-space: normal">xml_oarchive</code>.
 Specifically, it would look something like:
 <pre><code>
 template&lt;class Archive&gt;
-class portable_binary_oarchive_impl :
-    // don't derive from binary_oarchive !!!
-    public binary_oarchive_impl&lt;Archive&gt;
+class log_archive_impl :
+    // don't derive from xml_oarchive !!!
+    public xml_oarchive_impl&lt;Archive&gt;
 {
    ...
-);
+};

-// do not derived from this class !!!
-class portable_binary_oarchive : 
-    public portable_binary_oarchive_impl&lt;portable_binary_oarchive&gt;
+// do not derive from this class !!!
+class log_archive : 
+    public log_archive_impl&lt;log_archive&gt;
 {
 public:
-    portable_binary_oarchive(std::ostream & os, unsigned int flags = 0) :
-        portable_binary_oarchive_impl&lt;binary_oarchive&gt;(os, flags)
+    log_archive(std::ostream &amp; os, unsigned int flags = 0) :
+        log_archive_impl&lt;xml_oarchive&gt;(os, flags)
    {}
 };
 </code></pre>

 </ol>  

-<a name=fast_archives>
-<h3>Fast Binary Archives</h3>
-The second example 
-<a href="../example/demo_fast_archive.cpp" target="demo_fast_archive_cpp">demo_fast_archive.cpp</a>.
-is similar to the first one.  The difference is that it intercepts the serialization before
-the default serialization is invoked.  In this case we want to replace the default
-serialization of C arrays of integers with a faster one.  The default version
-will invoke serialization of each element of the array.  If its an array of
-integers, and we're not concerned with the archive being portable to another platform
-we can just save/load the whole array as a binary string of bytes.  This should
-be faster than the default element by element method.
-<p>
-The same considerations that applied when overriding the the save/load of primitives
-above apply here, and the code is very similar.
 <hr>
 <p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2002-2004. 
 Distributed under the Boost Software License, Version 1.0. (See
@@ -70,7 +70,7 @@ an invalid pointer, or creating a memory leak.
        If an exception occurs, <i>referenced</i> pointers will not need to be deleted
        so there will be no memory leaks. The destructor of this class won't attempt to
        delete these pointers so there will be no problem with dangling references.
-        <i>owned</i> pointers are handled exactly as described above.
+        <i>Owned</i> pointers are handled exactly as described above.
        <p>
        <li><h4>class contains <i>referenced</i> pointers which might be created by load</h4>
        If a <i>referenced</i> pointer is loaded before its corresponding <i>owned</i>
@@ -81,7 +81,7 @@ an invalid pointer, or creating a memory leak.
        <li>Trap exceptions with a <code style="white-space: normal">try/catch</code> block.
        <li>Within the catch part, invoke the archive function 
        <code style="white-space: normal">delete_created_pointers()</code> to delete any pointers
-        created by the class load.  Without out other action, objects created in
+        created by the class load.  Without other action, objects created in
        this way would end up as memory leaks as they are not considered <i>owned</i>
        pointers and hence aren't destroyed.
        <li>The object's destructor won't try
@@ -29,12 +29,15 @@ http://www.boost.org/LICENSE_1_0.txt)
  <dt><a href="#unregistered_class"><code style="white-space: normal">unregistered_class</code></a>
  <dt><a href="#invalid_signature"><code style="white-space: normal">invalid_signature</code></a>
  <dt><a href="#unsupported_version"><code style="white-space: normal">unsupported_version</code></a>
+  <dt><a href="#unsupported_class_version"><code style="white-space: normal">unsupported_class_version</code></a>
  <dt><a href="#pointer_conflict"><code style="white-space: normal">pointer_conflict</code></a>
  <dt><a href="#incompatible_native_format"><code style="white-space: normal">incompatible_native_format</code></a>
  <dt><a href="#array_size_too_short"><code style="white-space: normal">array_size_too_short</code></a>
-  <dt><a href="#stream_error"><code style="white-space: normal">stream_error</code></a>
+  <dt><a href="#input_stream_error"><code style="white-space: normal">input_stream_error</code></a>
+  <dt><a href="#output_stream_error"><code style="white-space: normal">output_stream_error</code></a>
  <dt><a href="#invalid_class_name"><code style="white-space: normal">invalid_class_name</code></a>
  <dt><a href="#unregistered_class"><code style="white-space: normal">unregistered_class</code></a>
+  <dt><a href="#multiple_code_instantiation"><code style="white-space: normal">multiple_code_instantiation</code></a>
  <dt><a href="#xml_archive_parsing_error"><code style="white-space: normal">xml_archive_parsing_error</code></a>
  <dt><a href="#xml_archive_tag_mismatch"><code style="white-space: normal">xml_archive_tag_mismatch</code></a>
  <dt><a href="#xml_archive_tag_name_error"><code style="white-space: normal">xml_archive_tag_name_error</code></a>
@@ -43,8 +46,9 @@ http://www.boost.org/LICENSE_1_0.txt)
 Archive operators can throw a <code style="white-space: normal">boost::archive_exception</code>
 object which can be caught by an application program.  These exceptions are defined
 in the files <a target="archive_exception_hpp" href="../../../boost/archive/archive_exception.hpp">
-boost/archive/archive_exception.hpp</a> and <a target="archive_xml_exception_hpp" href="../../../boost/archive/archive_exception.hpp">
-boost/archive/archive_xml_exception.hpp</a>.
+archive_exception.hpp</a>
+and <a target="basic_xml_archive_hpp" href="../../../boost/archive/basic_xml_archive.hpp">
+basic_xml_archive.hpp</a>.
 <pre><code>
 namespace boost {
 namespace archive {
@@ -53,7 +57,7 @@ class archive_exception  : public std::exception
 {
 public:
    typedef enum {
-        unregistered_class,     // attempt to serialize a pointer of an
+        unregistered_class,     // attempt to serialize a pointer of
                                // an unregistered class
        invalid_signature,      // first line of archive does not contain
                                // expected string
@@ -62,17 +66,23 @@ public:
        pointer_conflict        // an attempt has been made to directly serialize
                                // an object after having already serialized the same
                                // object through a pointer.  Were this permitted, 
-                                // it the archive load would result in the creation
-                                // of extraneous object.
+                                // the archive load would result in the creation
+                                // of an extraneous object.
        incompatible_native_format, // attempt to read native binary format
                                // on incompatible platform
        array_size_too_short,   // array being loaded doesn't fit in array allocated
-        stream_error            // i/o error on stream
+        input_stream_error      // error on stream input
        invalid_class_name,     // class name greater than the maximum permitted.
                                // most likely a corrupted archive or an attempt
                                // to insert virus via buffer overrun method.
-        unregistered_cast       // base - derived relationship not registered with 
+        unregistered_cast,      // base - derived relationship not registered with 
                                // void_cast_register
+        unsupported_class_version, // type saved with a version # greater than the 
+                            // one used by the program.  This indicates that the program
+                            // needs to be rebuilt.
+        multiple_code_instantiation, // code for implementing serialization for some
+                            // type has been instantiated in more than one module.
+        output_stream_error     // error on stream output
    } exception_code;
    exception_code code;
    archive_exception(exception_code c) : code(c) {}
@@ -99,7 +109,7 @@ public:
 <h3><a name="unregistered_class"><code style="white-space: normal">unregistered_class</code></a></h3>
 An attempt has been made to serialize a polymorphic class through a pointer
 without either registering it or associating it with an export key.  This can also occur
-when using a new archive how class name has not been added to the system with the 
+when using a new archive whose class name has not been added to the system with the 
 <code style="white-space: normal">BOOST_ARCHIVE_CUSTOM_ARCHIVE_TYPES</code> macro.

 <h3><a name="invalid_signature"><code style="white-space: normal">invalid_signature</code></a></h3>
@@ -108,10 +118,10 @@ the archive is opened, It is presumed that this file is not a valid archive and
 exception is thrown.

 <h3><a name="unsupported_version"><code style="white-space: normal">unsupported_version</code></a></h3>
-This system assigns a version number of 2 to all archives created.  Note that this is in
+This system records the current library version number to all archives created.  Note that this is in
 no way related to version number of classes used by application programs. This refers
 to the version of the serialization system used to create the archive. Future versions
-of this serialization system will be able to identify archives created under previous
+of this serialization system will be able to identify archives created under a previous
 (i.e. this) system and alter the loading procedure accordingly.  Hence, future enhancements
 to this serialization system should not obsolete any existing archive files.  It is only
 necessary to increment this version number when the newer system creates archives
@@ -119,27 +129,35 @@ incompatible in format with the current one.
 <p>Should it ever occur that an older program attempts to read newer archives whose
 format has changed, this exception is thrown.

+<h3><a name="unsupported_class_version"><code style="white-space: normal">unsupported_class_version</code></a></h3>
+An attempt has been made to load a class whose version has been incremented since the
+program was written.  Suppose that a class has been assigned version number 3 and the program
+has been built and sent to third parties.  Now suppose that the definition of that class
+has been altered, the version number has been incremented to 4 and new archives have been
+built.  If one attempts to load these new archives with the original program, this 
+exception will be thrown.
+
 <h3><a name="pointer_conflict"><code style="white-space: normal">pointer_conflict</code></a></h3>
 To understand what this exception means consider the following scenario
 <pre><code>
 template&lt;class Archive&gt;
-void T::save(Archive &ar) const
+void T::save(Archive &amp;ar) const
 {
-    const A * aptr = &a;
-    ar << aptr;          // save an instance of object of class A through a pointer
+    const A * aptr = &amp;a;
+    ar &lt;&lt; aptr;          // save an instance of object of class A through a pointer
    ...
-    ar << a;             // save an instance of an object of class A
-    assert(aptr == &a);  // this must be true
+    ar &lt;&lt; a;             // save an instance of an object of class A
+    assert(aptr == &amp;a);  // this must be true
 }

 template&lt;class Archive&gt;
-void T::load(Archive &ar)
+void T::load(Archive &amp;ar)
 {
    A * aptr;
-    ar >> aptr;          // create and initialize a new instance of class A
+    ar &gt;&gt; aptr;          // create and initialize a new instance of class A
    ...
-    ar >> a;             // restore state of on object of class A
-    assert(aptr == &a);  // this won't be true
+    ar &gt;&gt; a;             // restore state of on object of class A
+    assert(aptr == &amp;a);  // this won't be true
 }
 </pre></code>
 An object is saved first through a pointer then directly.  Upon loading back
@@ -161,8 +179,12 @@ An attempt has been made to read an array that is larger than the array size.
 This should only occur when the size of an array in code is reduced after an
 archive has already been created.

-<h3><a name="stream_error"><code style="white-space: normal">stream_error</code></a></h3>
-An error has occured during stream input or ouput.  Aside from the common 
+<h3>
+<a name="input_stream_error"><code style="white-space: normal">input_stream_error</code></a>
+<br>
+<a name="output_stream_error"><code style="white-space: normal">output_stream_error</code></a>
+</h3>
+An error has occurred during stream input or ouput.  Aside from the common 
 situations such as a corrupted or truncated input file, there are 
 several less obvious ones that sometimes occur.
 <p>
@@ -203,7 +225,7 @@ This, in turn, can result in the throwing of this exception.

 <h3><a name="invalid_class_name"><code style="white-space: normal">invalid_class_name</code></a></h3>
 Class name length greater than the maximum permitted. Most likely cause is a corrupted 
-archive  or an attempt to insert virus via buffer overrun method.
+archive  or an attempt to insert a virus via the buffer overrun method.

 <h3><a name="unregistered_cast"><code style="white-space: normal">unregistered_cast</code></a></h3>
 In order to support casting between pointers of base and derived classes
@@ -215,6 +237,11 @@ is described in <a href="serialization.html#runtimecasting">Runtime Casting</a>.
 This exception is thrown if an attempt is made to convert between two pointers 
 whose relationship has not been registered,

+<h3><a name="multiple_code_instantiation"><code style="white-space: normal">multiple_code_instantiation</code></a></h3>
+This exception is thrown when it is detected that the serialization of the same type 
+has been instantiated more than once.  This might occur when
+serialization code is instantiated in both the mainline and one or more DLLS.
+
 <h3><a name="xml_archive_parsing_error"><code style="white-space: normal">xml_archive_parsing_error</code></a></h3>
 The XML generated by the serialization process is intimately coupled to the
 C++ class structure, relationships between objects and the serialization 
@@ -223,8 +250,8 @@ to the loading serialization and this exception might be thrown.  This might
 occur for one of the following reasons:
 <ul>
    <li>The archive has been edited outside the serialization system.  This might
-be possible if only the data is changed and not the XML attributes and nesting
-structure is left unaltered.  But any other editing is likely to render the
+be possible if only the data is changed and the XML attributes and nesting
+structure are left unaltered.  But any other editing is likely to render the
 archive unreadable by the serialization library.
    <li>The serialization has been altered and an archive generated by the old
 code is being read.  That is, versioning has not been properly employed to
@@ -232,7 +259,7 @@ properly deserialize previously created archives.
 </ul>

 <h3><a name="xml_archive_tag_mismatch"><code style="white-space: normal">xml_archive_tag_mismatch</code></a></h3>
-This exception will be thrown if the start or end tag of and XML element doesn't match
+This exception will be thrown if the start or end tag of an XML element doesn't match
 the name specified for the object in the program.

 <h3><a name="xml_archive_tag_name_error"><code style="white-space: normal">xml_archive_tag_name_error</code></a></h3>
@@ -1,4 +1,4 @@
-<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <!--
 (C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com . 
@@ -33,7 +33,6 @@ http://www.boost.org/LICENSE_1_0.txt)
  <dt><a href="#example">Example</a>
 </dl>

-
 <h3><a name="motivation">Motivation</a></h3>
 The serialization library needs a system like 
 <code style="white-space: normal">type_info/typeid()</code> to perform
@@ -50,7 +49,7 @@ the following functions
    The main function we require - <code style="white-space: normal">std::typeid()</code>
    is not available in all environments. Support for this function depends upon
    runtime typing(RTTI) support from the compiler.  This may be non-existent
-    or not enabled for reasons such as a percieved inefficiency.
+    or not enabled for reasons such as a perceived inefficiency.
  <li>
    <code style="white-space: normal">std::type_info</code> includes a string
    containing type name.  This would seem to satisfy 2) above.
@@ -58,128 +57,128 @@ the following functions
    and operating systems. This makes it unusable for support of portable archives.
  <li>
    Even if the type name string could somehow be made portable, there is no 
-    guarentee that class headers would be included in the same name space accross 
+    guarantee that class headers would be included in the same namespace accross 
    different applications. In fact, including different headers in different
-    name spaces is an accepted method used to avoid name space conflicts.
+    namespaces is an accepted method used to avoid namespace conflicts.
    Thus the namespace::class_name can't be used as a key.
-  <li>
-    We may want the ability to serialize objects through a base class even though
-    they have no <code style="white-space: normal">virtual</code> function.  That
-    is, objects of classes which are not polymorphic in the strict C++ sense.  This
-    is not supported by the standard system.
  <li>
    There exists the possibility that different classes use different type id 
-    mechanism.  The class header might include this information. If we want to 
-    import class headers accross applications, its convenient that the type id
+    mechanisms.  The class header might include this information. If we want to 
+    import class headers accross applications, it's convenient that the type id
    mechanism support inter-operability accross different type id systems.
 </ul>
 <h3>Features</h3>
-<code style="white-space: normal"><a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">extended_type_info</a></code> is an implementation
+<code style="white-space: normal"><a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">
+extended_type_info</a></code> is an implementation
 of <code style="white-space: normal">std::type_info</code> functionality with the 
 following features:
 <ul>
  <li>
-    Maintains a global table of <code style="white-space: normal"><a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">extended_type_info</a></code> records - one for each type known
-    to the program.
+    Builds a set of <a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">
+    <code style="white-space: normal">extended_type_info</a></code> records - one for each type
+    serialized.
  <li>
-    permits association of an arbitrary key with a type.  Often this key would
+    permits association of an arbitrary string key with a type.  Often this key would
    be the class name - but it doesn't have to be.  This key is referred to as
    a GUID - Globally Unique IDentifier.  Presumably it should be unique in the universe.
    Typically this GUID would be in header files and be used to match type accross
-    applications.
+    applications.  The macro BOOST_CLASS_EXPORT can be invoked to associate a string
+    key with any known type.  We'll refer to these types as "exported types"
  <li>
    permits the "mixing" of type info systems.  For example, one class might use 
    <code style="white-space: normal">typeid()</code> to find the external identifier 
    of a class while another might not.
 </ul>
-The serialization system maintains two global tables.
-<ul>
-  <li>The first is a global type table. it has an entry for each type used.
-  Each entry is an instance of a class derived from 
-  <code style="white-space: normal"><a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">extended_type_info</a></code>. This table is used
-  to retrieve the unique <code style="white-space: normal"><a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">extended_type_info</a></code>
-  information for any given type.
-  <li>The second is global key table. It has an entry for each type which has been assigned a GUID string key.
-  This table is used to retrieve the unique 
-  <code style="white-space: normal"><a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">extended_type_info</a></code> given its GUID.
-</ul>
-This library includes two different type id systems:
-<ul>
-  <li>
-    <code style="white-space: normal"><a target="extended_type_info_typeid.hpp" href = "../../../boost/serialization/extended_type_info_typeid.hpp">extended_type_info_typeid</a></code>
-    which is implemented in terms of the standard
-    <code style="white-space: normal">typeid()</code>.
-  <li>
-    <code style="white-space: normal"><a target="extended_type_info_no_rtti.hpp" href="../../../boost/serialization/extended_type_info_no_rtti.hpp">extended_type_info_no_rtti</a></code>
-    which is implemented in a way that doesn't rely on the existence
-    RTTI.  However, it does require that all classes for which type id is to be used
-    be explictly assigned an external key - which otherwise would be optional.
-</ul>
+
+Exported types are maintained in a global table so that given a string key, the
+corresponding type can be found.  This facility is used by the serialization library
+in order to construct types serialized through a base class pointer.

 <h3><a name="runtime">Runtime Interface</a></h3>
-<pre><code">
+<pre><code>
 namespace boost { 
 namespace serialization {

-class BOOST_SERIALIZATION_DECL extended_type_info : 
-    private boost::noncopyable 
+class extended_type_info
 {
 protected:
-    extended_type_info(const char * type_info_key);
+    // this class can't be used as is. It's just the 
+    // common functionality for all type_info replacement
+    // systems.  Hence, make these protected
+    extended_type_info(
+        const unsigned int type_info_key,
+        const char * key
+    );
+    ~extended_type_info();
+    void key_register();
+    void key_unregister();
 public:
-    void self_register();
-    void key_register(const char *key);
    const char * get_key() const;
-
-    bool operator<(const extended_type_info &rhs) const;
-    bool operator==(const extended_type_info &rhs) const;
-    bool operator!=(const extended_type_info &rhs) const;
-
+    bool operator&lt;(const extended_type_info &amp;rhs) const;
+    bool operator==(const extended_type_info &amp;rhs) const;
+    bool operator!=(const extended_type_info &amp;rhs) const {
+        return !(operator==(rhs));
+    }
+    // for plugins
+    virtual void * construct(unsigned int count = 0, ...) const;
+    virtual void destroy(void const * const p) const;
    static const extended_type_info * find(const char *key);
-    static const extended_type_info * find(const extended_type_info * t);
 };

 } // namespace serialization 
 } // namespace boost
 </code></pre>
-
-There must be one and only one <code style="white-space: normal"><a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">extended_type_info</a></code>
-instance created for each type. For this reason, this class is marked is derived from
-<code style="white-space: normal">boost::noncopyable</code>. 
-
+<p>
+Generally, there will be one and only one
+<code style="white-space: normal"><a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">extended_type_info</a></code>
+instance created for each type.  However, this is enforced only at the executable
+module level.  That is, if a program includes some shared libraries or DLLS,
+there may be more than one instance of this class corresponding to a particular type.
+For this reason the comparison functions below can't just compare the addresses of 
+this instance but rather must be programmed to compare the actual information 
+the instances contain.
 <dl>

 <dt><h4><pre><code>
-extended_type_info(const char * type_info_key);</code></pre></h4></dt>
-<dd>
-This constructor should be called by all derived classes. It should be passed
-a pointer to a const string which identifies the type id system being used.  This
-type id is used to distinguish among the various type id system that might be used
-and allow them to interoperate.
-</dd>
-
-<dt><h4><pre><code>
-void self_register();
+extended_type_info(unsigned int type_info_key, const char *key);
 </code></pre></h4></dt>
 <dd>
-This function adds entry for an entry to the global type table.  It would usually be 
-called from the constructor of the derived class which implements the 
-<code style="white-space: normal"><a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">extended_type_info</a></code> functionality.
-</dd>
-
-<dt><h4><pre><code>
-void key_register(const char *key);
-</code></pre></h4></dt>
-<dd>
-Assign a unique character string identifier to this
-<code style="white-space: normal"><a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">extended_type_info</a></code>
-instance and add it to the corresponding global trable. 
-This key is used to identify a type accross different instances of the program.  
-In this way, one instance may know what type to create when necessary.  
-For this purpose, it must be the same in all program instances which
-refer to the same type.
+This constructor should be called by all derived classes.
+The first argument should be the particular implementation. 
+For this default implementation base on typeid(), this is the 
+value 1.  Each system must have its own integer.  This value
+is used to permit the inter-operability of different typeinfo
+systems.
 <p>
+The second argument is a const string which is the external
+name of the type to which this record corresponds.  
 It may sometimes be referred to as a GUID - a <b>G</b>lobal <b>U</b>nique <b>ID</b>entifier.
+It is passed through archives from one program invocation to
+another to uniquely identify the types that the archive contains.
+If the "export" facility is not going to be used, 
+this value may be NULL.
+</dd>
+
+<dt><h4><pre><code>
+void key_register();
+void key_unregister();
+</code></pre></h4></dt>
+<dd>
+This system maintains a global table which relates
+external strings to 
+<code style="white-space: normal">extended_type_info</code> records.
+This table is used when loading pointers to objects serialized
+through a base class pointer.  In this case, the archive 
+contains a string which is looked up in this table to
+determine which <code style="white-space: normal">extended_type_info</code>
+to use for creating a new object.
+<p>
+These functions are called by constructors and
+destructors of classes which implement 
+<code style="white-space: normal">extended_type_info</code>
+to add and remove entries from this table.
+</dd>
+
 <dt><h4><pre><code>
 const char *get_key() const;
 </code></pre></h4></dt>
@@ -189,58 +188,80 @@ instance.  If no key has been associated with the instance, then a NULL is retur
 </dd>

 <dt><h4><pre><code>
-bool operator&lt;(const extended_type_info &rhs) const;
-bool operator==(const extended_type_info &rhs) const;
-bool operator!=(const extended_type_info &rhs) const;
+bool operator<(const extended_type_info &amp; rhs) const;
+bool operator==(const extended_type_info &amp; rhs) const;
+bool operator!=(const extended_type_info &amp; rhs) const;
 </code></pre></h4></dt>
 <dd>
-These functions are used to compare two <code style="white-space: normal"><a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">extended_type_info</a></code> objects.
-Among other things, these are used for lookup in the tables.
+These functions are used to compare
+<a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">
+<code style="white-space: normal">
+extended_type_info
+</code> 
+</a>
+objects. They impose a strict total ordering on all
+<code style="white-space: normal">extended_type_info</code> records.
+</dd>
+
+<dt><h4><pre><code>
+virtual void * construct(unsigned int count = 0, ...) const;
+</code></pre></h4></dt>
+<dd>
+Construct a new instance of the type to which this
+<a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">
+<code style="white-space: normal">
+extended_type_info
+</code>
+</a>
+record corresponds. This function takes a variable list of up to 4 arguments
+of any type.  These arguments are passed to the type's constructor
+at runtime.  In order to use the facility, 
+one must declare a type sequence for the constructor arguments.  
+Arguments for this function must match in number and type
+with those specified when the type was exported.  
+This function permits one to create instances of
+any exported type given only the exported <strong>GUID</strong> assigned
+with BOOST_CLASS_EXPORT.  
+If these types are defined in DLLS or shared libraries loaded at runtime, 
+these constructors can be called until the module is unloaded.  
+Such modules are referred to as <b>plugins</b>. 
+</code>
+</dd>
+
+<dt><h4><pre><code>
+virtual void destroy(void const * const p) const;
+</code></pre></h4></dt>
+<dd>
+Destroy an instance created by the above constructor.
+</dd>

 <dt><h4><pre><code>
 static const extended_type_info * find(const char *key);
 </code></pre></h4></dt>
 <dd>
-Given a character string key or <strong>GUID</strong>, return the address of the 
-unique corresponding <code style="white-space: normal"><a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">extended_type_info</a></code>
+Given a character string key or <strong>GUID</strong>, return the address of a 
+corresponding <code style="white-space: normal"><a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">extended_type_info</a></code>
 object. 

-<dt><h4><pre><code>
-static const extended_type_info * find(const extended_type_info * t);
-</code></pre></h4></dt>
-<dd>
-Given a pointer to an
-<code style="white-space: normal"><a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">extended_type_info</a></code>,
-return the address of the instance of the same type in the main table.
-That is the argument t is used as a search argment to find the main
-table entry for a given type. It would be used like this:
-<code><pre>
-// return the global type entry for our type T
-return find(some_extended_type_info_implementation&lt;T&gt;())
-</pre></code>
-
 </dl>

-<h3><a name="requirements">Requirements</a></h3>
+<h3><a name="requirements">Requirements for an Implementation</a></h3>
 In order to be used by the serialization library, an implementation of
 <code style="white-space: normal">extended_type_info</code>, 
-(referred to as ETI here), must implement the following:
+(referred to as ETI here), must be derived from 
+<a target="extended_type_info.hpp" href = "../../../boost/serialization/extended_type_info.hpp">
+<code style="white-space: normal">
+extended_type_info
+</code> 
+</a>
+and also implement the following:

 <dl>

 <dt><h4><code style="white-space: normal"><pre>
 template&lt;class ETI&gt;
-virtual bool
-ETI::less_than(const extended_type_info &rhs) const;
-</pre></code></h4></dt>
-<dd>
-Impose a strict total ordering on all instances of the class ETI.
-</dd>
-
-<dt><h4><code style="white-space: normal"><pre>
-template&lt;class ETI&gt;
-static const extended_type_info *
-ETI::get_derived_extended_type_info(const T & t);
+const extended_type_info *
+ETI::get_derived_extended_type_info(const T &amp; t) const;
 </pre></code></h4></dt>
 <dd>
 Return a pointer to the 
@@ -248,45 +269,51 @@ Return a pointer to the
 instance that corresponds to
 the "true type" of the type T.  The "true type" is the lowest type in the
 hierarchy of classes.  The type T can always be cast to the "true type" with
-a static cast.  Implemention of this function will vary among type id systems
+a static cast.  Implementation of this function will vary among type id systems
 and sometimes will make presumptions about the type T than can be identified
-with a particular <code style="white-space: normal">extended_type_info implementation</code>.
+with a particular <code style="white-space: normal">extended_type_info</code> implementation.
 </dd>

 <dt><h4><code style="white-space: normal"><pre>
-template&lt;class ETI&gt;
-static extended_type_info *
-ETI::get_instance();
+virtual bool ETI::is_less_than(const extended_type_info &amp;rhs) const;
 </pre></code></h4></dt>
 <dd>
-Return a pointer to the instance of
-<code style="white-space: normal">extended_type_info</code>
-which corresponds to type T.  Normally these instances are static objects so
-this just amounts to returning the address of this static object.
+Compare this instance to another one using the same
+<code style="white-space: normal">extended_type_info</code> implementation.
 </dd>

 <dt><h4><code style="white-space: normal"><pre>
-static void
-template&lt;class ETI&gt;
-ETI::export_register(const char * key);
+virtual bool ETI::is_equal(const extended_type_info &amp;rhs) const;
 </pre></code></h4></dt>
 <dd>
-The main function is to invoke key_register to add the GUID to the
-global table.  Depending on the type id system being used, it might
-perform other initializaition functions as well.
+Compare this instance to another one using the same
+<code style="white-space: normal">extended_type_info</code> implementation.
+Return <code style="white-space: normal">true</code> if the types referred
+to are the same.  Otherwise return 
+<code style="white-space: normal">false</code>
 </dd>
-</dl>

-It must define the following 
-<a href="../../mpl/doc/refmanual/integral-constant.html">
-Itegral Constant</a>
-of type 
-<a href="../../mpl/doc/refmanual/bool.html">bool</a>:
-<dl>
 <dt><h4><code style="white-space: normal"><pre>
-ETI::is_polymorphic
+const char ETI::get_key() const;
 </pre></code></h4></dt>
 <dd>
+Retrieve the external key (aka GUID) for this class.
+</dd>
+
+<dt><h4><code style="white-space: normal"><pre>
+virtual void * construct(unsigned int count, ...) const;
+</pre></code></h4></dt>
+<dd>
+Construct an instance of the corresponding type
+with the include argument list.
+</dd>
+
+<dt><h4><code style="white-space: normal"><pre>
+virtual void * destroy(void const * const ptr ) const;
+</pre></code></h4></dt>
+<dd>
+Destroy an instance of this type. This calls the
+proper destructor and recovers allocated memory.
 </dd>

 </dl>
@@ -302,24 +329,88 @@ by the compiler.
 <p>
 <code style="white-space: normal"><h4><a target="extended_type_info_no_rtti.hpp" href="../../../boost/serialization/extended_type_info_no_rtti.hpp">
 extended_type_info_no_rtti</a></h4></code>
-is implemented in a way that doesn't rely on the existence RTTI. 
-However, it does require that all classes for which type id is to be used implement
-a virtual function of the signiture:
+is implemented in a way that doesn't rely on the existence RTTI.
+Instead, it requires that all polymorphic types be explicitly exported.
+In addition, if the export facility is to be used to serialize types
+through base class pointers, those types are required to implement
+a virtual function with the signature:
+
 <code><pre>
 virtual const char * get_key();
 </pre></code>
 which returns a unique string the most derived object this class.  
 This function must be virtual in order to implement the functionality required by
 <code style="white-space: normal">ETI::get_derived_extended_type_info</code>
-as described above.  
+as described above.
+
 <h3><a name="example">Example</a></h3>
 The test program <code style="white-space: normal"><a target="test_no_rtti" href="../test/test_no_rtti.cpp">test_no_rtti</a></code>
 implements this function in terms of the <code style="white-space: normal"><a target="extended_type_info_no_rtti.hpp" href="../../../boost/serialization/extended_type_info_no_rtti.hpp">
 extended_type_info</a></code> API above to return the export key associated with the class.  
-This requires that non-abstract types be exported.
+This requires that non-abstract types be exported. It also demonstrates the
+inter-operability between two different implementations of
+<code style="white-space: normal">extended_type_info</code>.

+<h3><a name="type_requirements">Requirements for Each Type</a></h3>
+Each type to be managed by the system must be
+"registered" individually. This is accomplished by instantiating
+templates.  For example, if the type T is to use the <code style="white-space: normal">type_info</code> system
+one would include the following code:
+
+<code style="white-space: normal"><pre>
+namespace boost {
+namespace serialization {
+template
+struct extended_type_info_typeid&lt;T&gt;;
+template
+struct extended_type_info_typeid&lt;const T&gt;;
+} // serialization
+} // boost
+</pre></code>
+
+For those using the serialization library, this step can be skipped
+as it is done automatically.  The serialization library includes
+the macro:
+
+<code style="white-space: normal"><pre>
+BOOST_CLASS_TYPE_INFO(
+    my_type, 
+    extended_type_info_typeid&lt;my_class&gt;
+)
+</pre></code>
+
+which is used to specify which <code>extended_type_info</code> system is to 
+be used for a given type.
+<p>
+<code>extended_type_info</code> includes a facility for constructing
+instances of types without knowing what the exact types are. This is done
+with the function 
+<code>
+virtual void * extended_type_info::construct(unsigned int count = 0, ...) const;
+</code>
+. For example:
+<br>
+<code><pre>
+struct base {
+...
+};
+struct derived : public base {
+...
+};
+...
+extended_type_info *eti = extended_type_info::find("my_class")
+base * b = eti-&gt;construct(...);
+</pre></code>
+<br>
+The <code>construct</code> takes an argument count and up to
+four parameters of any type.  The arguments are passed to the
+constructor of "my_class".
+
+
+A complete example of this can be found
+<a target="test_dll_plugin.cpp" href="../test/test_dll_plugin.cpp">here</a>
 <hr>
-<p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2005. 
+<p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2005-2009. 
 Distributed under the Boost Software License, Version 1.0. (See
 accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 </i></p>
@@ -7,11 +7,45 @@ License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 http://www.boost.org/LICENSE_1_0.txt)
 -->
 <head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<link rel="stylesheet" type="text/css" href="../../../boost.css">
-<link rel="stylesheet" type="text/css" href="style.css">
-<title>Serialization - FAQ</title>
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+    <link rel="stylesheet" type="text/css" href="../../../boost.css">
+    <link rel="stylesheet" type="text/css" href="style.css">
+    <title>Serialization - Tips and Tricks</title>
 </head>
 <body link="#0000ff" vlink="#800080">
+    <table border="0" cellpadding="7" cellspacing="0" width="100%" summary="header">
+        <tr>
+            <td valign="top" width="300">
+                <h3>
+                    <a href="../../../index.htm">
+                        <img height="86" width="277" alt="C++ Boost" src="../../../boost.png" border="0"></a></h3>
+            </td>
+            <td valign="top">
+                <h1 align="center">
+                    Serialization</h1>
+                <h2 align="center">
+                    Tips and Tricks</h2>
+            </td>
+        </tr>
+    </table>
+    <hr>
+This section will be used to list answers to questions raised in the mailing
+lists.  Most of these are due to subtle aspects of the library which are
+overlooked even though they might be described in the documentation.  Often,
+these issues are very easy to address - but can be excruciatingly difficult to
+find.  Should you have such an experience, feel free to vent your frustration
+in a constructive way by adding in your own item.  The best way to do this
+is to create a <a href="http://svn.boost.org/trac/boost/browser">"TRAK" item</a> 
+which includes the text you want to add to this list.
+
+<ul>
+<li><h4>
+</h4></li>
+</ul>
+<hr>
+<p>
+<i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2002-2009. Distributed
+under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt
+or copy at http://www.boost.org/LICENSE_1_0.txt) </i></p>
 </body>
 </html>
@@ -1,4 +1,4 @@
-<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <!--
 (C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com . 
@@ -42,10 +42,10 @@ http://www.boost.org/LICENSE_1_0.txt)
  </dl>
 </dl>

-This library includes a large number of files. The are organized and classified
-according to purpose listed in the above index. 
+This library includes a large number of files. They are organized and classified
+according to the purposes listed in the above index. 
 <p>
-<code style="white-space: normal">namespace</code> of a classes and templates is syncronized
+<code style="white-space: normal">namespace</code> of classes and templates is synchronized
 with the directory in which the file is found.  For example, the class declaration
 <pre><code>
 boost::archive::text_oarchive
@@ -58,7 +58,7 @@ is included with the following declaration
 <a name="userincludes">
 <h3>Files Included by User Programs</h3>
 Using this library entails including headers listed in this section.
-It should not be necessary to explictly include any other header files.
+It should not be necessary to explicitly include any other header files.

 <a name="archiveimplementations">
 <h4>Archive Implementations</h4>
@@ -95,7 +95,7 @@ boost/archive/text_oarchive.hpp
 <dt><a target="text_wiarchive" href="../../../boost/archive/text_wiarchive.hpp">
 boost/archive/text_wiarchive.hpp
 </a>
-<dd>wide character text input archive used forloading.</dd>
+<dd>wide character text input archive used for loading.</dd>

 <dt><a target="text_woarchive" href="../../../boost/archive/text_woarchive.hpp">
 boost/archive/text_woarchive.hpp
@@ -161,13 +161,14 @@ boost/serialization/export.hpp
 </a>
 <dd>For serialization of pointers to derived classes via key export.</dd>

-<dt><a target="is_abstract" href="../../../boost/serialization/is_abstract.hpp">
-boost/serialization/is_abstract.hpp
+<dt><a target="assume_abstract" href="../../../boost/serialization/assume_abstract.hpp">
+boost/serialization/assume_abstract.hpp
 </a>
-<dd>For serialization of pointers to abstract base classes.  A generic implementation
-of this is functional only on the most modern compilers.  This one is just
-a thin wrapper which permits one to specify "by hand" whether or not a base class
-is abstract or not.</dd>
+<dd>This is just a thin wrapper which permits one to explicitly specify that a 
+particular type is an abstract base class.  It is necessary to use this
+for compilers which don't support the boost type traits implementation of
+is_abstact.
+</dd>

 </dl>

@@ -184,7 +185,7 @@ boost/serialization/version.hpp
 <dt><a target="level" href="../../../boost/serialization/level.hpp">
 boost/serialization/level.hpp
 </a>
-<dd>To override the default implementaton level trait for a type.</dd>
+<dd>To override the default implementation level trait for a type.</dd>

 <dt><a target="tracking" href="../../../boost/serialization/tracking.hpp">
 boost/serialization/tracking.hpp
@@ -206,7 +207,7 @@ This group of headers includes templates which implement serialization for Stand
 Library or Boost Library templates.  Any program which uses these templates can
 invoke serialization of objects of these types just by including the corresponding header.
 <p>
-By convention, these header files are named:
+By convention these header files are named:

 boost/serialization/xxx.hpp

@@ -256,7 +257,7 @@ for in all archive implementations.  The serialization system relies on
 certain special types such as <code style="white-space: normal">class_id_type</code> and others to 
 record information in archives that is required to reconstruct the original
 data structure.  These are handled exactly as any other serializable type.
-That is, the can be handled as simple primitives such as they are in simple
+That is, they can be handled as simple primitives such as they are in simple
 text files, or with special code as they are in xml archives.
 </dd>

@@ -268,7 +269,7 @@ boost/archive/basic_text_iprimitive.hpp
 </a>
 </dt>
 <dd>
-Implementation of serialization of primitive types in terms of an character
+Implementation of serialization of primitive types in terms of character
 or wide character text streams. This is used in the implementation of text and
 xml archives.  Presumably this would be useful for implementations of other variations
 of text archives such as user friendly text or windows ini files.
@@ -282,7 +283,7 @@ boost/archive/basic_binary_iprimitive.hpp
 </a>
 </dt>
 <dd>
-Implementation of serialization of primitive types in terms of an character
+Implementation of serialization of primitive types in terms of character
 or wide character binary streams. 
 </dd>

@@ -293,16 +294,16 @@ boost/archive/basic_binary_oarchive.hpp
 boost/archive/basic_binary_iarchive.hpp
 </a>
 <dd>
-Implementation of serialization of all types in terms of an character
+Implementation of serialization of all types in terms of character
 or wide character binary streams.  This is factored out separately from the
 implementation of binary primitives above.  This may facilitate the creation of
-other types of binary archives in the future. It also preserves analogy and symetry with
+other types of binary archives in the future. It also preserves analogy and symmetry with
 the rest of the library which aids in understanding.
 </dd>
 <dt><a target="basic_text_oarchive" href="../../../boost/archive/basic_text_oarchive.hpp">
 boost/archive/basic_text_oarchive.hpp
 </a>
-<dt><a target="basic_text_iarchive" href="../../../boost/archive/basic_text_iarchive.hpp">
+<dt><a target="basic_te't_iarchive" href="../../../boost/archive/basic_text_iarchive.hpp">
 boost/archive/basic_text_iarchive.hpp
 </a>
 </dt>
@@ -314,12 +315,12 @@ boost/archive/basic_xml_iarchive.hpp
 </a>
 </dt>
 <dd>
-Implementation of serialization of all types in terms of an character
+Implementation of serialization of all types in terms of character
 or wide character text streams. These classes specify archive type specific
 behavior on a type by type basis.  For example, <code style="white-space: normal">basic_xml_oarchive.hpp</code>
-includes code to guarentee that any object not attached to a name will 
+includes code to guarantee that any object not attached to a name will 
 trap during compile time. On the other hand, <code style="white-space: normal">basic_text_oarchive.hpp</code>
-contains code to strip out and ingore any names attached to objects.
+contains code to strip out and ignore any names attached to objects.
 <p>
 <dt><a target="common_iarchive" href="../../../boost/archive/detail/common_iarchive.hpp">
 boost/archive/detail/common_iarchive.hpp
@@ -328,7 +329,7 @@ boost/archive/detail/common_iarchive.hpp
 boost/archive/detail/common_oarchive.hpp
 </a>
 <dd>
-All archive implmentations are derived from these header files.  They provide
+All archive implementations are derived from these header files.  They provide
 the interface to the internal implementation details of the library.
 </dd>

@@ -336,11 +337,54 @@ the interface to the internal implementation details of the library.

 <a name="archiveinternals">
 <h4>Archive Internals</h4>
-The header files in the directory 
-<a target="basic_xml_iarchive" href="../../../boost/archive/detail">boost/archive/detail</a>
-implement parts of the library itself.  The should never need to be changed by users
-of the library in order to implement either a class serialization or a new
-archive type.
+ 
+The interface (see <a target="detail" href="archives.html">Archive Concepts</a>) 
+and implementation are factored out into separate classes to minimize code duplication.
+
+These files are found in the directory
+<a target="boost_archive_detail" href="../../../boost/archive/detail">boost/archive/detail</a>.  
+These are included as necessary by the archive class implementations listed above.
+This has the unfortunate side effect of making the implementation less transparent.
+Users should never find it necessary to change these files.
+<p>
+The following discussion is based on the
+<a target="class_diagram" href="class_diagram.html">class diagram</a>.
+<p>
+<dt><a target="interface_iarchive" href="../../../boost/archive/detail/interface_iarchive.hpp">
+boost/archive/detail/interface_iarchive.hpp</a>
+<dt><a target="interface_iarchive" href="../../../boost/archive/detail/interface_iarchive.hpp">
+boost/archive/detail/interface_iarchive.hpp</a>
+<dd>
+Here are the declarations and definitions for the 
+<a href="archives.html">archive_concept</a>. This class redirects calls to the 
+archive interface to a function named <code>save_override</code> in the most derived
+archive class. 
+</dd>
+<code>save_override</code> is declared and implemented in each class in
+the archive hierarchy.
+
+<pre><code>
+template&lt;class T&gt;
+void save_override(T &amp; t, BOOST_PFTO int){
+    // All for otherwise unhandled types are forwarded to the base class.
+    // This emulates behavior for function overloading.
+    this-&gt;base::save_override(t, 0);
+}
+void save_override(const some_type &amp; t, int){
+    // any special handling for some type
+    // this will usually entail forwarding some other operation
+    // in the most derived class.
+    this-&gt;This()-&gt;...
+    // or in one of its parents basic_text_oprimitive
+    this-&gt;This()-&gt;save(static_cast&lt;int&gt;(t));
+}
+... // other special type handling
+</code></pre>
+
+Note the usage of
+<a target="detail" href="implementation.html#functiontemplateordering">Partial Function Template Ordering</a>
+to permit the correct save implementation to be selected.  
+</dd>

 <a name="codemodules">
 <h4>Archive Library Code Modules</h4>
@@ -358,13 +402,13 @@ library code for that part of the code which only depends upon the archive type.
 Building of the library generates and compiles code for all archives implemented.

 <ul>
-  <li>Serialization of user and primitive types runs a top speed. This is a noticiable
+  <li>Serialization of user and primitive types runs at top speed. This is a noticeable
  difference with a previous version of the library which did not use templates for archives.
  <li>Library implementation code that never changes need only be compiled once
  rather than each time a user's program is recompiled.  This can save much
  development time.
  <li>Headers which solely related to implementation need only be included
-  in the library code modules. This prevents a user program from accidently 
+  in the library code modules. This prevents a user program from accidentally 
  depending on an implementation feature of the serialization library.
  <li>In building the library I came to the conclusions that there can arise
  situations regarding static code/data instantiation that could not be 
@@ -373,22 +417,22 @@ Building of the library generates and compiles code for all archives implemented
 </ul>	
 An example of this is the usage of the spirit library in the library.
 It takes a long time to compile and includes lots of other files. Having this
-only in the library is much more convenient that having to include in every
+only in the library is much more convenient that having to include it in every
 program which uses xml serialization.

 <a name="dataflowiterators">
 <h4>Dataflow Iterators</h4>
 In the course of developing this library, it became convenient to make a set
 of composable iterator adaptors for handling archive text.  Applications include
-escaping and unescaping xml text, implementing to/from base64 conversion among
+escaping and unescaping xml text and implementing to/from base64 conversion among
 others.
 <p>
-This is a ripe topic in itself. Its touched upon by the 
+This is a ripe topic in itself. It's touched upon by the 
 <a href="../../../libs/iterator/doc/index.html">boost iterator</a> libraries, 
 <a href="http://www.zib.de/weiser/vtl/index.html">View Template Library</a>, and others. 
 <p>
 The code for these iterators is really independent of this library.  But since it
-hasn't been and probably won't be reviewed outside of this context. I've left in a directory 
+hasn't been and probably won't be reviewed outside of this context. I've left it in a directory 
 local to the serialization library:
 <a target="archiveiterators" href="../../../boost/archive/iterators">boost/archive/iterators</a>.
 These iterators are described in 
@@ -30,24 +30,24 @@ http://www.boost.org/LICENSE_1_0.txt)
  <li>27 Feb 2002
    <ul>
      <li>divide interface from implementation for class 
-          serialization to permit compiliation on gcc
-      <li>improved template instantanciation for type templates
+          serialization to permit compilation on gcc
+      <li>improved template instantantation for type templates
    </ul>
  <li>18 Mar 2002 - draft #2 uploaded to boost
    <ul>
      <li>elminated locale effects on archives
      <li>added signature and library version to archive header
-      <li>improved detection of errors when objects are serializationed 
-          as pointers and subsequently serializationed as objects
+      <li>improved detection of errors when objects are serialized 
+          as pointers and subsequently serialized as objects
      <li>permit non-portable binary archives
-      <li>implement work around for systems such as MSVC 6.0 that
-          don'tsupport partial ordering
+      <li>implement workaround for systems such as MSVC 6.0 that
+          don't support partial ordering
    </ul>
  <li>16 May 2002 - draft #3 uploaded to boost
    <ul>
      <li>Ability to specify serialization of other templates in a
          non-intrusive way.
-      <li>Included and example which uses boost::shared_ptr.
+      <li>Included an example which uses boost::shared_ptr.
      <li>improved documentation
      <li>More test cases
      <li>More testing and documentation of obscure situtations
@@ -65,7 +65,7 @@ http://www.boost.org/LICENSE_1_0.txt)
      <li>minor corrections
      <li>Additions to documentation to explicitly address issues of
          exception safety.
-      <li>More test cases/demos to illustrate handlling of the above issues.
+      <li>More test cases/demos to illustrate handling of the above issues.
      <li>Additions to documentation to include rationale for not depending
          on type_id
      <li>Implementation of serialization of boost::shared_ptr.
@@ -127,8 +127,8 @@ http://www.boost.org/LICENSE_1_0.txt)
    </ul>
  <li>1 November 2004 - final changes for first boost official release 1.32 .
    <ul>
-       <li>Adjustments to address make package compatible with two-phase lookup.
-       <li>Many small adjustments to accomdate quirks of various compilers.
+       <li>Adjustments to address package compatible with two-phase lookup.
+       <li>Many small adjustments to accommodate quirks of various compilers.
       <li>A few bug fixes.
    </ul>
 </ol>
@@ -26,20 +26,13 @@ http://www.boost.org/LICENSE_1_0.txt)
 </table>
 <hr>
 <dl class="page-index">
-  <dt><a href="#functiontemplateordering">Partial Function Template Ordering</a>
  <dt><a href="#charencoding">Character Encoding</a>
-  <dt><a href="#tempatesyntax">Template Invocation syntax</a>
-  <dt><a href="#partialtemplatespecialization">Partial Template Specialization</a>
  <dt><a href="#othercompilerissues">Specific Compiler/Library Issues</a>
  <dl class="page-index">
-    <dt><a href="#gcc3x">GCC 3.X, 4.X</a>
-    <dt><a href="#gcc295">GCC 2.95</a>
+    <dt><a href="#gcc4x">44.X</a>
    <dt><a href="#intel80">Intel 8.0</a>
    <dt><a href="#vc80">Visual C++ 8.0</a>
    <dt><a href="#vc71">Visual C++ 7.1</a>
-    <dt><a href="#vc70">Visual C++ 7.0</a>
-    <dt><a href="#vc6">Visual C++ 6.0</a>
-    <dt><a href="#borland">Borland 5.64 and 5.51</a>
    <dt><a href="#comeau">Comeau 4.3.3</a>
    <dt><a href="#codewarrior9">Code Warrior 9.x</a>
    <dt><a href="#codewarrior">Code Warrior 8.3</a>
@@ -49,86 +42,11 @@ http://www.boost.org/LICENSE_1_0.txt)
  </dl>
 </dl>

-<h3><a name="functiontemplateordering">Partial Function Template Ordering</a></h3>
-Not all C++ compilers correctly support partial function template ordering (PFTO).
-For these compilers, the following code will fail to compile:
-<pre><code>
-template&lt;class Archive, class T&gt;
-void serialize(
-    Archive & ar, 
-    T & t, 
-    const unsigned int file_version
-){
-    ...
-}
-
-template&lt;class Archive, class T&gt;
-void serialize(
-    Archive & ar, 
-    my_template&lt;T&gt & t, 
-    const unsigned int file_version
-){
-    ...
-}
-</pre></code>
-The serialization library works around this issue by using a different
-default definition of the first template:
-<pre><code>
-template&lt;class Archive, class T&gt;
-void serialize(
-    Archive & ar, 
-    T & t, 
-    const unsigned long int file_version  // Note: change to long
-){
-    ...
-}
-</pre></code>
-Now, the second template is not matched with the first one so there
-is no PFTO and no compile error.  When the serialization library invokes
-<pre><code>
-serialize(ar, t, 0);
-</pre></code>
-the function declaration is first matched against templates with
-an integer for the third argument.  If there is a match, the matching
-template is instantiated and later invoked.  If there is no match,
-an attempt is made to match other templates by converting arguments to other types.
-In this case the third argument can be converted to long to match
-the first template - which is the default.  So in this case, the first
-template will be instantiated and later invoked.  We have managed to
-use function overloading to achieve the same effect as PFTO
-were it correctly implemented.
-<p>
-This depends upon undefined behavior of a compiler already
-determined to be non-conforming.  In other words, there is no 
-guarantee that this will work on all compilers.  If a compiler does not
-correctly support PFTO and this method cannot be used to workaround
-it, non-intrusive serialization cannot be supported for that compiler.
-As of this writing, such a compiler has not been encountered.
-<p>
-It turns out that using this "trick" can create problems with
-compilers that DO correctly support PFTO.  For this reason we
-define a macro <code style="white-space: normal">BOOST_PTFO</code> which 
-is defined to be <code style="white-space: normal">long</code>
-for non-conforming compilers and nothing for conforming ones. So
-the default definition is really:
-The serialization library works around this issue by using a different
-default definition of the first template:
-<pre><code>
-template&lt;class Archive, class T&gt;
-void serialize(
-    Archive & ar, 
-    T & t, 
-    const unsigned BOOST_PFTO int file_version  // Note: change to BOOST_PFTO
-){
-    ...
-}
-</pre></code>
-
 <h3><a name="charencoding">Character Encoding</a></h3>
 The whole question of character encoding combined with wide characters
 is much more complicated than it would seem to be. The current library
 defines in 3 formats (text, binary, and XML), wide and narrow characters, 
-an attempts to be portable between compiler libraries.  The results of 
+and attempts to be portable between compiler libraries.  The results of 
 a rather long consideration of all these factors has been to set
 default encoding according to the following rules.
 <ul>
@@ -149,7 +67,7 @@ default encoding according to the following rules.
 </ul>
 This character encoding is implemented by changing the <code style="white-space: normal">locale</code> of the
 i/o stream used by an archive when the archive is constructed, the stream
-local is changed back to its original value. This action can be overridden 
+locale is changed back to its original value. This action can be overridden 
 by specifying <code style="white-space: normal">boost::archive::no_codecvt</code>
 when the archive is opened.  In this case, the stream <code style="white-space: normal">locale</code> will
 not be changed by the serialization library.
@@ -175,42 +93,18 @@ do the following.
  <li>Create the archive with the flag <code style="white-space: normal">no_codecvt</code>.
 </ul>
 Naturally, the input process has to be symmetrical.
-<h3><a name="partialtemplatespecialization">Partial Template Specialization</a></h3>
-Compilers which fail to support partial template specialization will fail to compile
-the following code.  To make this compiler, the <code style="white-space: normal">const</code> has to be removed.
-<pre><code>
-void f(A const* a, text_oarchive& oa)
-{
-  oa << a;
-}
-</code></pre>
-<h3><a name="tempatesyntax">Template Invocation syntax</a></h3>
-Some compilers may not recognize the syntax:
-<pre><code>
-ar.template register_type&lt;T&gt;();
-</code></pre>
-for "registering" derived pointers of polymorphic classes.  The actual 
-function prototype is:
-<pre><code>
-template&lt;T&gt;
-void register_type(T * t = NULL);
-</code></pre>
-so that one may write <code style="white-space: normal">ar.register_type(static_cast&lt;T *&gt;(NULL))</code> instead of
-the syntax described above.
-</ul>
 <h3><a name="othercompilerissues">Specific Compiler/Library Issues</a></h3>
-
-<h4><a name="gcc3x">GCC 3.X, 4.X</a></h4>
+<h4><a name="gcc4x">GCC 4.X</a></h4>
 <ul>
    <li>GCC versions for Cygwin and MinGW fail to support wide character I/O.  
    So all tests using wide char I/O fail.  Note that if wide character I/O support
    is added with STLPort, all tests complete successfully.
    <li>This compiler generates long warning messages related to the usage of
    non virtual destructors in polymorphic classes.  These warnings have been
-    carfully considered and the code that generates these warning has been 
+    carefully considered and the code that generates these warning has been 
    unchanged.  In this case the warning should should be ignored as in certain
    usages of the library, making the destructors virtual could lead to problems.
-    As an alternative, base class destructors have been make "protected" to
+    As an alternative, base class destructors have been made "protected" to
    address the concerns that motivate these warning messages.  When building
    the serialization library and tests with bjam, these warnings are suppressed. 
    When building one's own applications, these warnings can be suppressed by
@@ -220,17 +114,7 @@ the syntax described above.
    -Wno-ctor-dtor-privacy
    </code></pre>
 </ul>
-<h4><a name="gcc295">GCC 2.95</a></h4>
-All of the above plus:<br>
-<ul>
-    <li>The serialization library depends on the templeted stream implemention
-    to function properly.  So STLPort must be used to build the library.
-    <li>Polymorphic archive tests fail.
-    <li>XML serialization only works with version 1.6x of spirit. In order to build 
-    and use this library with this compiler, one must use version 1.6x rather than the 
-    latest version shipped with boost. See <a href="release.html">Release Notes</a>. 
-</ul>
-<h4><a name="Intel80">Intel C++ 8.0</a></h4>
+<h4><a name="intel80">Intel C++ 8.0</a></h4>
 No known issues. All tests compile and run in debug and release modes.

 <h4><a name="vc80">Visual C++ 8.0</a></h4>
@@ -245,40 +129,39 @@ line by including the following switch:

 <h4><a name="vc71">Visual C++ 7.1</a></h4>
 Derivation from an archive class defined in a DLL as described in ... will not work.
-This is due to the way that VC++ handles templeted code with __decl(dllexport) and
+This is due to the way that VC++ handles templated code with __decl(dllexport) and
 __decl(dllimport) specifications.  Basically, this compiler requires that all the
 instantiations have the same specification - even though they have different
 template arguments. The example <code style="white-space: normal">
-demo_portable_iarchive.cpp</code> would have to reformulated as a library or dll
+demo_portable_iarchive.cpp</code> would have to be reformulated as a library or dll
 similar to the pre-defined archives in order to function.
 <p>
 This compiler does not have RTTI or exception handling turned on by default.  Although
 they are not strictly necessary to use the serialization package, the example and test
-program presume that they are enabled.  So be sure your command line or IDE settings 
-enable these features if you want
-these switches are enabled if you want to build and run these programs.
+programs presume that they are enabled.  So be sure your command line or IDE settings 
+enable these features if you want to build and run these programs.
 <p>
 This compiler can treat <code style="white-space: normal">wchar_t</code> as either
 a short integer or an intrinsic type.
 If <code style="white-space: normal">/Zc:wchar_t</code> is specified on the
 compile command line, <code style="white-space: normal">wchar_t</code> will be 
 considered an intrinsic type - otherwise
-it will be treated as a synonym for a 16 bit integer.  The libary can be used
-either way - <strong>BUT</strong> - both the libray <strong>AND</strong> the application 
+it will be treated as a synonym for a 16 bit integer.  The library can be used
+either way - <strong>BUT</strong> - both the library <strong>AND</strong> the application 
 must be  compiled with the same switch settings.  Note that <code style="white-space: normal">BJAM</code>
 includes this switch by default.  So if want to use the libraries that
 <code style="white-space: normal">BJAM</code> builds, you should include this switch
 when you compile your own applications.
 <h5>Using the Visual C++ IDE</h5>
 The library includes a VC++ 7.1 "Solution" - <code style="white-space: normal">BoostSerializationLibrary</code>
-along with of a set of project files - one for each demo and test. Consider the following if you
-decided to use these configurations.
+along with a set of project files - one for each demo and test. Consider the following if you
+decide to use these configurations.
 <ul>
    <li>The projects assume that the tests have been built with bjam using the default
    locations.  This will result in a <code style="white-space: normal">bin</code> subdirectory
    within one's main boost directory.  Below this there is a whole structure which maintains 
    object and library files according to the type of build.  The easiest way to build this is to
-    invoke the runtest script which uses bjam. (see below)  If the libraries are not in these locations,
+    invoke the runtest script which uses bjam (see below).  If the libraries are not in these locations,
    the projects will have to be modified accordingly.
    <li>There are project configurations for all the combinations of build variants that boost
    supports. That is for release, debug, static, static multi-threading, etc..
@@ -312,77 +195,6 @@ decided to use these configurations.
    in sync with those included here.
 </ul>

-<h4><a name="vc70">Visual C++ 7.0</a></h4>
-<ul>
-    <li>The "pimpl" demo fails to link.  Cause and workaround for this is unknown
-    <li>XML serialization only works with version 1.6x of spirit.  In order to build and use this
-    library with this compiler, one must use version 1.6x rather than the latest version
-    shipped with boost.  See <a href="release.html">Release Notes</a>.
-    <li>This compiler does not support partial template specialization.  
-    The implementation of the new <code>shared_ptr</code> serialization depends upon
-    compiler support for partial template specialization.  This compiler doesn't implement this
-    feature. In order to serialize <code style="white-space: normal">shared_ptr&lt;A&gt;</code>,
-    invoke the macro <code style="white-space: normal">BOOST_SERIALIZATION_SHARED_PTR(A)</code>
-    in the header code.
-    <li>Lack of support for partial template specialization also creates problems for
-    serialization of <code style="white-space: normal">std::map</code>.  In order to serialize
-    instances of this type include the invocation of BOOST_BROKEN_COMPILER_TYPE_TRAITS_SPECIALIZATION
-    for the key type of the map.
-</ul>
-<h4><a name="vc6">Visual C++ 6.5</a></h4>
-all the above issues for Visual C++ 7.0 plus:
-<ul>
-    <li>Out of line template definitions are not recognized and fail with a confusing
-    error message.  To function save/load/serialize member function templates must be defined
-    within the class definition.  This feature is essential to <code style="white-space: normal">demo_pimpl</code>. Hence,
-    this program will fail to compile.  In this case the problem can't be worked around and
-    still demonstrate this facility.
-    <li>This compiler does not support <code style="white-space: normal">wchar_t</code> as a separate type.  It defines
-    <code style="white-space: normal">wchar_t</code> as an alias for <code style="white-space: normal">short int</code>.  In general things will still
-    function.  However certain customization, such as overloading archive operators for
-    saving/loading wide character arrays would produce surprises in this environment.
-    <li>Under certain circumstances, a program will fail to link with the message:
-    LIN1179 - "invalid or corrupt file: duplicate comdat".  According
-    to <a href="http://groups.google.com/groups?th=8a05c82c4ffee280">
-    http://groups.google.com/groups?th=8a05c82c4ffee280
-    </a> (look for P78)
-    A LNK1179 error occurs when:
-    <ul>
-        <li>The template class takes at least two arguments.
-        <li>The template is used at least two times with identical first
-        and different second arguments.
-        <li>The static member variable is of an object type with at least one
-        base class. (In another scenario it also occurred using a member
-        without a base class.)
-    </ul>
-    Working around this in the implementation of the library for this compiler
-    entailed a ridiculous amount of effort.  Even so, the effort wasn't entirely succesful.
-    With this compiler, this message will still appear under the following conditions:
-    <ul>
-        <li>When serializing a class with multiple base classes.  This problem causes two 
-        failure in the test suite.  I have been unable to divise a way to work around this.
-        <li>Using more than one kind of archive in the same code module. This should be easy 
-        to work around in practice.
-    </ul>
-    <li>Code modules exceeding some undetermined size that use the library will fail with
-    <i>fatal error C1204: compiler limit : internal structure overflow</i>.  This can be addressed
-    by dividing the module into smaller ones.
-</ul>
-<h4><a name="borland">Borland 5.64 and 5.51</a></h4>
-<ul>
-    <li><code style="white-space: normal">enum</code> data members cannot be serialized.
-    Conversion to/from integers will work around the problem.
-    <li>If class serialize functions are not accessable either by making them public or by
-    including <code style="white-space: normal">friend</code> declarations as described in 
-    <a href="serialization.html#member">Class Serialization - Member Function</a>, the
-    will compile but fail at runtime.
-    <li>Tests using custom extended type which doesn't use rtti fails. (5.64 only !).
-    <li>Tests built in release mode fail. This seems to be an issue with the boost test system
-    with this compiler.
-    <li>XML serialization only works with version 1.6x of spirit. In order to build 
-    and use this library with this compiler, one must use version 1.6x rather than the 
-    latest version shipped with boost. See <a href="release.html">Release Notes</a>. 
-</ul>
 <h4><a name="comeau">Comeau 4.3.3</a></h4>
 <ul>
    <li>This compiler fails to make a DLL with export under windows.
@@ -393,7 +205,7 @@ all the above issues for Visual C++ 7.0 plus:

 <h4><a name="codewarrior9">Code Warrior 9.x</a></h4>
 <ul>
-    <li>Some tests and demos demos fail - still under investigation
+    <li>Some tests and demos fail - still under investigation
 </ul>

 <h4><a name="codewarrior">Code Warrior 8.3</a></h4>
@@ -413,7 +225,7 @@ Several compilers, including Visual C++ 6.0, use an older dinkumware library.
 These platforms have several issues: 
 <ul>
    <li>The dinkumware library shipped with this compiler does not change the locale facet
-    of an i/o stream unless the <code style="white-space: normal">imbue</code> function is called before the the
+    of an i/o stream unless the <code style="white-space: normal">imbue</code> function is called before the
    stream is opened.  In order to use this library with this environment to generate UTF-8
    files, one cannot depend on the "automatic" setting of locale that archives implement. The
    stream locale must be set explicitly on the stream before an archive is opened on it.  The
@@ -425,17 +237,17 @@ These platforms have several issues:

 <h4><a name="stlport">STLPort 4.5.3</a></h4>
 <ul>
-    <li>when built to use dynamic linking versions of C++ runtime code (<runtime-link>dynamic)
+    <li>when built to use the dynamic linking versions of the C++ runtime code (<runtime-link>dynamic)
    all tests fail to link.  This is due to a missing symbol in the stlport library related
    to custom codecvt facets.
-    <li>the test_set fails to run correctly. It seems the hashed set interator doesn't
+    <li>the test_set fails to run correctly. It seems the hashed set iterator doesn't
    implement the ++ operator correctly.  This causes the test to fail by consuming all available
    memory.  Given this, this test is commented out.
 </ul>

 <hr>
 <p>Revised 1 November, 2004 
-<p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2002-2004. 
+<p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2002-2015.
 Distributed under the Boost Software License, Version 1.0. (See
 accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 </i></p>
@@ -0,0 +1,91 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!--
+(C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com . 
+Use, modification and distribution is subject to the Boost Software
+License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+-->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<link rel="stylesheet" type="text/css" href="../../../boost.css">
+<link rel="stylesheet" type="text/css" href="style.css">
+<title>Serialization - Proposed Case Studies</title>
+</head>
+<body link="#0000ff" vlink="#800080">
+<table border="0" cellpadding="7" cellspacing="0" width="100%" summary="header">
+  <tr> 
+    <td valign="top" width="300"> 
+      <h3><a href="../../../index.htm"><img height="86" width="277" alt="C++ Boost" src="../../../boost.png" border="0"></a></h3>
+    </td>
+    <td valign="top"> 
+      <h1 align="center">Serialization</h1>
+      <h2 align="center">Proposed Case Studies</h2>
+    </td>
+  </tr>
+</table>
+<hr>
+<dl class="index">
+  <dt><a href="#functionobject">Serializing a Function Object</a></dt>
+  <dt><a href="#archiveadaptor">Archive Adaptors</a></dt>
+  <dt><a href="#archivehelper">Archive Helpers</a></dt>
+</dl>
+
+These are not part of the library itself, but rather
+techniques on how to use the library to address specific situations.
+
+<h2><a name="functionobject"></a>Serializing a Function Object</h2>
+An example on how to serialize a function object.  I believe this
+could be done by serializing a pointer to the object in question.  Since
+the Serialization library resurrects a pointer of the correct type
+this should be easily implementable.
+<p>
+If a group of function objects were all derived from the
+same polymorphic base class - perhaps via multiple inheritance,
+then the function object effectively becomes a "variable" which
+encapsulates code.
+<p>
+This case study would show how to do this.
+
+<h2><a name="archiveadaptor"></a>Archive Adaptors</h2>
+
+Often users want to add their own special functionality to an
+existing archive.  Examples of this are performance enhancements
+for specific types, adjustment of output syntax for xml archives,
+and logging/debug output as archives are written and/or read.
+If this functionality is implemented as an "adaptor" template
+which takes the base class as a template argument, such functionality could be
+appended to any archive for which that functionality makes sense.
+For example, an adaptor for generating an xml schema could be
+appended to both wide and narrow character versions of xml archives.
+<p>
+This case study would show how to make a useful archive adaptor.
+
+<h2><a name="archivehelper"></a>Archive Helpers</h2>
+Some types are not serializable as they stand.  That is - they
+do not fulfill the requirements of the "Serializable Concept".
+The iconic example of this is boost::shared_ptr.  Sometimes
+these types could be made serializable by adding code inside
+the library.  Of course, doing that would create a lifetime
+of unpaid employment for the library author. Rather than
+adding a bunch of special code to the library itself, this
+code can packaged as a "helper" or "mix-in" class.  Then
+a new archive is derived from both the "base" archive class
+AND the "helper" class.  This is how boost::shared_ptr
+has been implemented.
+<p>
+It would also be possible to make a "generic runtime helper"
+which would effectively extend the API of the library.  Previously
+the library included such a helper class.  It was removed
+in favor of the current implementation.  But this functionality
+should be added back in with another adaptor which would
+become part of the library.
+
+<hr>
+<p>Revised 1 November, 2008 
+<p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2002-2008. 
+Distributed under the Boost Software License, Version 1.0. (See
+accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+</i></p>
+</body>
+</html>
@@ -28,9 +28,6 @@ http://www.boost.org/LICENSE_1_0.txt)
 <dl class="index">
  <dt><a href="#Requirements">Requirements</a></dt>
  <dt><a href="#otherimplementations">Other Implementations</a></dt>
-  <!--
-  <dt><a href="#footnotes">Footnotes</a></dt>
-  -->
 </dl>
 <p>Here, we use the term <strong>"serialization"</strong> to mean
 the reversible deconstruction of an arbitrary set of C++ data structures
@@ -130,7 +127,7 @@ XML, or some other created by the user of this library.
      This library has similar goals to this one. Some aspects of the
      implemenation are also similar.  As of this writing, it would seem that:
      <ul>
-          <li>Portability(1) is guarenteed only for recent versions of GCC.
+          <li>Portability(1) is guaranteed only for recent versions of GCC.
          <li>Versioning(3) of class definitions is not explicitly supported by
          the library.
          <li>it doesn't seem to automatically account for shared pointers(5).
@@ -0,0 +1,30 @@
+<html>
+<head>
+<title>Boost Library Status Automatic Test</title>
+</head>
+<body bgcolor="#ffffff" text="#000000">
+<table border="0">
+<tr>
+<td><img border="0" src="../../../boost.png" width="277" height="86"></td>
+<td>
+<h1>Library Status: serialization</h1>
+<b>Run Date:</b> 02:42:48 UTC, Tuesday 10 June 2008
+</td>
+</table>
+<br>
+<table border="1" cellspacing="0" cellpadding="5">
+<tr>
+<td rowspan="2">Test Name</td>
+<td align="center" >gcc-3.4.4</td>
+</tr><tr>
+<td align="center" >profile</td>
+</tr><tr><td>peformance_array_binary_archive</a></td><td align="right">Pass <a href="profile1.txt"><i>Profile</i></a></td></tr>
+<tr><td>peformance_array_text_archive</a></td><td align="right">Pass <a href="profile1.txt"><i>Profile</i></a></td></tr>
+<tr><td>peformance_array_text_warchive</a></td><td align="right"><i>Missing</i></td></tr>
+<tr><td>peformance_array_xml_archive</a></td><td align="right">Pass <a href="profile1.txt"><i>Profile</i></a></td></tr>
+<tr><td>peformance_array_xml_warchive</a></td><td align="right"><i>Missing</i></td></tr>
+<tr><td>performance_iterators</a></td><td align="right">Pass <a href="profile2.txt"><i>Profile</i></a></td></tr>
+<tr><td>performance_iterators_base64</a></td><td align="right">Pass <a href="profile3.txt"><i>Profile</i></a></td></tr>
+</table>
+</body>
+</html>
@@ -31,7 +31,7 @@ the "Handle Body Idiom". Included in this library is a program called
 <a href="../example/demo_pimpl.cpp" target="demo_impl_cpp">demo_pimpl.cpp</a> 
 which illustrates how this is used. The file 
 <a href="../example/demo_pimpl_A.cpp" target="demo_impl__Acpp">demo_pimpl_A.hpp</a>
-contains the declaration of the a class that hides its implementation
+contains the declaration of the A class that hides its implementation
 by including a pointer to struct B that is only defined as a pointer.
 <pre><code>
 // class whose declaration is hidden by a pointer
@@ -41,12 +41,15 @@ struct A {
    // class a contains a pointer to a "hidden" declaration
    B *pimpl;
    template&lt;class Archive&gt;
-    void serialize(Archive & ar, const unsigned int file_version);
+    void serialize(Archive &amp; ar, const unsigned int file_version);
    A();
 };
 </code></pre>
-Serialization of A requires access to the definition of B in order so it
-is defined in the separately compiled module:
+Serialization of A requires access to the definition of B. But that doesn't mean
+that it requires the this access from the header file.  Since B is a pointer,
+a declaration of class B is sufficient.  The implemenation of the serialization
+of A includes the definition of class B defined in the separately compiled module:
+
 <a href="../example/demo_pimpl_A.cpp" target="demo_impl_A_cpp">demo_pimpl_A.cpp</a>
 by:
 <pre><code>
@@ -56,8 +59,8 @@ by:
 struct B {
    int b;
    template&lt;class Archive&gt;
-    void serialize(Archive & ar, const unsigned int file_version){
-        ar & b;
+    void serialize(Archive &amp; ar, const unsigned int file_version){
+        ar &amp; b;
    }
 };

@@ -71,8 +74,8 @@ A::~A(){

 // now we can define the serialization for class A
 template&lt;class Archive&gt;
-void A::serialize(Archive & ar, const unsigned int file_version){
-    ar & pimpl;
+void A::serialize(Archive &amp; ar, const unsigned int file_version){
+    ar &amp; pimpl;
 }
 </code></pre>
 As described in <a href="bibliography.html#10">[10]</a> this brings the
@@ -85,12 +88,12 @@ following advantages:
 So, we compile the modules and everything is fine.  However when we
 link, we get an error.  Two symbols are undefined:
 <pre><code>
-void A::serialize(boost::archive::text_oarchive & ar, const unsigned int file_version);
-void A::serialize(boost::archive::text_iarchive & ar, const unsigned int file_version);
+void A::serialize(boost::archive::text_oarchive &amp; ar, const unsigned int file_version);
+void A::serialize(boost::archive::text_iarchive &amp; ar, const unsigned int file_version);
 </code></pre>
 The problem is that when compiling the above code, 
 there is no instantiation of the <code style="white-space: normal">serialize</code> template.
-There can't be as its not "known" what types of archives
+There can't be as it's not "known" what types of archives
 the serialization is going to be used with.  So these functions are "missing"
 when an attempt to link is made.  The solution is to explicitly instantiate
 serialization code for those archives which are going to be used.  In this
@@ -100,11 +103,11 @@ example, including the the following code in any *.cpp file does just that:
 #include &lt;boost/archive/text_oarchive.hpp&gt;

 template void A::serialize&lt;boost::archive::text_iarchive&gt;(
-    boost::archive::text_iarchive & ar, 
+    boost::archive::text_iarchive &amp; ar, 
    const unsigned int file_version
 );
 template void A::serialize&lt;boost::archive::text_oarchive&gt;(
-    boost::archive::text_oarchive & ar, 
+    boost::archive::text_oarchive &amp; ar, 
    const unsigned int file_version
 );
 </code></pre>
@@ -112,7 +115,7 @@ The program should now link as well as compile.
 <p>
 The downside of this is that one has to know which archives are going 
 to be used with hidden serializations.  This is an effect of using template
-driven code.  One can invoke explicity instantiation for all known templates and
+driven code.  One can invoke explicitly instantiation for all known templates and
 presume that the linker will exclude unreferenced code.  This should
 work but is platform dependent.
 <hr>
@@ -0,0 +1,170 @@
+<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!--
+(C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com . 
+Use, modification and distribution is subject to the Boost Software
+License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+-->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<link rel="stylesheet" type="text/css" href="../../../boost.css">
+<link rel="stylesheet" type="text/css" href="style.css">
+<title>Serialization - Private Base Classes</title>
+</head>
+<body link="#0000ff" vlink="#800080">
+<table border="0" cellpadding="7" cellspacing="0" width="100%" summary="header">
+  <tr> 
+    <td valign="top" width="300"> 
+      <h3><a href="../../../index.htm"><img height="86" width="277" alt="C++ Boost" src="../../../boost.png" border="0"></a></h3>
+    </td>
+    <td valign="top"> 
+      <h1 align="center">Serialization</h1>
+      <h2 align="center">Private Base Classes</h2>
+    </td>
+  </tr>
+</table>
+<hr>
+In many cases, serialization of private or protected base classes present no special problems.
+This is true for both simple classes and types as well as pointers to those
+classes and types. That is, the following program compiles and runs exactly as one would expect.
+<pre><code>
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// test_private_base.cpp
+
+// (C) Copyright 2009 Eric Moyer - http://www.rrsd.com . 
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include &lt;fstream&gt;
+#include &lt;boost/config.hpp&gt;
+#if defined(BOOST_NO_STDC_NAMESPACE)
+namespace std{ 
+    using ::remove;
+}
+#endif
+
+#include &lt;boost/serialization/access.hpp&gt;
+#include &lt;boost/serialization/base_object.hpp&gt;
+#include &lt;boost/serialization/export.hpp&gt;
+
+class Base {
+    friend class boost::serialization::access;
+    int m_i;
+    template&lt;class Archive&gt;
+    void serialize(Archive &amp; ar, const unsigned int version){
+        ar &amp; BOOST_SERIALIZATION_NVP(m_i);
+    }
+protected:
+    bool equals(const Base &amp;rhs) const {
+        return m_i == rhs.m_i;
+    }
+    Base(int i = 0) :
+        m_i(i)
+    {}
+};
+
+class Derived : private Base {
+    friend class boost::serialization::access;
+private:
+    Base &amp; base_cast(){
+        return static_cast&lt;Base &amp;&gt;(*this);
+    }
+    template&lt;class Archive&gt;
+    void serialize(Archive &amp; ar, const unsigned int version){
+        ar &amp; BOOST_SERIALIZATION_BASE_OBJECT_NVP(Base);
+    }
+public:
+    bool operator==(const Derived &amp;rhs) const {
+        return Base::equals(static_cast&lt;const Base &amp;&gt;(rhs));
+    }
+    Derived(int i = 0) :
+        Base(i)
+    {}
+};
+
+int
+main( int /* argc */, char* /* argv */[] )
+{
+    const char * testfile = boost::archive::tmpnam(NULL);
+
+    // serialize Derived and Base
+    Derived a(1), a1(2);
+    {   
+        test_ostream os(testfile);
+        test_oarchive oa(os);
+        oa &lt;&lt; boost::serialization::make_nvp("a", a);
+    }
+    {
+        test_istream is(testfile, TEST_STREAM_FLAGS);
+        test_iarchive ia(is, TEST_ARCHIVE_FLAGS);
+        ia &gt;&gt; boost::serialization::make_nvp("a", a1);
+    }
+    std::remove(testfile);
+
+    if(a != a1)
+        return 1;
+
+    // serialize Derived and Base
+    Derived *ta = &amp;a;
+    Derived *ta1 = NULL;
+    {   
+        test_ostream os(testfile);
+        test_oarchive oa(os);
+        oa &lt;&lt; boost::serialization::make_nvp("ta", ta);
+    }
+    {
+        test_istream is(testfile, TEST_STREAM_FLAGS);
+        test_iarchive ia(is, TEST_ARCHIVE_FLAGS);
+        ia &gt;&gt; boost::serialization::make_nvp("ta", ta1);
+    }
+    std::remove(testfile);
+    if(*ta != *ta1)
+        return 1;
+
+    return 0;
+}
+</code></pre>
+Difficulties start to occur when the base class is made polymorphic by the designation
+of one or more functions as "virtual".  If a class is polymorphic, the library
+presumes that one will want the ability to serialize a derived class through
+a pointer to the base class.  Included in the macro
+<code>
+BOOST_SERIALIZATION_BASE_OBJECT_NVP
+</code>
+is code which links derived and base class definitions in tables used to serialize
+derived classes through pointers to a polymorphic base class.  This code requires
+the ability to invoke
+<code>
+static_cast&lt;Base &amp;&gt;(Derived &amp;)
+</code>
+which C++ will only permit from within the derived class if the base class is 
+private or protected. The program will fail to compile with an error message 
+indicating invalid cast.
+<p>
+In order for this
+code compiler the following alteration must be made:
+<pre><code>
+    template&lt;class Archive&gt;
+    void serialize(Archive &amp; ar, const unsigned int version){
+        //ar &amp; BOOST_SERIALIZATION_BASE_OBJECT_NVP(Base);
+        ar &amp; boost::serialization::make_nvp(
+            "Base",
+            static_cast&lt;Base &amp;&gt;(*this)
+        );
+    }
+</code></pre>
+With this change the program will now compile.
+<p>
+If we made one of the functions of <code>Base</code> <code>virtual</code>
+in order to use the "export" functionality of the serialization library and permit serialization through
+a pointer the the base class, we'll be disappointed. Without the ability to
+cast to the base class, we can't use the functionality.
+<hr>
+<p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2015.
+Distributed under the Boost Software License, Version 1.0. (See
+accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+</i></p>
+</body>
+</html>
@@ -0,0 +1,149 @@
+Flat profile:
+
+Each sample counts as 0.01 seconds.
+ no time accumulated
+
+  %   cumulative   self              self     total           
+ time   seconds   seconds    calls  Ts/call  Ts/call  name    
+  0.00      0.00     0.00      200     0.00     0.00  void accumulate<unsigned long>(unsigned int&, unsigned long const&)
+  0.00      0.00     0.00      150     0.00     0.00  _pei386_runtime_relocator
+  0.00      0.00     0.00        1     0.00     0.00  std::ostream::operator<<(void const*)
+  0.00      0.00     0.00        1     0.00     0.00  __divdi3
+
+ %         the percentage of the total running time of the
+time       program used by this function.
+
+cumulative a running sum of the number of seconds accounted
+ seconds   for by this function and those listed above it.
+
+ self      the number of seconds accounted for by this
+seconds    function alone.  This is the major sort for this
+           listing.
+
+calls      the number of times this function was invoked, if
+           this function is profiled, else blank.
+ 
+ self      the average number of milliseconds spent in this
+ms/call    function per call, if this function is profiled,
+	   else blank.
+
+ total     the average number of milliseconds spent in this
+ms/call    function and its descendents per call, if this 
+	   function is profiled, else blank.
+
+name       the name of the function.  This is the minor sort
+           for this listing. The index shows the location of
+	   the function in the gprof listing. If the index is
+	   in parenthesis it shows where it would appear in
+	   the gprof listing if it were to be printed.
+
+		     Call graph (explanation follows)
+
+
+granularity: each sample hit covers 4 byte(s) no time propagated
+
+index % time    self  children    called     name
+                0.00    0.00     200/200         setvbuf [1286]
+[4]      0.0    0.00    0.00     200         void accumulate<unsigned long>(unsigned int&, unsigned long const&) [4]
+-----------------------------------------------
+                0.00    0.00     150/150         _cygwin_crt0_common@8 [1230]
+[5]      0.0    0.00    0.00     150         _pei386_runtime_relocator [5]
+-----------------------------------------------
+                0.00    0.00       1/1           _lseek64 [1234]
+[6]      0.0    0.00    0.00       1         std::ostream::operator<<(void const*) [6]
+-----------------------------------------------
+                0.00    0.00       1/1           __tcf_1 [1221]
+[7]      0.0    0.00    0.00       1         __divdi3 [7]
+-----------------------------------------------
+                                   2             main [1263]
+[1263]   0.0    0.00    0.00       0+2       main [1263]
+                                   2             main [1263]
+-----------------------------------------------
+
+ This table describes the call tree of the program, and was sorted by
+ the total amount of time spent in each function and its children.
+
+ Each entry in this table consists of several lines.  The line with the
+ index number at the left hand margin lists the current function.
+ The lines above it list the functions that called this function,
+ and the lines below it list the functions this one called.
+ This line lists:
+     index	A unique number given to each element of the table.
+		Index numbers are sorted numerically.
+		The index number is printed next to every function name so
+		it is easier to look up where the function in the table.
+
+     % time	This is the percentage of the `total' time that was spent
+		in this function and its children.  Note that due to
+		different viewpoints, functions excluded by options, etc,
+		these numbers will NOT add up to 100%.
+
+     self	This is the total amount of time spent in this function.
+
+     children	This is the total amount of time propagated into this
+		function by its children.
+
+     called	This is the number of times the function was called.
+		If the function called itself recursively, the number
+		only includes non-recursive calls, and is followed by
+		a `+' and the number of recursive calls.
+
+     name	The name of the current function.  The index number is
+		printed after it.  If the function is a member of a
+		cycle, the cycle number is printed between the
+		function's name and the index number.
+
+
+ For the function's parents, the fields have the following meanings:
+
+     self	This is the amount of time that was propagated directly
+		from the function into this parent.
+
+     children	This is the amount of time that was propagated from
+		the function's children into this parent.
+
+     called	This is the number of times this parent called the
+		function `/' the total number of times the function
+		was called.  Recursive calls to the function are not
+		included in the number after the `/'.
+
+     name	This is the name of the parent.  The parent's index
+		number is printed after it.  If the parent is a
+		member of a cycle, the cycle number is printed between
+		the name and the index number.
+
+ If the parents of the function cannot be determined, the word
+ `<spontaneous>' is printed in the `name' field, and all the other
+ fields are blank.
+
+ For the function's children, the fields have the following meanings:
+
+     self	This is the amount of time that was propagated directly
+		from the child into the function.
+
+     children	This is the amount of time that was propagated from the
+		child's children to the function.
+
+     called	This is the number of times the function called
+		this child `/' the total number of times the child
+		was called.  Recursive calls by the child are not
+		listed in the number after the `/'.
+
+     name	This is the name of the child.  The child's index
+		number is printed after it.  If the child is a
+		member of a cycle, the cycle number is printed
+		between the name and the index number.
+
+ If there are any cycles (circles) in the call graph, there is an
+ entry for the cycle-as-a-whole.  This entry shows who called the
+ cycle (as parents) and the members of the cycle (as children.)
+ The `+' recursive calls entry shows the number of function calls that
+ were internal to the cycle, and the calls entry for each member shows,
+ for that member, how many times it was called from other members of
+ the cycle.
+
+
+Index by function name
+
+   [4] void accumulate<unsigned long>(unsigned int&, unsigned long const&) [7] __divdi3
+   [6] std::ostream::operator<<(void const*) [5] _pei386_runtime_relocator
@@ -0,0 +1,203 @@
+Flat profile:
+
+Each sample counts as 0.01 seconds.
+  %   cumulative   self              self     total           
+ time   seconds   seconds    calls  Ts/call  Ts/call  name    
+100.00      0.01     0.01                             __gnu_cxx::__atomic_add(int volatile*, int)
+  0.00      0.01     0.00       51     0.00     0.00  boost::archive::iterators::transform_width<char*, 6, 8, char>::fill()
+  0.00      0.01     0.00       36     0.00     0.00  boost::archive::iterators::transform_width<__gnu_cxx::__normal_iterator<char*, std::vector<char, std::allocator<char> > >, 8, 6, char>::fill()
+  0.00      0.01     0.00       30     0.00     0.00  std::vector<char, std::allocator<char> >::_M_insert_aux(__gnu_cxx::__normal_iterator<char*, std::vector<char, std::allocator<char> > >, char const&)
+  0.00      0.01     0.00       11     0.00     0.00  boost::archive::iterators::xml_escape<char const*>::fill(char const*&, char const*&)
+  0.00      0.01     0.00        9     0.00     0.00  void test_transform_width<6, 8>(unsigned int)
+  0.00      0.01     0.00        9     0.00     0.00  boost::archive::iterators::xml_unescape<char const*>::drain()
+  0.00      0.01     0.00        5     0.00     0.00  boost::archive::iterators::xml_unescape<char const*>::drain_residue(char const*)
+  0.00      0.01     0.00        2     0.00     0.00  __static_initialization_and_destruction_0(int, int)
+  0.00      0.01     0.00        1     0.00     0.00  void test_xml_escape<char const>(char const*, char const*, unsigned int)
+  0.00      0.01     0.00        1     0.00     0.00  void test_xml_unescape<char const>(char const*, char const*, unsigned int)
+  0.00      0.01     0.00        1     0.00     0.00  void test_stream_iterators<char>(char const*, unsigned int)
+  0.00      0.01     0.00        1     0.00     0.00  test_main(int, char**)
+  0.00      0.01     0.00        1     0.00     0.00  char* std::string::_S_construct<char*>(char*, char*, std::allocator<char> const&, std::forward_iterator_tag)
+  0.00      0.01     0.00        1     0.00     0.00  std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string<char*>(char*, char*, std::allocator<char> const&)
+
+ %         the percentage of the total running time of the
+time       program used by this function.
+
+cumulative a running sum of the number of seconds accounted
+ seconds   for by this function and those listed above it.
+
+ self      the number of seconds accounted for by this
+seconds    function alone.  This is the major sort for this
+           listing.
+
+calls      the number of times this function was invoked, if
+           this function is profiled, else blank.
+ 
+ self      the average number of milliseconds spent in this
+ms/call    function per call, if this function is profiled,
+	   else blank.
+
+ total     the average number of milliseconds spent in this
+ms/call    function and its descendents per call, if this 
+	   function is profiled, else blank.
+
+name       the name of the function.  This is the minor sort
+           for this listing. The index shows the location of
+	   the function in the gprof listing. If the index is
+	   in parenthesis it shows where it would appear in
+	   the gprof listing if it were to be printed.
+
+		     Call graph (explanation follows)
+
+
+granularity: each sample hit covers 4 byte(s) for 100.00% of 0.01 seconds
+
+index % time    self  children    called     name
+                                                 <spontaneous>
+[1]    100.0    0.01    0.00                 __gnu_cxx::__atomic_add(int volatile*, int) [1]
+-----------------------------------------------
+                0.00    0.00      51/51          void test_transform_width<6, 8>(unsigned int) [9]
+[5]      0.0    0.00    0.00      51         boost::archive::iterators::transform_width<char*, 6, 8, char>::fill() [5]
+-----------------------------------------------
+                0.00    0.00      36/36          void test_transform_width<6, 8>(unsigned int) [9]
+[6]      0.0    0.00    0.00      36         boost::archive::iterators::transform_width<__gnu_cxx::__normal_iterator<char*, std::vector<char, std::allocator<char> > >, 8, 6, char>::fill() [6]
+-----------------------------------------------
+                0.00    0.00      30/30          void test_transform_width<6, 8>(unsigned int) [9]
+[7]      0.0    0.00    0.00      30         std::vector<char, std::allocator<char> >::_M_insert_aux(__gnu_cxx::__normal_iterator<char*, std::vector<char, std::allocator<char> > >, char const&) [7]
+-----------------------------------------------
+                0.00    0.00      11/11          void test_xml_escape<char const>(char const*, char const*, unsigned int) [13]
+[8]      0.0    0.00    0.00      11         boost::archive::iterators::xml_escape<char const*>::fill(char const*&, char const*&) [8]
+-----------------------------------------------
+                0.00    0.00       9/9           test_main(int, char**) [16]
+[9]      0.0    0.00    0.00       9         void test_transform_width<6, 8>(unsigned int) [9]
+                0.00    0.00      51/51          boost::archive::iterators::transform_width<char*, 6, 8, char>::fill() [5]
+                0.00    0.00      36/36          boost::archive::iterators::transform_width<__gnu_cxx::__normal_iterator<char*, std::vector<char, std::allocator<char> > >, 8, 6, char>::fill() [6]
+                0.00    0.00      30/30          std::vector<char, std::allocator<char> >::_M_insert_aux(__gnu_cxx::__normal_iterator<char*, std::vector<char, std::allocator<char> > >, char const&) [7]
+-----------------------------------------------
+                0.00    0.00       9/9           void test_xml_unescape<char const>(char const*, char const*, unsigned int) [14]
+[10]     0.0    0.00    0.00       9         boost::archive::iterators::xml_unescape<char const*>::drain() [10]
+                0.00    0.00       5/5           boost::archive::iterators::xml_unescape<char const*>::drain_residue(char const*) [11]
+-----------------------------------------------
+                0.00    0.00       5/5           boost::archive::iterators::xml_unescape<char const*>::drain() [10]
+[11]     0.0    0.00    0.00       5         boost::archive::iterators::xml_unescape<char const*>::drain_residue(char const*) [11]
+-----------------------------------------------
+                0.00    0.00       1/2           global constructors keyed to main [38]
+                0.00    0.00       1/2           global destructors keyed to main [35]
+[12]     0.0    0.00    0.00       2         __static_initialization_and_destruction_0(int, int) [12]
+-----------------------------------------------
+                0.00    0.00       1/1           test_main(int, char**) [16]
+[13]     0.0    0.00    0.00       1         void test_xml_escape<char const>(char const*, char const*, unsigned int) [13]
+                0.00    0.00      11/11          boost::archive::iterators::xml_escape<char const*>::fill(char const*&, char const*&) [8]
+-----------------------------------------------
+                0.00    0.00       1/1           test_main(int, char**) [16]
+[14]     0.0    0.00    0.00       1         void test_xml_unescape<char const>(char const*, char const*, unsigned int) [14]
+                0.00    0.00       9/9           boost::archive::iterators::xml_unescape<char const*>::drain() [10]
+-----------------------------------------------
+                0.00    0.00       1/1           test_main(int, char**) [16]
+[15]     0.0    0.00    0.00       1         void test_stream_iterators<char>(char const*, unsigned int) [15]
+                0.00    0.00       1/1           std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string<char*>(char*, char*, std::allocator<char> const&) [18]
+-----------------------------------------------
+                0.00    0.00       1/1           main [1211]
+[16]     0.0    0.00    0.00       1         test_main(int, char**) [16]
+                0.00    0.00       9/9           void test_transform_width<6, 8>(unsigned int) [9]
+                0.00    0.00       1/1           void test_xml_escape<char const>(char const*, char const*, unsigned int) [13]
+                0.00    0.00       1/1           void test_xml_unescape<char const>(char const*, char const*, unsigned int) [14]
+                0.00    0.00       1/1           void test_stream_iterators<char>(char const*, unsigned int) [15]
+-----------------------------------------------
+                0.00    0.00       1/1           std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string<char*>(char*, char*, std::allocator<char> const&) [18]
+[17]     0.0    0.00    0.00       1         char* std::string::_S_construct<char*>(char*, char*, std::allocator<char> const&, std::forward_iterator_tag) [17]
+-----------------------------------------------
+                0.00    0.00       1/1           void test_stream_iterators<char>(char const*, unsigned int) [15]
+[18]     0.0    0.00    0.00       1         std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string<char*>(char*, char*, std::allocator<char> const&) [18]
+                0.00    0.00       1/1           char* std::string::_S_construct<char*>(char*, char*, std::allocator<char> const&, std::forward_iterator_tag) [17]
+-----------------------------------------------
+
+ This table describes the call tree of the program, and was sorted by
+ the total amount of time spent in each function and its children.
+
+ Each entry in this table consists of several lines.  The line with the
+ index number at the left hand margin lists the current function.
+ The lines above it list the functions that called this function,
+ and the lines below it list the functions this one called.
+ This line lists:
+     index	A unique number given to each element of the table.
+		Index numbers are sorted numerically.
+		The index number is printed next to every function name so
+		it is easier to look up where the function in the table.
+
+     % time	This is the percentage of the `total' time that was spent
+		in this function and its children.  Note that due to
+		different viewpoints, functions excluded by options, etc,
+		these numbers will NOT add up to 100%.
+
+     self	This is the total amount of time spent in this function.
+
+     children	This is the total amount of time propagated into this
+		function by its children.
+
+     called	This is the number of times the function was called.
+		If the function called itself recursively, the number
+		only includes non-recursive calls, and is followed by
+		a `+' and the number of recursive calls.
+
+     name	The name of the current function.  The index number is
+		printed after it.  If the function is a member of a
+		cycle, the cycle number is printed between the
+		function's name and the index number.
+
+
+ For the function's parents, the fields have the following meanings:
+
+     self	This is the amount of time that was propagated directly
+		from the function into this parent.
+
+     children	This is the amount of time that was propagated from
+		the function's children into this parent.
+
+     called	This is the number of times this parent called the
+		function `/' the total number of times the function
+		was called.  Recursive calls to the function are not
+		included in the number after the `/'.
+
+     name	This is the name of the parent.  The parent's index
+		number is printed after it.  If the parent is a
+		member of a cycle, the cycle number is printed between
+		the name and the index number.
+
+ If the parents of the function cannot be determined, the word
+ `<spontaneous>' is printed in the `name' field, and all the other
+ fields are blank.
+
+ For the function's children, the fields have the following meanings:
+
+     self	This is the amount of time that was propagated directly
+		from the child into the function.
+
+     children	This is the amount of time that was propagated from the
+		child's children to the function.
+
+     called	This is the number of times the function called
+		this child `/' the total number of times the child
+		was called.  Recursive calls by the child are not
+		listed in the number after the `/'.
+
+     name	This is the name of the child.  The child's index
+		number is printed after it.  If the child is a
+		member of a cycle, the cycle number is printed
+		between the name and the index number.
+
+ If there are any cycles (circles) in the call graph, there is an
+ entry for the cycle-as-a-whole.  This entry shows who called the
+ cycle (as parents) and the members of the cycle (as children.)
+ The `+' recursive calls entry shows the number of function calls that
+ were internal to the cycle, and the calls entry for each member shows,
+ for that member, how many times it was called from other members of
+ the cycle.
+
+
+Index by function name
+
+  [13] void test_xml_escape<char const>(char const*, char const*, unsigned int) [16] test_main(int, char**) [5] boost::archive::iterators::transform_width<char*, 6, 8, char>::fill()
+  [14] void test_xml_unescape<char const>(char const*, char const*, unsigned int) [8] boost::archive::iterators::xml_escape<char const*>::fill(char const*&, char const*&) [1] __gnu_cxx::__atomic_add(int volatile*, int)
+   [9] void test_transform_width<6, 8>(unsigned int) [11] boost::archive::iterators::xml_unescape<char const*>::drain_residue(char const*) [17] char* std::string::_S_construct<char*>(char*, char*, std::allocator<char> const&, std::forward_iterator_tag)
+  [15] void test_stream_iterators<char>(char const*, unsigned int) [10] boost::archive::iterators::xml_unescape<char const*>::drain() [18] std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string<char*>(char*, char*, std::allocator<char> const&)
+  [12] __static_initialization_and_destruction_0(int, int) (performance_iterators.cpp) [6] boost::archive::iterators::transform_width<__gnu_cxx::__normal_iterator<char*, std::vector<char, std::allocator<char> > >, 8, 6, char>::fill() [7] std::vector<char, std::allocator<char> >::_M_insert_aux(__gnu_cxx::__normal_iterator<char*, std::vector<char, std::allocator<char> > >, char const&)
@@ -0,0 +1,153 @@
+Flat profile:
+
+Each sample counts as 0.01 seconds.
+ no time accumulated
+
+  %   cumulative   self              self     total           
+ time   seconds   seconds    calls  Ts/call  Ts/call  name    
+  0.00      0.00     0.00      200     0.00     0.00  boost::archive::iterators::transform_width<char*, 6, 8, char>::fill()
+  0.00      0.00     0.00      150     0.00     0.00  boost::archive::iterators::transform_width<boost::archive::iterators::binary_from_base64<boost::archive::iterators::remove_whitespace<std::_List_iterator<char> >, char>, 8, 6, char>::fill()
+  0.00      0.00     0.00        2     0.00     0.00  __static_initialization_and_destruction_0(int, int)
+  0.00      0.00     0.00        1     0.00     0.00  void test_base64<char>()
+  0.00      0.00     0.00        1     0.00     0.00  std::_List_base<char, std::allocator<char> >::_M_clear()
+
+ %         the percentage of the total running time of the
+time       program used by this function.
+
+cumulative a running sum of the number of seconds accounted
+ seconds   for by this function and those listed above it.
+
+ self      the number of seconds accounted for by this
+seconds    function alone.  This is the major sort for this
+           listing.
+
+calls      the number of times this function was invoked, if
+           this function is profiled, else blank.
+ 
+ self      the average number of milliseconds spent in this
+ms/call    function per call, if this function is profiled,
+	   else blank.
+
+ total     the average number of milliseconds spent in this
+ms/call    function and its descendents per call, if this 
+	   function is profiled, else blank.
+
+name       the name of the function.  This is the minor sort
+           for this listing. The index shows the location of
+	   the function in the gprof listing. If the index is
+	   in parenthesis it shows where it would appear in
+	   the gprof listing if it were to be printed.
+
+		     Call graph (explanation follows)
+
+
+granularity: each sample hit covers 4 byte(s) no time propagated
+
+index % time    self  children    called     name
+                0.00    0.00     200/200         void test_base64<char>() [7]
+[4]      0.0    0.00    0.00     200         boost::archive::iterators::transform_width<char*, 6, 8, char>::fill() [4]
+-----------------------------------------------
+                0.00    0.00     150/150         void test_base64<char>() [7]
+[5]      0.0    0.00    0.00     150         boost::archive::iterators::transform_width<boost::archive::iterators::binary_from_base64<boost::archive::iterators::remove_whitespace<std::_List_iterator<char> >, char>, 8, 6, char>::fill() [5]
+-----------------------------------------------
+                0.00    0.00       1/2           global constructors keyed to main [27]
+                0.00    0.00       1/2           global destructors keyed to main [24]
+[6]      0.0    0.00    0.00       2         __static_initialization_and_destruction_0(int, int) [6]
+-----------------------------------------------
+                0.00    0.00       1/1           main [1156]
+[7]      0.0    0.00    0.00       1         void test_base64<char>() [7]
+                0.00    0.00     200/200         boost::archive::iterators::transform_width<char*, 6, 8, char>::fill() [4]
+                0.00    0.00     150/150         boost::archive::iterators::transform_width<boost::archive::iterators::binary_from_base64<boost::archive::iterators::remove_whitespace<std::_List_iterator<char> >, char>, 8, 6, char>::fill() [5]
+                0.00    0.00       1/1           std::_List_base<char, std::allocator<char> >::_M_clear() [8]
+-----------------------------------------------
+                0.00    0.00       1/1           void test_base64<char>() [7]
+[8]      0.0    0.00    0.00       1         std::_List_base<char, std::allocator<char> >::_M_clear() [8]
+-----------------------------------------------
+
+ This table describes the call tree of the program, and was sorted by
+ the total amount of time spent in each function and its children.
+
+ Each entry in this table consists of several lines.  The line with the
+ index number at the left hand margin lists the current function.
+ The lines above it list the functions that called this function,
+ and the lines below it list the functions this one called.
+ This line lists:
+     index	A unique number given to each element of the table.
+		Index numbers are sorted numerically.
+		The index number is printed next to every function name so
+		it is easier to look up where the function in the table.
+
+     % time	This is the percentage of the `total' time that was spent
+		in this function and its children.  Note that due to
+		different viewpoints, functions excluded by options, etc,
+		these numbers will NOT add up to 100%.
+
+     self	This is the total amount of time spent in this function.
+
+     children	This is the total amount of time propagated into this
+		function by its children.
+
+     called	This is the number of times the function was called.
+		If the function called itself recursively, the number
+		only includes non-recursive calls, and is followed by
+		a `+' and the number of recursive calls.
+
+     name	The name of the current function.  The index number is
+		printed after it.  If the function is a member of a
+		cycle, the cycle number is printed between the
+		function's name and the index number.
+
+
+ For the function's parents, the fields have the following meanings:
+
+     self	This is the amount of time that was propagated directly
+		from the function into this parent.
+
+     children	This is the amount of time that was propagated from
+		the function's children into this parent.
+
+     called	This is the number of times this parent called the
+		function `/' the total number of times the function
+		was called.  Recursive calls to the function are not
+		included in the number after the `/'.
+
+     name	This is the name of the parent.  The parent's index
+		number is printed after it.  If the parent is a
+		member of a cycle, the cycle number is printed between
+		the name and the index number.
+
+ If the parents of the function cannot be determined, the word
+ `<spontaneous>' is printed in the `name' field, and all the other
+ fields are blank.
+
+ For the function's children, the fields have the following meanings:
+
+     self	This is the amount of time that was propagated directly
+		from the child into the function.
+
+     children	This is the amount of time that was propagated from the
+		child's children to the function.
+
+     called	This is the number of times the function called
+		this child `/' the total number of times the child
+		was called.  Recursive calls by the child are not
+		listed in the number after the `/'.
+
+     name	This is the name of the child.  The child's index
+		number is printed after it.  If the child is a
+		member of a cycle, the cycle number is printed
+		between the name and the index number.
+
+ If there are any cycles (circles) in the call graph, there is an
+ entry for the cycle-as-a-whole.  This entry shows who called the
+ cycle (as parents) and the members of the cycle (as children.)
+ The `+' recursive calls entry shows the number of function calls that
+ were internal to the cycle, and the calls entry for each member shows,
+ for that member, how many times it was called from other members of
+ the cycle.
+
+
+Index by function name
+
+   [7] void test_base64<char>() [5] boost::archive::iterators::transform_width<boost::archive::iterators::binary_from_base64<boost::archive::iterators::remove_whitespace<std::_List_iterator<char> >, char>, 8, 6, char>::fill() [8] std::_List_base<char, std::allocator<char> >::_M_clear()
+   [6] __static_initialization_and_destruction_0(int, int) (performance_iterators_base64.cpp) [4] boost::archive::iterators::transform_width<char*, 6, 8, char>::fill()
@@ -10,7 +10,7 @@ http://www.boost.org/LICENSE_1_0.txt)
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <link rel="stylesheet" type="text/css" href="../../../boost.css">
 <link rel="stylesheet" type="text/css" href="style.css">
-<title>Seriealization - Rationale</title>
+<title>Serialization - Rationale</title>
 </head>
 <body link="#0000ff" vlink="#800080">
 <table border="0" cellpadding="7" cellspacing="0" width="100%" summary=
@@ -31,7 +31,6 @@ http://www.boost.org/LICENSE_1_0.txt)
  <dt><a href="#archives">Archives are not streams</a></dt>
  <dt><a href="#strings">Strings are treated specially in text archives</a></dt>
  <dt><a href="#typeid"><code style="white-space: normal">typeid</code> information is not included in archives</a></dt>
-  <dt><a href="#trap">Compile time trap when saving a non-const value</a></dt>
  <!--
  <dt><a href="#footnotes">Footnotes</a></dt>
  -->
@@ -50,7 +49,7 @@ streams even though they have similar syntax rules.
 <ul>
    <li>Archive classes are not kinds of streams though they
    are implemented in terms of streams. This
-    distinction is addressed in <a href="bibliography.html#5">[5]</a> item number item 41 .
+    distinction is addressed in <a href="bibliography.html#5">[5]</a> item number 41.
    <li>We don't want users to insert/extract&nbsp;data
    directly into/from &nbsp;the stream .&nbsp; This could
    create a corrupted archive. Were archives
@@ -110,226 +109,6 @@ and/or <code style="white-space: normal">export</code> facilities described in t
 In effect, <code style="white-space: normal">export</code> generates a portable equivalent to
 <code style="white-space: normal">typeid</code> information.

-<h2><a name="trap"></a>Compile time trap when saving a non-const value</h2>
-</p>
-The following code will fail to compile.  The failure will occur on a line with a
-<code style="white-space: normal">BOOST_STATIC_ASSERT</code>.  
-Here, we refer to this as a compile time trap.
-<code style="white-space: normal"><pre>
-T t;
-ar &lt;&lt; t;
-</pre></code>
-
-unless the tracking_level serialization trait is set to "track_never". The following
-will compile without problem:
-
-<code style="white-space: normal"><pre>
-const T t
-ar &lt;&lt; t;
-</pre></code>
-
-Likewise, the following code will trap at compile time:
-
-<code style="white-space: normal"><pre>
-T * t;
-ar >> t;
-</pre></code>
-
-if the tracking_level serialization trait is set to "track_never".
-<p>
-
-This behavior has been contraversial and may be revised in the future. The criticism 
-is that it will flag code that is in fact correct and force users to insert
-<code style="white-space: normal">const_cast</code>. My view is that:
-<ul>
-  <li>The trap is useful in detecting a certain class of programming errors.
-  <li>Such errors would otherwise be difficult to detect.
-  <li>The incovenience caused by including this trap is very small in relation
-  to its benefits.
-</ul>
-
-The following case illustrates my position.  It was originally used as an example in the
-mailing list by Peter Dimov.
-
-<code style="white-space: normal"><pre>
-class construct_from 
-{ 
-    ... 
-}; 
-
-void main(){ 
-    ... 
-    Y y; 
-    construct_from x(y); 
-    ar &lt;&lt; x; 
-} 
-</pre></code>
-
-Suppose that there is no trap as described above.
-<ol>
-  <li>this example compiles and executes fine. No tracking is done because 
-  construct_from has never been serialized through a pointer. Now some time 
-  later, the next programmer(2) comes along and makes an enhancement. He 
-  wants the archive to be sort of a log. 
-
-<code style="white-space: normal"><pre>
-void main(){ 
-    ... 
-    Y y; 
-    construct_from x(y); 
-    ar &lt;&lt; x; 
-    ... 
-    x.f(); // change x in some way 
-   ... 
-    ar &lt;&lt; x 
-} 
-</pre></code>
-  <p>
-  Again no problem. He gets two different of copies in the archive, each one is different. 
-  That is he gets exactly what he expects and is naturally delighted. 
-  <p>
-  <li>Now sometime later, a third programmer(3) sees construct_from and says - 
-  oh cool, just what I need. He writes a function in a totally disjoint 
-  module. (The project is so big, he doesn't even realize the existence of 
-  the original usage) and writes something like: 
-
-<code style="white-space: normal"><pre>
-class K { 
-    shared_ptr &lt;construct_from&gt; z; 
-    template &lt;class Archive&gt; 
-    void serialize(Archive & ar, const unsigned version){ 
-        ar &lt;&lt; z; 
-    } 
-}; 
-</pre></code>
-
-  <p>
-  He builds and runs the program and tests his new functionality. It works 
-  great and he's delighted. 
-  <p>
-  <li>Things continue smoothly as before.  A month goes by and it's 
-  discovered that when loading the archives made in the last month (reading the 
-  log). Things don't work. The second log entry is always the same as the 
-  first. After a series of very long and increasingly acrimonius email exchanges, 
-its discovered 
-  that programmer (3) accidently broke programmer(2)'s code .This is because by 
-  serializing via a pointer, the "log" object now being tracked.  This is because
-  the default tracking behavior is "track_selectively".  This means that class
-  instances are tracked only if they are serialized through pointers anywhere in
-  the program. Now multiple saves from the same address result in only the first one 
-  being written to the archive. Subsequent saves only add the address - even though the 
-  data might have been changed.  When it comes time to load the data, all instances of the log record show the same data.
-  In this way, the behavior of a functioning piece of code is changed due the side
-  effect of a change in an otherwise disjoint module.
-  Worse yet, the data has been lost and cannot not be now recovered from the archives.
-  People are really upset and disappointed with boost (at least the serialization system).
-  <p>
-  <li>
-  After a lot of investigation, it's discovered what the source of the problem
-  and class construct_from is marked "track_never" by including:
-<code style="white-space: normal"><pre>
-BOOST_SERIALIZATION_TRACKING(construct_from, track_never) 
-</pre></code>
-  <li>Now everything works again. Or - so it seems.
-  <p>
-  <li><code style="white-space: normal">shared_ptr&lt;construct_from&gt;</code>
-is not going to have a single raw pointer shared amongst the instances. Each loaded 
-<code style="white-space: normal">shared_ptr&lt;construct_from&gt;</code> is going to 
-have its own distinct raw pointer. This will break 
-<code style="white-space: normal">shared_ptr</code> and cause a memory leak.  Again,
-The cause of this problem is very far removed from the point of discovery.  It could 
-well be that the problem is not even discovered until after the archives are loaded.
-Now we not only have difficult to find and fix program bug, but we have a bunch of
-invalid archives and lost data.
-</ol>
-
-Now consider what happens when the trap is enabled:. 
-
-<ol>
-  <p>
-  <li>Right away, the program traps at 
-<code style="white-space: normal"><pre>
-ar &lt;&lt; x; 
-</pre></code>
-  <p>
-  <li>The programmer curses (another %^&*&* hoop to jump through). If he's in a 
-  hurry (and who isn't) and would prefer not to <code style="white-space: normal">const_cast</code>
-  - because it looks bad.  So he'll just make the following change an move on. 
-<code style="white-space: normal"><pre>
-Y y; 
-const construct_from x(y); 
-ar &lt;&lt; x; 
-</pre></code>
-  <p>
-  Things work fine and he moves on. 
-  <p>
-  <li>Now programer (2) wants to make his change - and again another 
-  annoying const issue; 
-<code style="white-space: normal"><pre>
-Y y; 
-const construct_from x(y); 
-... 
-x.f(); // change x in some way ; compile error f() is not const 
-... 
-ar &lt;&lt; x 
-</pre></code>
-  <p>
-  He's mildly annoyed now he tries the following: 
-  <ul>
-    <li>He considers making f() a const - but presumable that shifts the const 
-    error to somewhere else. And his doesn't want to fiddle with "his" code to 
-    work around a quirk in the serializaition system 
-    <p>
-    <li>He removes the <code style="white-space: normal">const</code>
-    from <code style="white-space: normal">const construct_from</code> above - damn now he 
-    gets the trap. If he looks at the comment code where the 
-    <code style="white-space: normal">BOOST_STATIC_ASSERT</code>
-    occurs, he'll do one of two things 
-    <ol>
-      <p>
-      <li>This is just crazy. Its making my life needlessly difficult and flagging 
-      code that is just fine. So I'll fix this with a <code style="white-space: normal">const_cast</code>
-      and fire off a complaint to the list and mabe they will fix it. 
-      In this case, the story branches off to the previous scenario.
-      <p>
-      <li>Oh, this trap is suggesting that the default serialization isn't really 
-      what I want. Of course in this particular program it doesn't matter. But 
-      then the code in the trap can't really evaluate code in other modules (which 
-      might not even be written yet). OK, I'll add the following to my 
-      construct_from.hpp to solve the problem. 
-<code style="white-space: normal"><pre>
-BOOST_SERIALIZATION_TRACKING(construct_from, track_never) 
-</pre></code>
-    </ol>
-  </ul>
-  <p>
-  <li>Now programmer (3) comes along and make his change. The behavior of the 
-  original (and distant module) remains unchanged because the 
-  <code style="white-space: normal">construct_from</code> trait has been set to 
-  "track_never" so he should always get copies and the log should be what we expect.
-  <p>
-  <li>But now he gets another trap - trying to save an object of a 
-  class marked "track_never" through a pointer. So he goes back to 
-  construct_from.hpp and comments out the 
-  <code style="white-space: normal">BOOST_SERIALIZATION_TRACKING</code> that 
-  was inserted. Now the second trap is avoided, But damn - the first trap is 
-  popping up again. Eventually, after some code restructuring, the differing
-  requirements of serializating <code style="white-space: normal">construct_from</code>
-  are reconciled.
-</ol>
-Note that in this second scenario
-<ul>
-  <li>all errors are trapped at compile time.
-  <li>no invalid archives are created.
-  <li>no data is lost.
-  <li>no runtime errors occur.
-</ul>
-
-It's true that these traps may sometimes flag code that is currently correct and
-that this may be annoying to some programmers.  However, this example illustrates
-my view that these traps are useful and that any such annoyance is small price to
-pay to avoid particularly vexing programming errors.
-
 <!--
 <h2><a name="footnotes"></a>Footnotes</h2>
 <dl>
@@ -9,38 +9,144 @@ http://www.boost.org/LICENSE_1_0.txt)
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <link rel="stylesheet" type="text/css" href="../../../boost.css">
-<link rel="stylesheet" type="text/css" href="style.css">
-<title>Serialization - Release Notes</title>
+    <link rel="stylesheet" type="text/css" href="style.css">
+        <title>Serialization - Release Notes</title>
 </head>
 <body link="#0000ff" vlink="#800080">
 <table border="0" cellpadding="7" cellspacing="0" width="100%" summary="header">
-  <tr> 
-    <td valign="top" width="300"> 
-      <h3><a href="../../../index.htm"><img height="86" width="277" alt="C++ Boost" src="../../../boost.png" border="0"></a></h3>
-    </td>
-    <td valign="top"> 
-      <h1 align="center">Serialization</h1>
-      <h2 align="center">Release Notes</h2>
-    </td>
-  </tr>
+    <tr>
+        <td valign="top" width="300">
+            <h3>
+                <a href="../../../index.htm"><img height="86" width="277" alt="C++ Boost" src="../../../boost.png" border="0"></a></h3>
+        </td>
+        <td valign="top">
+            <h1 align="center">
+                Serialization</h1>
+            <h2 align="center">
+                Release Notes</h2>
+        </td>
+    </tr>
 </table>
 <hr>
 <dl class="index">
-  <dt><a href="#requirements">Requirements</a></dt>
-  <dt><a href="#differences_1_32">Differences from version 1.32</a></dt>
-  <dt><a href="#differences_1_33">Differences from version 1.33</a></dt>
-  <dt><a href="#differences_1_34">Differences from version 1.34</a></dt>
-  <dt><a href="#todo">Pending Issues</a></dt>
+    <dt><a href="#differences_1_59">Differences from version 1.58</a></dt>
+    <dt><a href="#differences_1_58">Differences from version 1.48</a></dt>
+    <dt><a href="#differences_1_45">Differences from version 1.45</a></dt> 
+    <dt><a href="#differences_1_43">Differences from version 1.43</a></dt> 
+    <dt><a href="#differences_1_42">Differences from version 1.42</a></dt> 
+    <dt><a href="#differences_1_41">Differences from version 1.41</a></dt> 
+    <dt><a href="#differences_1_40">Differences from version 1.40</a></dt> 
+    <dt><a href="#differences_1_39">Differences from version 1.39</a></dt> 
+    <dt><a href="#differences_1_37">Differences from version 1.37</a></dt> 
+    <dt><a href="#differences_1_35">Differences from version 1.35</a></dt>
+    <dt><a href="#differences_1_34">Differences from version 1.34</a></dt> 
+    <dt><a href="#differences_1_33">Differences from version 1.33</a></dt> 
+    <dt><a href="#differences_1_32">Differences from version 1.32</a></dt>
+    <dt><a href="#todo">Pending Issues</a></dt>
 </dl>
-This is the Boost 1.33 Serialization Library.
-There are currently no known bugs. However, due to compiler/library quirks and or 
-bugs, some tests fail with some combinations of compilers and libraries.
-<h2><a name="requirements"></a>Requirements</h2>
-This library requires Boost version 1.33 or later.
+As of this writing, there are no known bugs. However, due to compiler/library 
+quirks and or bugs, some tests fail with some combinations of compilers and 
+libraries.
+<h2><a name="differences_1_59"></a>Differences from Boost 1.58</h2>
+<ul>
+<li>Eliminated support for Borland compilers and Microsoft compilers prior to version
+7.1.
+<li>Eliminated support for compilers which do not support Partial Function Template
+Ordering (pfto).
+<li>Added support for "visibility hidden" for GCC compilers.  Shared libraries
+will only expose symbols actually needed rather than all sympols in the library.  This
+should result in smaller shared libraries which are faster to load.
+</ul>
+<h2><a name="differences_1_58"></a>Differences from Boost 1.48</h2>
+<ul>
+<li>Added support for C++11 types such as std::shared_ptr, std::array, and others.
+<li>Implemented the concept of a "Helper" which can be used to implement serialization of types which are otherwise not serializable."
+<li>Made library compatible with C++11,  Compatibility with C++03 has been maintained.
+</ul>
+<h2><a name="differences_1_45"></a>Differences from Boost 1.45</h2>
+Since the release of version 1.42, it has been discovered that binary
+archives created by versions 1.42-1.44 cannot always be read by the
+recent binary archive code.  Work has proceeded in detecting the source
+of these anomolies and those which have been reported with test cases
+have been fixed.  As of this writing, it is not known whether all
+binary archives created with these versions can be loaded.
+<h2><a name="differences_1_43"></a>Differences from Boost 1.43</h2>
+<ul>
+    <li>fixed bug in the serialization of virtual base classes.  Due
+    to heroic efforts by Takatoshi Kondo.
+    <li>Native binary archives created under versions 1.42 and 1.43
+    suffer from a serious problem.  It's likely they won't be readable
+    by this latest version. This due to the fact that 1.42 made some
+    changes in the binary format of some types.  Normally this could
+    be addressed by detecting the library version number written into
+    the archive header.  Unfortunately, this library version number
+    was not incremented at 1.42 as it should have been.  So now we have
+    two different binary archive versions with the same library version
+    number.
+    <p>
+    This has been addressed by including a small utility in the example
+    directory named fix_six.cpp.  This should be run with the command line<br>
+    <code><pre>
+    fix_six &lt;file name&gt;
+    </pre></code>
+    This will assign 7 to the library version number of the archive. This
+    fix will need to ba applied to native binary archives created with
+    boost versions 1.42 and 1.43.
+</ul>
+<h2><a name="differences_1_42"></a>Differences from Boost 1.42</h2>
+<ul>
+    <li>fixed failure of shared_ptr serialization when serializing pointers
+created from enable_shared_from_this.
+    <li>added example for a simple archive which can be used as a debug log.
+This example illustrates the implemenation of the archive concept to aid
+understanding required to create one's own archive classes. The resulting
+archive is useful for debugging in that it only 160 lines of code and is
+header only - that is, it doesn't required linking to the serialization library.
+    <li>replaced example used to show how to derive from an existing archive.
+This example creates an XML archive class which doesn't include serialization
+traits such as class_id, class_version, etc.  It might be useful for exporting
+one's class information to osme XML processor and/or debugging programs.
+    <li>compile time warnings have been implemented to detect practices which
+    though correct, will result in operation or side effects different than
+    a user probably intends.
+    <li>Some memory leaks associated with void_cast have been fixed.
+</ul>
+<h2><a name="differences_1_41"></a>Differences from Boost 1.41</h2>
+<ul>
+    <li>adjustments have been made to minimize compile time warnings.
+    <li>compile time warnings have been implemented to detect practices which
+    though correct, will result in operation or side effects different than
+    a user probably intends.
+    <li>Some memory leaks associated with void_cast have been fixed.
+</ul>
+<h2><a name="differences_1_40"></a>Differences from Boost 1.40</h2>
+This library has been tested against Boost version 1.39 and 1.40.
+<p>
+    Changes have been made to archive classes included with the library. Users who 
+    have used these a guide to making their own archive classes will find that 
+    these will likely no longer compile. This can be remedied by making the 
+    following changes in the code which instantiates these archive classes.
+</p>
+Old Code:<br>
+<code><pre>
+...
+#include &lt;boost/archive/impl/archive_pointer_iserializer.ipp&gt;
+...
+template class detail::archive_pointer_iserializer&lt;naked_text_iarchive&gt; ;
+...
+template class detail::archive_pointer_iserializer&lt;text_iarchive&gt; ;
+</pre></code>should be replaced with this new code: <code><pre>
+#include &lt;boost/archive/impl/archive_serializer_map.ipp&gt;
+...
+template class detail::archive_serializer_map&lt;naked_text_iarchive&gt; ;
+...
+template class detail::archive_serializer_map&lt;text_iarchive&gt; ;
+</pre></code>
+<!--
 <p>
 The serialization library uses the boost spirit package to load XML archives.
 We have found that all tests pass using spirit 1.6x. Spirit 1.8 and higher does not work with
-older compilers - specificallly MSVC 6, Borland and GCC < 3.0.
+older compilers - specifically MSVC 6, Borland and GCC < 3.0.
 If you are using one of these compilers, you may download a version
 of spirit 1.6 <a href="http://spirit.sourceforge.net/index.php?doc=download/index.html">here</a>.
 To use this downloaded version rather than the one included with boost,
@@ -52,74 +158,138 @@ set SPIRIT_ROOT=c:/spirit16
 If you're not using bjam and the Jamfile to build the library, be sure that
 the directory which contains the version of spirit you plan to use is placed
 at the front of the list of include paths.
-
-<h2><a name="differences_1_32"></a>Differences from Boost 1.32</h2>
+-->
+<h2><a name="differences_1_39"></a>Differences from Boost 1.39</h2>
 <ul>
-    <li>Dynamic Linking Library (DLLs and shared libraries) for platforms which support them. See
-    <a href="../../../more/getting_started.html#auto-link">Automatic Linking on Windows</a>.
-    <li>Implementation of auto-link for compilers which can support this.
-    <li>Better support for <em>Argument Dependent Lookup</em> and two-phase lookup.
-    This results in simpler rules regarding the placing of serialization specializations
-    namespaces.
-    <li>Enhanced documentation to help explain usage of the above.
-    <li>Adjustments to improve support for less conformant compilers.
-    <li>Improved <code>const</code> correctness for save/load operators.  Note that this may
-    produce compile time errors in code which compiled without problem in earlier boost releases.
-    In most cases the fix is trivial.  In other cases, code should be scrutinized to be
-    sure that it doesn't use the serializaton system in a way which may introduce subtle bugs in
-    to the program.  A fuller explanation of this issue can be found
-    <a target="detail" href="traits.html#tracking">here</a>.
-    <li>A new implementation of serialization for <code style="white-space: normal">shared_ptr&lt;T&gt;</code>.  This
-    is compatible with public interface of <code style="white-space: normal">shared_ptr&lt;T&gt;</code>
-    so it should be more robust and not have to change in the future.  The implementation optionally
-    includes code to load <code style="white-space: normal">shared_ptr&lt;T&gt;</code> stored in 
-    archives created with boost 1.32.  This code is stored in the header:
-    <code style="white-space: normal">boost/serialization/shared_ptr_132.hpp</code>. If your application
-    needs to load archives created with boost 1.32 libraries, include the above header
-    before each inclusion of <code style="white-space: normal">boost/serialization/shared_ptr.hpp</code>.
-    <li>More compilers tested and supported.
-    <li>Miscelleanous bug fixes.
+    <li>
+        It is now possible to serialize an object through a pointer to a class which 
+        implements its own <code style="white-space: normal">new/delete</code>
+    operators. This functionaly is not available on some compilers.
+    <li>
+    serialization of polymorphic objects has been sped up considerably.
+</ul>
+As of this writing, all bug reports filed as TRAK tickets have been addressed. 
+There are some TRAK tickets pending which would best be described as feature 
+requests. See <a href="#todo">Pending Issues</a>.
+<h2><a name="differences_1_37"></a>Differences from Boost 1.37</h2>
+There are no new features in this version. As of this writing, all bug reports 
+filed as TRAK tickets have been addressed. There are some TRAK tickets pending 
+which would best be described as feature requests. See <a href="#todo">Pending 
+    Issues</a>.
+<h2><a name="differences_1_36"></a>Differences from Boost 1.36</h2>
+There are no new features in this version. As of this writing, all bug reports 
+filed as TRAK tickets have been addressed.
+<h2><a name="differences_1_35"></a>Differences from Boost 1.35</h2>
+<ul>
+    <li>
+    The library is now thread safe. That is, multiple archives can be open in 
+    different threads. This has been implmented with a lock-free algorithm to avoid 
+    any performance bottlenecks.
+    <li>
+    Serialization of types defined in shared libraries is now supported. shared 
+    libraries (DLLS) can be loaded/unloaded dynamically at runtime. This includes 
+    the serialization of instances of abstract base classes so that a program can 
+    be written so as to be compatible with as yet undefined and un-implemented 
+    code.
+    <li>
+    The extended type info system has been enhanced to in order to implement the 
+    above. It is now a general purpose system for creating and casting of types 
+    about which is only known a string ID and an abstract base class.
+    <li>
+    All bug reports filed as TRAK tickets have been addressed.
+    <li>
+    As of this writing, the library will fail build on older compilers such as MSVC 
+    before version 7.1 and older versions of Borland compilers. This might or might 
+    not change in the future.
+</ul>
+<h2><a name="differences_1_34"></a>Differences from Boost 1.34</h2>
+<ul>
+    <li>
+    Enhanced support for fast serialization for native binary archives. By Mattias 
+    Troyer.
+    <li>
+    Improved implementation of "export" functionality. Removes header ordering 
+    requirement and eliminates the maintenance of a pre-determined list of "known 
+    archives" By David Abrahams.
+    <li>
+    Improved support for STLPort.
 </ul>
 <h2><a name="differences_1_33"></a>Differences from Boost 1.33</h2>
 <ul>
-    <li>Native Binary archives use the <code style="white-space: normal">std::streambuf</code> interface.
-    This should result in noticibly faster execution in many cases.
+    <li>
+        Native Binary archives use the <code style="white-space: normal">std::streambuf</code>
+    interface. This should result in noticeably faster execution in many cases.
 </ul>
-
-<h2><a name="differences_1_34"></a>Differences from Boost 1.34</h2>
+<h2><a name="differences_1_32"></a>Differences from Boost 1.32</h2>
 <ul>
-    <li>Ehanced support for fast serialiation for native binary archives. By Mattias Troyer.
-    <li>Improved implementation of "export" functionality.  Removes header ordering
-        requirement and eliminates the maintainence of a pre-determined list of "known archives"
-        By David Abrahams.
-    <li>Improved support for STLPort.
+    <li>
+        Dynamic Linking Library (DLLs and shared libraries) for platforms which support 
+        them. See <a href="../../../more/getting_started/windows.html#auto-linking">Automatic 
+            Linking on Windows</a>.
+    <li>
+    Implementation of auto-link for compilers which can support this.
+    <li>
+        Better support for <em>Argument Dependent Lookup</em>
+    and two-phase lookup. This results in simpler rules regarding the placing of 
+    serialization specializations namespaces.
+    <li>
+    Enhanced documentation to help explain usage of the above.
+    <li>
+    Adjustments to improve support for less conformant compilers.
+    <li>
+        Improved <code>const</code> correctness for save/load operators. Note that this 
+        may produce compile time errors in code which compiled without problem in 
+        earlier boost releases. In most cases the fix is trivial. In other cases, code 
+        should be scrutinized to be sure that it doesn't use the serialization system 
+        in a way which may introduce subtle bugs in to the program. A fuller 
+        explanation of this issue can be found <a target="detail" href="traits.html#tracking">
+            here</a>.
+    <li>
+        A new implementation of serialization for <code style="white-space: normal">shared_ptr&lt;T&gt;</code>. 
+        This is compatible with public interface of <code style="white-space: normal">shared_ptr&lt;T&gt;</code>
+        so it should be more robust and not have to change in the future. The 
+        implementation optionally includes code to load <code style="white-space: normal">shared_ptr&lt;T&gt;</code>
+        stored in archives created with boost 1.32. This code is stored in 'he header: <code style="white-space: normal">
+            boost/serialization/shared_ptr_132.hpp</code>. If your application needs to 
+        load archives created with boost 1.32 libraries, include the above header 
+        before each inclusion of <code style="white-space: normal">boost/serialization/shared_ptr.hpp</code>.
+    <li>
+    More compilers tested and supported.
+    <li>
+    Miscellaneous bug fixes.
 </ul>
-
 <h2><a name="todo"></a>Pending issues</h2>
 <ul>
-    <li>Compile, and test on more platforms
-    <li>implement <code>is_virtual_base&lt;T&gt;</code> to automatically
-    eliminate redundancy in virtual base class serialization.
-    <li>currently can't serialize through a pointer an object a of class
-    that implements its own <code style="white-space: normal">new/delete</code> operators.
-    <li>Its possible that <code style="white-space: normal">std::string</code>
-    and <code style="white-space: normal">std::wstring</code> contain characters such as
-    '\0' which cannot be rendered in XML without an escape mechanism.  Currently there is 
-    no such escape mechanism implemented.
-    <li>A subtle error in the implementation of serialiaton of <code style="white-space: normal">std::map</code>
-    is fixed in this version.  Unfortunately, the fix breaks serialization of
-    <code style="white-space: normal">std::map</code> for those compilers which do not support
-    partial template specialization.
-    <li>Floating point values which are number cannot be serialized to text base archives.
+    <li>
+    Rvalues cannot be serialized. It would be possible to implement this for 
+    untracked types, but this has not been done.
+    <li>
+    Pointers to pointers cannot currently be serialized
+    <li>
+        It's possible that <code style="white-space: normal">std::string</code> and <code style="white-space: normal">
+            std::wstring</code>
+    contain characters such as '\0' and -1 (EOF) which cannot be rendered in text 
+    and XML archives without an escape mechanism. Currently there is no such escape 
+    mechanism implemented.
+    <li>
+        A subtle error in the implementation of serializaton of <code style="white-space: normal">
+            std::map</code> is fixed in this version. Unfortunately, the fix breaks 
+        serialization of <code style="white-space: normal">std::map</code>
+    for those compilers which do not support partial template specialization. Also, 
+    types which contain pointers or tracked types might not work correctly.
+    <li>
+        Serialization of virtual base classes relies upon RTTI.  It will fail when used on
+        systems which don't have RTTI enabled.
 </ul>
 <p>
-Aside from the above, there are a number of issus related to specific platforms.  
-These are listed in <a href="implementation.html#othercompilerissues">Specific Compiler/Library Issues</a>.
-
-<hr>
-<p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2002-2007. 
-Distributed under the Boost Software License, Version 1.0. (See
-accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-</i></p>
+    Aside from the above, there are a number of issues related to specific 
+    platforms. These are listed in <a href="implementation.html#othercompilerissues">Specific 
+        Compiler/Library Issues</a>.
+    <hr>
+<p>
+    <i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2002-2009. 
+        Distributed under the Boost Software License, Version 1.0. (See accompanying 
+        file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) </i>
+</p>
 </body>
 </html>
@@ -1,4 +1,4 @@
-<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <!--
 (C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com . 
@@ -48,12 +48,13 @@ http://www.boost.org/LICENSE_1_0.txt)
        <dt><a href="#splittingfreefunctions">Free Functions</a>
      </dl>
  </dl>
-  <dt><a href="#pointers">Pointers</a>
+  <dt><a href="#pointeroperators">Pointers</a>
    <dl class="page-index">
      <dt><a href="#constructors">Non-Default Constructors</a>
      <dt><a href="#derivedpointers">Pointers to Objects of Derived Classes</a>
      <dl class="page-index">
        <dt><a href="#registration">Registration</a>
+        <dt><a href="#export">Export</a>
        <dt><a href="#instantiation">Instantiation</a>
        <dt><a href="#selectivetracking">Selective Tracking</a>
        <dt><a href="#runtimecasting">Runtime Casting</a>
@@ -61,8 +62,8 @@ http://www.boost.org/LICENSE_1_0.txt)
    </dl>
  <dt><a href="#references">References</a>
  <dt><a href="#arrays">Arrays</a>
-  <dt><a href="wrappers.html">Serialization Wrappers</a>
  <dt><a href="traits.html">Class Serialization Traits</a>
+  <dt><a href="wrappers.html">Serialization Wrappers</a>
  <dt><a href="#models">Models - Serialization Implementations Included in the Library</a>
 </dl>

@@ -70,21 +71,20 @@ A type <code style="white-space: normal">T</code> is <strong>Serializable</stron
 if and only if one of the following is true:
 <ul>
  <li>it is a primitive type.<br>
-    In this document, we use the term primitive type to mean
-    types whose data is simply saved/loaded to/from an archive
-    with no further processing.  Arithmetic (including characters), 
-    bool, enum and stl::string and stl::wstring types are primitive types.  Using 
-    <a target="detail" href="traits.html#Traits">serialization traits</a>,
-    any user type can also be designated as "primitive"
-    so that it is handled in this way.
-  <li>It is a class type and one of the following has been declared:
+    By <i>primitive type</i> we mean a C++ built-in type and <i>ONLY</i>
+    a C++ built-in type. Arithmetic (including characters), bool, enum are primitive types.
+    Below in <a target="detail" href="traits.html#Traits">serialization traits</a>,
+    we define a "primitive" implementation level in a different way for a 
+    different purpose.  This can be a source of confusion.
+  <li>It is a class type and one of the following has been declared according
+    to the prototypes detailed below:
    <ul>
    <li>a class member function <code style="white-space: normal">serialize</code>
    <li>a global function <code style="white-space: normal">serialize</code>
    </ul>
  <li>it is a pointer to a <strong>Serializable</strong> type.
  <li>it is a reference to a <strong>Serializable</strong> type.
-  <li>it is an native C++ Array of <strong>Serializable</strong> type.
+  <li>it is a native C++ Array of <strong>Serializable</strong> type.
 </ul>

 <h2><a name="primitiveoperators">Primitive Types</a></h2>
@@ -101,8 +101,8 @@ For class/struct types, the template operators &amp;, &lt;&lt;, and &gt;&gt;
 will generate code that invokes the programmer's serialization code for the
 particular data type.  There is no default.  An attempt to serialize a
 class/struct for which no serialization has been explicitly specified
-will result in a compile time error.  The serialiation of a class can
-be specified via either a class member function or a free funcation which
+will result in a compile time error.  The serialization of a class can
+be specified via either a class member function or a free function which
 takes a reference to an instance of the class as an argument.

 <h3><a name="member">Member Function</a></h3>
@@ -136,7 +136,7 @@ be made accessible to the serialization library by including:
 friend class boost::serialization::access;
 </code></pre>
 in the class definition.  This latter method should be preferred over the option
-of making member function public. This will prevent serialization functions from 
+of making the member function public. This will prevent serialization functions from 
 being called from outside the library.  This is almost certainly an error.  Unfortunately,
 it may appear to function but fail in a way that is very difficult to find.
 <p>
@@ -180,7 +180,7 @@ possible to serialize them.  So in some instances, minor modifications to the
 class to be serialized will be necessary even when using this "non-intrusive"
 method.  In practice this may not be such a problem as many libraries 
 (E.G. STL) expose enough information to permit implementation of non-intrusive
-serialization with absolutly no changes to the library.
+serialization with absolutely no changes to the library.

 <h4><a name="namespaces">Namespaces for Free Function Overrides</a></h4>
 For maximum portability, include any free functions templates and definitions in the 
@@ -196,7 +196,7 @@ templates can be in any of the following namespaces:
 Note that, at first glance, this suggestion may seem to be wrong for compilers which implement
 two phase lookup.  In fact, the serialization library used a perhaps overly clever 
 method to support this rule even for such compilers.  Those with an interest in studying
-this furter will find more information in 
+this further will find more information in 
 <a target=serialization_hpp href="../../../boost/serialization/serialization.hpp">serialization.hpp</a>

 <h3><a name="classmembers">Serialization of Class Members</a></h3>
@@ -219,7 +219,7 @@ base_object.hpp
 includes the template:
 <pre><code>
 template&lt;class Base, class Derived&gt;
-Base & base_object(Derived &d);
+Base &amp; base_object(Derived &amp;d);
 </code></pre>
 which should be used to create a reference to an object of the base
 which can be used as an argument to the archive serialization operators.
@@ -255,14 +255,14 @@ Loading <code style="white-space: normal">const</code> members can be addressed
    ar &amp; const_cast&lt;T &amp;&gt;(t);
 </code></pre>
 Note that this violates the spirit and intention of the <code style="white-space: normal">const</code>
-keyword. <code style="white-space: normal">const</code> members are intialized when a class instance
+keyword. <code style="white-space: normal">const</code> members are initialized when a class instance
 is constructed and not changed thereafter.  However, this may
 be most appropriate in many cases.  Ultimately, it comes down to 
 the question about what <code style="white-space: normal">const</code> means in the context
 of serialization. 

 <h4><a name="templates"></a>Templates</h4>
-Implementation serialization for templates is exactly the same process 
+Implementation of serialization for templates is exactly the same process 
 as for normal classes and requires no additional considerations.  Among
 other things, this implies that serialization of compositions of templates
 are automatically generated when required if serialization of the 
@@ -273,7 +273,7 @@ class <code style="white-space: normal">my_t</code>, then serialization for
 <code style="white-space: normal">std::list&lt; boost::shared_ptr&lt; my_t&gt; &gt;</code> is already available
 for use.
 <p>
-See for an example that shows how this idea might be implemented for your own
+For an example that shows how this idea might be implemented for your own
 class templates, see
 <a href="../example/demo_auto_ptr.cpp" target="demo_auto_ptr.cpp">
 demo_auto_ptr.cpp</a>.
@@ -434,7 +434,7 @@ is preferred.  The key to the serialization implementation is that objects are s
 and loaded in exactly the same sequence.  Using the <code style="white-space: normal">&amp;</code> 
 operator and <code style="white-space: normal">serialize</code>
 function guarantees that this is always the case and will minimize the
-occurence of hard to find errors related to synchronization of 
+occurrence of hard to find errors related to synchronization of 
 <code style="white-space: normal">save</code> and <code style="white-space: normal">load</code> 
 functions.
 <p>
@@ -463,7 +463,7 @@ following situations must be addressed:
    be determined and saved. Upon restoration the correct type
    must be created and its address correctly cast to the base
    class. That is, polymorphic pointers have to be considered.
-    <li>NULL pointers must be dectected when saved and restored
+    <li>NULL pointers must be detected when saved and restored
    to NULL when deserialized.
 </ol>

@@ -482,7 +482,7 @@ Loading a pointer:
 <ol>
    <li>read a tag from the archive.
    <li>determine the type of object to be created
-    <li>if the object has already been loaded, return it's address.
+    <li>if the object has already been loaded, return its address.
    <li>otherwise, create a new instance of the object
    <li>read the data back in using the operators described above
    <li>return the address of the newly created object.
@@ -496,7 +496,7 @@ and <code style="white-space: normal">&gt;&gt;</code> operators
    <li>Loading the same pointer object multiple times
    results in only one object being created, thereby replicating
    the original pointer configuration. 
-    <li>Structures such as collections of polymorphic pointers,
+    <li>Structures, such as collections of polymorphic pointers,
    are handled with no special effort on the part of users of this library.
 </ul>
 Serialization of pointers of derived types through a pointer to the
@@ -543,7 +543,7 @@ private:
        ar &amp; m_state;
    }
 public:
-    // no default construct guarentees that no invalid object
+    // no default construct guarantees that no invalid object
    // ever exists
    my_class(int attribute) :
        m_attribute(attribute),
@@ -591,7 +591,7 @@ class derived_one : public base {
 class derived_two : public base {
    ...
 };
-main(){
+int main(){
    ...
    base *b;
    ...
@@ -604,7 +604,7 @@ Should it be an object of class <code style="white-space: normal">derived_one</c
 <code style="white-space: normal">derived_two</code>, or maybe <code style="white-space: normal">base</code>?
 <p>
 It turns out that the kind of object serialized depends upon whether the base class
-(<code style="white-space: normal">base</code> in this case) is polymophic or not.
+(<code style="white-space: normal">base</code> in this case) is polymorphic or not.
 If <code style="white-space: normal">base</code> is not polymorphic, that is if it has no
 virtual functions, then an object of the type <code style="white-space: normal">base</code>
 will be serialized. Information in any derived classes will be lost. If this is what is desired
@@ -630,7 +630,7 @@ the same sequence.  This includes "registration".
 <p>
 Expanding our previous example:
 <pre><code>
-main(){
+int main(){
    derived_one d1;
    derived_two d2:
    ...
@@ -659,11 +659,11 @@ This can be addressed by registering the derived class explicitly.  All archives
 derived from a base class which implements the following template:
 <pre><code>
 template&lt;class T&gt;
-register_type();
+register_type(T * = NULL);
 </code></pre>
 So our problem could just as well be addressed by writing:
 <pre><code>
-main(){
+int main(){
    ...
    ar.template register_type&lt;derived_one&gt;();
    ar.template register_type&lt;derived_two&gt;();
@@ -674,9 +674,10 @@ main(){
 </code></pre>
 Note that if the serialization function is split between save and load, both
 functions must include the registration.  This is required to keep the save
-and corresponding load in syncronization.
-<p>
-This will work but may be inconvenient.  We don't always know which derived
+and corresponding load in synchronization.
+
+<h4><a name="export">Export</a></h4>
+The above will work but may be inconvenient.  We don't always know which derived
 classes we are going to serialize when we write the code to serialize through
 a base class pointer.  Every time a new derived class is written we have to
 go back to all the places where the base class is serialized and update the
@@ -689,7 +690,7 @@ So we have another method:
 BOOST_CLASS_EXPORT_GUID(derived_one, "derived_one")
 BOOST_CLASS_EXPORT_GUID(derived_two, "derived_two")

-main(){
+int main(){
    ...
    base *b;
    ...
@@ -718,7 +719,7 @@ This means that serialization code must be instantiated for each
 combination of archive and data type that is serialized in the program.
 <p>
 Polymorphic pointers of derived classes may never be referred to 
-explictly by the program so normally code to serialize such classes
+explicitly by the program so normally code to serialize such classes
 would never be instantiated.  So in addition to including export key
 strings in an archive, <code style="white-space: normal">BOOST_CLASS_EXPORT_GUID</code> explicitly
 instantiates the class serialization code for all archive classes used 
@@ -754,7 +755,7 @@ can be used.
 In order to properly translate between base and derived pointers
 at runtime, the system requires each base/derived pair be found
 in a table.  A side effect of serializing a base object with
-<code style="white-space: normal">boost::serialization::base_object&lt;Base&gt;(Derived &)</code>
+<code style="white-space: normal">boost::serialization::base_object&lt;Base&gt;(Derived &amp;)</code>
 is to ensure that the base/derived pair is added to the table
 before the <code style="white-space: normal">main</code> function is entered.
 This is very convenient and results in a clean syntax.  The only
@@ -788,18 +789,18 @@ class derived : public base {
    template&lt;class Archive&gt;
    void serialize(Archive &amp; ar, const unsigned int file_version){
        // method 1 : invoke base class serialization
-        boost::serialization::base_object&lt;base&gt;(*this);
+        ar &amp; boost::serialization::base_object&lt;base&gt;(*this);
        // method 2 : explicitly register base/derived relationship
        boost::serialization::void_cast_register&lt;derived, base&gt;(
-            static_cast&lt;base *&gt;(NULL),
-            static_cast&lt;derived *&gt;(NULL)
+            static_cast&lt;derived *&gt;(NULL),
+            static_cast&lt;base *&gt;(NULL)
        )
    }
 };

 BOOST_CLASS_EXPORT_GUID(derived, "derived")

-main(){
+int main(){
    //...
    std::stringstream ss;
    boost::archive::text_iarchive ar(ss);
@@ -906,11 +907,11 @@ rather than
 <pre><code>
 #include &lt;list&gt;
 </code></pre>
-Since the former includes the latter, this all that is necessary.
+Since the former includes the latter, this is all that is necessary.
 The same holds true for all STL collections as well as templates
 required to support them (e.g. <code style="white-space: normal">std::pair</code>).
 <p>
-As of this writing, the library contains serialization of the following boost clases:
+As of this writing, the library contains serialization of the following boost classes:
 <ul>
  <li>optional
  <li>variant
@@ -918,8 +919,9 @@ As of this writing, the library contains serialization of the following boost cl
  <li>shared_ptr
  <li>auto_ptr (demo)
 </ul>
+C++17 <code style="white-space: normal">std::variant is supported as well</code>.
 Others are being added to the list so check the boost files section and headers for
-new implmentations!
+new implementations!
 <hr>
 <p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2002-2004. 
 Distributed under the Boost Software License, Version 1.0. (See
@@ -92,36 +92,36 @@ instance of <code style="white-space: normal">sp_counted_base_impl<T, ...></code
 doesn't have a default constructor, serialization requires
 specification of the following overload:
 <pre><code>
-template&lt;class Archive, class P, class D>
+template&lt;class Archive, class P, class D&gt;
 inline void save_construct_data(
    Archive &amp; ar,
-    const boost::detail::sp_counted_base_impl<P, D> * t, 
+    const boost::detail::sp_counted_base_impl&lt;P, D&gt; * t, 
    const unsigned int file_version
 ){
    // variables used for construction
-    ar &lt;&lt; t->ptr;
+    ar &lt;&lt; t-&gt;ptr;
    ar &lt;&lt; *t;
 }

-template<class Archive, class P, class D>
+template&lt;class Archive, class P, class D&gt;
 inline void load_construct_data(
    Archive &amp; ar,
-    boost::detail::sp_counted_base_impl<P, D> * t, 
+    boost::detail::sp_counted_base_impl&lt;P, D&gt; * t, 
    const unsigned int file_version
 ){
    P ptr_;
    ar &gt;&gt; ptr_;
    // placement new
-    ::new(t)boost::detail::sp_counted_base_impl<P, D>(ptr_,  D());
-    ar &gt;&gt;; *t;
+    ::new(t)boost::detail::sp_counted_base_impl&lt;P, D&gt;(ptr_,  D());
+    ar &gt;&gt; *t;
 }
 </code></pre>
 The statement <code style="white-space: normal">ar &gt;&gt; ptr_</code> is key. This deserializes
-the same pointer deserialzed above.  Default object tracking will ensure
+the same pointer deserialized above.  Default object tracking will ensure
 that no more than one instance of the object is created and that the
 pointer returned by multiple deserializations are all the same. Hence,
 regardless of how many instances of <code style="white-space: normal">shared_ptr/shared_count</code>
-corresponding to a particular object are created, the will all point
+corresponding to a particular object are created, they will all point
 to the same object.
 <p>
 Since <code style="white-space: normal">sp_counted_base_impl&lt;P, D&gt;</code> is derived from 
@@ -135,7 +135,7 @@ inline void serialize(
    const unsigned int file_version,
    int
 ){
-    ar & boost::serialization::base_object&lt;
+    ar &amp; boost::serialization::base_object&lt;
 	boost::detail::sp_counted_base
    &gt;(*this);
 }
@@ -150,7 +150,7 @@ inline void serialize(
 ){
 }
 </code></pre>
-It would seem we're done, running the test program,
+It would seem we're done, but running the test program,
 <a href="../example/demo_shared_ptr.cpp" target="demo_shared_ptr_cpp">
 demo_shared_ptr.cpp
 </a>,
@@ -170,7 +170,7 @@ This indicates that we're not quite done.  Due to default object
 tracking, <code style="white-space: normal">sp_counted_base_impl&lt;P, D&gt;</code> is only
 created once regardless of how many shared pointers point to the
 same object.  Of course, it has to be this way. The reference
-count starts at 1 and is never incrememented.  Code must be added
+count starts at 1 and is never incremented.  Code must be added
 to the serialization functions to maintain the proper reference
 count.
 <p>
@@ -191,13 +191,13 @@ In this case we need only the latter function so we can replace the
 base object serialization with:
 <pre><code>
 // register the relationship between each derived class
-// its polymorphic base
+// and its polymorphic base
 void_cast_register&lt;
    boost::detail::sp_counted_base_impl&lt;P, D&gt;
    boost::detail::sp_counted_base, 
 &gt;();
 </code></pre>
-and we don't have to include a trival serializer for <code style="white-space: normal">sp_counted_base</code>
+and we don't have to include a trivial serializer for <code style="white-space: normal">sp_counted_base</code>.
 <p>
 Finally we need to specify name-value pair wrappers if we want to be able
 to use this serialization with XML archives.
@@ -219,9 +219,9 @@ shared pointers:
 BOOST_SHARED_POINTER_EXPORT(T)
 BOOST_SHARED_POINTER_EXPORT_GUID(T, K)
 </pre></code>
-These are specialize versions of the macros used for exporting classes serialized through raw pointers.
+These are specialized versions of the macros used for exporting classes serialized through raw pointers.
 <p>
-Clearly, complete, correct and exception safe serialization of smart pointers is going to
+Clear, complete, correct and exception safe serialization of smart pointers is going to
 be a challenge.  I hope that this implementation provides a useful
 starting point for such an effort.
 <hr>
@@ -20,7 +20,7 @@ http://www.boost.org/LICENSE_1_0.txt)
    </td>
    <td valign="top"> 
      <h1 align="center">Serialization</h1>
-      <h2 align="center"><code style="white-space: normal">shared_ptr&lt;class T&gt;</code> Revisted</h2>
+      <h2 align="center"><code style="white-space: normal">shared_ptr&lt;class T&gt;</code> Revisited</h2>
    </td>
  </tr>
 </table>
@@ -32,7 +32,7 @@ Unfortunately, this way of doing it suffered from some undesirable features
  <li>It was dependent on the Boost implementation of <code style="white-space: normal">shared_ptr</code>.
  The <code style="white-space: normal">shared_ptr</code> interface has been included
  in <code style="white-space: normal">std::tr1</code> and may someday be included in the standard
-  C++ library. An implementation which depends only on the public interface can be guarenteed to
+  C++ library. An implementation which depends only on the public interface can be guaranteed to
  function with any other future implementation of <code style="white-space: normal">shared_ptr</code>.
  <li>It required extra macros for export.
 </ul>
@@ -40,24 +40,24 @@ Unfortunately, this way of doing it suffered from some undesirable features
 <pre><code>
 template&lt;class Archive, class T&gt;
 inline void save(
-    Archive & ar,
-    const boost::shared_ptr&ltT&gt; &t,
+    Archive &amp; ar,
+    const boost::shared_ptr&lt;T&gt; &amp;t,
    const unsigned int /* file_version */
 ){
    const T * t_ptr = t.get();
-    // just seriailize the underlying raw pointer
-    ar &lt;&lt: boost::serialization::make_nvp("px", t_ptr);
+    // just serialize the underlying raw pointer
+    ar &lt;&lt; boost::serialization::make_nvp("px", t_ptr);
 }

-template&lt;class Archive, class T&gt
+template&lt;class Archive, class T&gt;
 inline void load(
-    Archive & ar,
-    boost::shared_ptr&lt;T&gt; &t,
+    Archive &amp; ar,
+    boost::shared_ptr&lt;T&gt; &amp;t,
    const unsigned int file_version
 ){
    T* r;
-    // recover the underlying raw poiter
-    ar >> boost::serialization::make_nvp("px", r);
+    // recover the underlying raw pointer
+    ar &gt;&gt; boost::serialization::make_nvp("px", r);

    // To Do - match up with other shared pointers which 
    // use this same raw pointer.
@@ -65,13 +65,13 @@ inline void load(
 }
 </code></pre>

-In priniciple this is very much simpler than the original implementation.  Completion of
+In principle, this is very much simpler than the original implementation.  Completion of
 this code requires:

 <ol>
  <li>Filling in the "To Do".  This required making an extra map for
  <code style="white-space: normal">shared_ptr</code> instances.
-  <li>A method for identifing pointers to the same objects from pointers to their base classes.
+  <li>A method for identifying pointers to the same objects from pointers to their base classes.
  <li>Backward compatibility with pointers serialized by the previous method.  This exploits
  the serialization class versioning.
  <li>Proper handling of <code style="white-space: normal">weak_ptr</code>.
@@ -0,0 +1,95 @@
+<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!--
+(C) Copyright 2002-10 Robert Ramey - http://www.rrsd.com .
+Use, modification and distribution is subject to the Boost Software
+License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+-->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<link rel="stylesheet" type="text/css" href="../../../boost.css">
+<link rel="stylesheet" type="text/css" href="style.css">
+<title>Serialization - Derivation from an Existing Archive</title>
+</head>
+<body link="#0000ff" vlink="#800080">
+<table border="0" cellpadding="7" cellspacing="0" width="100%" summary="header">
+  <tr> 
+    <td valign="top" width="300"> 
+      <h3><a href="../../../index.htm"><img height="86" width="277" alt="C++ Boost" src="../../../boost.png" border="0"></a></h3>
+    </td>
+    <td valign="top"> 
+      <h1 align="center">Serialization</h1>
+      <h2 align="center">A Simple Logging Archive Class</h2>
+    </td>
+  </tr>
+</table>
+<hr>
+The purpose of this example is to help clarify the usage of the
+<a href="archives.html"><strong>Archive Concept</strong></a> 
+so that one can implement his own archive classes.  
+<a href="../example/simple_log_archive.hpp" target="simple_archive_hpp">
+<code>simple_log_archive.hpp</code></a> implements a simple but useful
+archive class. This class can be used to send any serializable types
+on an output text stream in a readable format. Usage of this facility
+is trivially easy:
+
+<pre><code>
+#include "simple_log_archive.hpp"
+...
+// display the complete schedule
+simple_log_archive log(std::cout);
+log &lt;&lt; schedule;
+</code></pre>
+
+and it produces the following output
+
+<pre><code>
+schedule 
+ count 6
+ item 
+  first 
+   driver bob
+   hour 6
+   minute 24
+  second -&gt; 
+   stops 
+    count 3
+    item -&gt; 
+     latitude 
+      degrees 34
+      minutes 135
+      seconds 52.56
+     longitude 
+      degrees 134
+      minutes 22
+      seconds 78.3
+...
+</code></pre>
+
+The complete example is <a href="../example/demo_simple_log.cpp" target="demo_simple_log_cpp">
+<code>demo_simple_log.cpp</code></a>.  Look at 
+<a href="archive_reference.html#trivial">Trivial Archive</a> to get a 
+better understanding of how this works.
+
+Also, note the following:
+<ul>
+  <li>Only 160 lines of code.
+  <li>Header only - linking with the serialization library not required.
+  <li>Displays ALL <a href="serialization.html"><strong>Serializable</strong></a> types.
+  <li>Lacks some features.
+  <ul>
+    <li>it will not display the data from the derived type given the pointer to a 
+    polymorphic base class.  That is, only displays the information of the base class.
+    To add that see the next example.
+    <li>doesn't display information serialized as binary data
+  </ul>
+</ul>
+
+<hr>
+<p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2002-2010. 
+Distributed under the Boost Software License, Version 1.0. (See
+accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+</i></p>
+</body>
+</html>
@@ -0,0 +1,254 @@
+<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!--
+(C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com . 
+Use, modification and distribution is subject to the Boost Software
+License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+-->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<link rel="stylesheet" type="text/css" href="../../../boost.css">
+<link rel="stylesheet" type="text/css" href="style.css">
+<title>Serialization - singleton</title>
+</head>
+<body link="#0000ff" vlink="#800080">
+<table border="0" cellpadding="7" cellspacing="0" width="100%" summary="header">
+  <tr> 
+    <td valign="top" width="300"> 
+      <h3><a href="../../../index.htm"><img height="86" width="277" alt="C++ Boost" src="../../../boost.png" border="0"></a></h3>
+    </td>
+    <td valign="top"> 
+      <h1 align="center">Serialization</h1>
+      <h2 align="center"><code style="white-space: normal">singleton</code></h2>
+    </td>
+  </tr>
+</table>
+<hr>
+<dl class="page-index">
+  <dt><a href="#motivation">Motivation</a>
+  <dt><a href="#features">Features</a>
+  <dt><a href="#classinterface">Class Interface</a>
+  <dt><a href="#requirements">Requirements</a>
+  <dt><a href="#example">Examples</a>
+  <dt><a href="#multithreading">Multi-Threading</a>
+</dl>
+
+<h3><a name="motivation">Motivation</a></h3>
+The serialization library relies on the existence of a number
+of static variables and tables to store information related
+to runtime types.  Examples are tables which relate exported
+names to types and tables which relate base classes to derived
+classes.  Construction, destruction and usage of these variables
+requires consideration of the following issues:
+<ul>
+  <li>Some static data variable and constant entries refer to others.  
+  The sequence of initialization cannot be arbitrary but must be in proper
+  sequence.</li>
+  <li>A number of static variables aren't referred to explicitly and, without
+  special precautions, will be stripped by most code optimizers</li>
+  <li>Many of these variables are created by templates and special care must
+  be taken to be sure that they are instantiated</li>
+  <li>In a multi-threading system, its possible that these static variables
+  will be accessed concurrently by separate threads.  This would create a
+  race condition with unpredictable behavior</li>
+</ul>
+This singleton class addresses all of the above issues.
+
+<h3><a name="features">Features</a></h3>
+This singleton implementation has the following features:
+<ul>
+  <li>
+    Any instance will be constructed before any attempt is made to access it.</li>
+  <li>
+    Any instance created with a template is guaranteed to be instantiated.
+  <li>
+    Regardless of whether or not an instance has been explicitly
+    referred to, it will not be stripped by the optimizer when the
+    executable is built in release mode.
+  <li>
+    All instances are constructed before 
+    <code style="white-space: normal">main</code> is called
+    regardless of where they might be referenced within the program.
+    In a multi-tasking system, this guarantees that there will be no 
+    race conditions during the construction of any instance.  No
+    thread locking is required to guarantee this.
+  <li>
+    The above implies that any <code style="white-space: normal">const</code>
+    instances are thread-safe during the whole program.  Again, no
+    thread locking is required.
+  <li>
+    If a mutable instance is created, and such an instance is modified
+    after main is called in a multi-threading system, there exists
+    the possibility that a race condition will occur.  The serialization
+    library takes care that in the few places where a mutable
+    singleton is required, it is not altered after 
+    <code style="white-space: normal">main</code> is called.
+    For a more general purpose usage, thread locking on this
+    singleton could easily be implemented.  But as the serialization
+    library didn't require it, it wasn't implemented.
+</ul>
+
+<h3><a name="classinterface">Class Interface</a></h3>
+<pre><code>
+namespace boost { 
+namespace serialization {
+
+template &lt;class T&gt;
+class singleton : public boost::noncopyable
+{
+public:
+    static const T &amp; get_const_instance();
+    static T &amp; get_mutable_instance();
+    static bool is_destroyed();
+};
+
+} // namespace serialization 
+} // namespace boost
+</code></pre>
+
+<dl>
+
+<dt><h4><pre><code>
+static const T &amp; get_const_instance();
+</code></pre></h4></dt>
+<dd>
+Retrieve a constant reference to the singleton for this type.
+</dd>
+
+<dt><h4><pre><code>
+static T &amp; get_mutable_instance();
+</code></pre></h4></dt>
+<dd>
+Retrieve a mutable reference to the singleton for this type.
+</dd>
+
+<dt><h4><pre><code>
+static bool is_destroyed();
+</code></pre></h4></dt>
+<dd>
+Return <code>true</code> if the destructor on this singleton has been 
+called.  Otherwise, return <code>false</code>.
+</dd>
+
+</dl>
+
+<h3><a name="requirements">Requirements</a></h3>
+In order to be used as 
+<a target="singleton.hpp" href = "../../../boost/serialization/singleton.hpp">
+<code style="white-space: normal">
+singleton&lt;T&gt;
+</code>
+</a>, the type T must be default constructible. 
+It doesn't require static variables - though it may have them.
+Since the library guarantees that only one instance of 
+<a target="singleton.hpp" href = "../../../boost/serialization/singleton.hpp">
+<code style="white-space: normal">
+singleton&lt;T&gt;
+</code>
+</a> 
+exists and all access is through the above static interface
+functions, common member functions of T become
+the functional equivalent of 
+<code style="white-space: normal">static</code> functions.
+
+<h3><a name="example">Examples</a></h3>
+There are at least two different ways to use this class template.
+Both are used in the serialization library.
+<p>
+The first way is illustrated by an excerpt from the file
+<code style="white-space: normal"><a target="extended_type_info" href="../src/extended_type_info.cpp">extended_type_info.cpp</a></code>.
+which contains the following code:
+
+<pre><code>
+typedef std::set&lt;const extended_type_info *, key_compare&gt; ktmap;
+...
+void
+extended_type_info::key_register(const char *key) {
+    ...
+    result = singleton&lt;ktmap&gt;::get_mutable_instance().insert(this);
+    ...
+}
+</code></pre>
+Just by referring to the singleton instance anywhere in the program
+will guarantee that one and only one instance for the specified
+type (<code style="white-space: normal">ktmap</code> in this example) 
+will exist throughout the program.  There is no need for any other
+declaration or definition.
+<p>
+A second way is to use 
+<a target="singleton.hpp" href = "../../../boost/serialization/singleton.hpp">
+<code style="white-space: normal">
+singleton&lt;T&gt;
+</code> 
+</a>
+as one of the base classes of the type.  This is illustrated by a simplified
+excerpt from
+<a target="extended_type_info_typeid.hpp" href = "../../../boost/serialization/extended_type_info_typeid.hpp">
+<code style="white-space: normal">
+extended_type_info_typeid.hpp
+</code> 
+</a>
+
+<pre><code>
+template&lt;class T&gt;
+class extended_type_info_typeid : 
+    public detail::extended_type_info_typeid_0,
+    public singleton&lt;extended_type_info_typeid&lt;const T&gt; &gt;
+{
+    friend class singleton&lt;extended_type_info_typeid&lt;const T&gt; &gt;;
+private:
+    // private constructor to inhibit any existence other than the 
+    // static one.  Note: not all compilers support this !!!
+    extended_type_info_typeid() :
+        detail::extended_type_info_typeid_0()
+    {
+        type_register(typeid(T));
+    }
+    ~extended_type_info_typeid(){}
+    ...
+};
+</code></pre>
+
+This usage will permit a more natural syntax to be used:
+<pre><code>
+extended_type_info_typeid&lt;T&gt;::get_const_instance()
+</code></pre>
+
+Again, including one or more of the above statements anywhere
+in the program will guarantee that one and only one instance
+is created and referred to.
+
+<h3><a name="multithreading">Multi-Threading</a></h3>
+This singleton CAN be safely used in multi-threading applications if one
+is careful follow a simple rule:
+<p>
+<b>Do not call get_mutable_instance when more than one thread is running!</b>
+All singletons used in the serialization library follow this rule.  
+In order to help detect accidental violations of this rule there
+exist singleton lock/unlock functions.
+<pre><code>
+void boost::serialization::singleton_module::lock();
+void boost::serialization::singleton_module::unlock();
+bool boost::serialization::singleton_module::is_locked();
+</code></pre>
+In a program compiled for debug, any invocation of 
+<code style="white-space: normal">get_mutable_instance()</code>
+while the library is in a "locked" state will trap in an assertion.
+The singleton module lock state is initialized as "unlocked" to permit
+alteration of static variables before 
+<code style="white-space: normal">main</code> is called. 
+The <code style="white-space: normal">lock()</code> and
+<code style="white-space: normal">unlock()</code> are "global"
+in that they affect ALL the singletons defined by this template.
+All serialization tests invoke <code style="white-space: normal">lock()</code>
+at the start of the program.  For programs compiled in release
+mode these functions have no effect.
+
+<hr>
+<p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2007. 
+Distributed under the Boost Software License, Version 1.0. (See
+accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+</i></p>
+</body>
+</html>
@@ -30,23 +30,23 @@ To cast from one type to another related type, C++ provides the following
 operators:

 <dl>
-  <dt><code>static_cast&lt;T *<&gt;(U *)<br>static_cast&lt;T &<&gt;(U &)</code></dt>
+  <dt><code>static_cast&lt;T *&gt;(U *)<br>static_cast&lt;T &amp;&gt;(U &amp;)</code></dt>
  <dd>
    <ul>
-      <li>required if neither T nor U are not polymorphic
+      <li>required if neither T nor U are polymorphic
      <li>permitted in other cases.
-      <li>fails to detect erroneas casts of polymophic pointers/references at runtime.
+      <li>fails to detect erroneous casts of polymorphic pointers/references at runtime.
      <li>does not permit "cross casting"
      <li>inline function calls can be optimized away during compile time.
    </ul>
  </dd>
  <p>
-  <dt><code>dynamic_cast&lt;T *<&gt;(U *)<br>dynamic_cast&lt;T &<&gt;(U &)</code></dt>
+  <dt><code>dynamic_cast&lt;T *&gt;(U *)<br>dynamic_cast&lt;T &amp;&gt;(U &amp;)</code></dt>
  <dd>
    <ul>
      <li>permitted if either T or U are polymorphic
      <li>prohibited in other cases.
-      <li>throws exception on detecting erroneas casts of polymorphic pointers/references
+      <li>throws exception on detecting erroneous casts of polymorphic pointers/references
          at runtime.
      <li>permits "cross casting"
      <li>cannot optimise inline virtual functions at compile time.
@@ -58,7 +58,7 @@ These rules can make it difficult to use casting with a function template argume
 Consider the following example:

 <pre><code>
-#include &lt;boost/smart_cast.hpp&gt;
+#include &lt;boost/serialization/smart_cast.hpp&gt;

 struct top {
 };
@@ -91,14 +91,14 @@ template&lt;class T&gt;
 bool is_storable(T &amp;t){
    // what type of cast to use here?

-    // this fails at compiler time when T == base2
+    // this fails at compile time when T == base2
    // return static_cast&lt;base1 &amp;&gt;(t).is_storable();

-    // this fails at compiler time when T == top
+    // this fails at compile time when T == top
    // otherwise it works but cannot optimize inline function call
    // return dynamic_cast&lt;base1 &amp;&gt;(t).is_storable();

-    // this always works - and is guarenteed to generate the fastest code !
+    // this always works - and is guaranteed to generate the fastest code !
    return (boost::smart_cast_reference&lt;base1 &amp;&gt;(t)).is_storable();
 }

@@ -121,27 +121,27 @@ The serialization library includes a mix of classes which use
 both static polymorphism (<strong>CRTP</strong>) and dynamic
 polymorphism via virtual functions.  <code style="white-space: normal">smart_cast</code> 
 was written to address the more problematic manifestations of the
-situation exmplified above.
+situation exemplified above.

 <h3>Usage</h3>
 The following syntax is supported:
 <pre><code>
 smart_cast&lt;Target *, Source *&gt;(Source * s);
-smart_cast&lt;Target *>(Source * s);
-smart_cast&lt;Target &, Source &amp;&gt(Source &amp; s);
+smart_cast&lt;Target *&gt;(Source * s);
+smart_cast&lt;Target &amp;, Source &amp;&gt;(Source &amp; s);
 </code></pre>
 Note that the above syntax doesn't include 
 <pre><code>
-smart_cast&lt;Target &amp; &gt(Source &amp; s)
+smart_cast&lt;Target &amp; &gt;(Source &amp; s)
 </code></pre>
-but the same functionality is supported the the following special syntax
+but the same functionality is supported with the following special syntax
 <pre><code>
-smart_cast_reference&lt;Target &amp;&gt(Source &amp; s)
+smart_cast_reference&lt;Target &amp;&gt;(Source &amp; s)
 </code></pre>

 <h3>Requirements</h3>
 <code style="white-space: normal">smart_cast</code> can be used only on compilers that support partial
-template specialization or on types for which have be specified with the
+template specialization or on types for which the
 macro <code style="white-space: normal">
 BOOST_BROKEN_COMPILER_TYPE_TRAITS_SPECIALIZATION(&lt;type&gt;)</code>
 has been applied.
@@ -1,4 +1,4 @@
-<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <!--
 (C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com . 
@@ -27,8 +27,8 @@ http://www.boost.org/LICENSE_1_0.txt)
 <hr>
 <dl class="page-index">
  <dt><a href="#objecttracking">Object Tracking</a>
-  <dt><a href="#export">Exporting Class Serialization</a>
  <dt><a href="#classinfo">Class Information</a>
+  <dt><a href="#helpersupport">Helper Support</a>
  <dt><a href="#portability">Archive Portability</a>
  <dl class="page-index">
    <dt><a href="#numerics">Numerics</a>
@@ -36,7 +36,10 @@ http://www.boost.org/LICENSE_1_0.txt)
  </dl>
  <dt><a href="#binary_archives">Binary Archives</a>
  <dt><a href="#xml_archives">XML Archives</a>
+  <dt><a href="#export">Exporting Class Serialization</a>
+  <dt><a href="#static_libraries">Static Libraries and Serialization</a>
  <dt><a href="#dlls">DLLS - Serialization and Runtime Linking</a>
+  <dt><a href="#plugins">Plugins</a>
  <dt><a href="#multi_threading">Multi-Threading</a>
  <dt><a href="#optimizations">Optimizations</a>
  <dt><a href="exceptions.html">Archive Exceptions</a>
@@ -51,10 +54,10 @@ can also be used to delete objects created during a loading process
 that has been interrupted by throwing of an exception.  
 <p>
 This could cause problems in 
-progams where the copies of different objects are saved from the same address.
+programs where the copies of different objects are saved from the same address.
 <pre><code>
 template&lt;class Archive&gt;
-void save(boost::basic_oarchive  &amp; ar, const unsigned int version) const
+void save(boost::basic_oarchive &amp; ar, const unsigned int version) const
 {
    for(int i = 0; i &lt; 10; ++i){
        A x = a[i];
@@ -94,11 +97,11 @@ and a likely source of very subtle bugs.
 Unfortunately, implementation issues currently prevent the detection of this kind of
 error when the data item is wrapped as a name-value pair.
 <p>
-A similar problem can occur when different objects are loaded to and address
+A similar problem can occur when different objects are loaded to an address
 which is different from the final location:
 <pre><code>
 template&lt;class Archive&gt;
-void load(boost::basic_oarchive  &amp; ar, const unsigned int version) const
+void load(boost::basic_oarchive &amp; ar, const unsigned int version) const
 {
    for(int i = 0; i &lt; 10; ++i){
        A x;
@@ -109,20 +112,20 @@ void load(boost::basic_oarchive  &amp; ar, const unsigned int version) const
 </code></pre>
 In this case, the address of <code>x</code> is the one that is tracked rather than
 the address of the new item added to the set.  Left unaddressed
-this will break the features that depend on tracking such as loading object through a pointer.
+this will break the features that depend on tracking such as loading an object through a pointer.
 Subtle bugs will be introduced into the program.  This can be
 addressed by altering the above code thusly:

 <pre><code>
 template&lt;class Archive&gt;
-void load(boost::basic_iarchive  &amp; ar, const unsigned int version) const
+void load(boost::basic_iarchive &amp; ar, const unsigned int version) const
 {
    for(int i = 0; i &lt; 10; ++i){
        A x;
        ar &gt;&gt; x;
        std::pair&lt;std::set::const_iterator, bool&gt; result;
        result = std::m_set.insert(x);
-        ar.reset_object_address(& (*result.first), &x);
+        ar.reset_object_address(&amp; (*result.first), &amp;x);
    }
 }
 </code></pre>
@@ -134,7 +137,7 @@ values are duplicated, overhead associated with object tracking can
 be eliminated by setting the object tracking class serialization trait
 appropriately.
 <p>
-By default, data types designated primitive by 
+By default, data types designated primitive by the
 <a target="detail" href="traits.html#level">Implementation Level</a>
 class serialization trait are never tracked. If it is desired to
 track a shared primitive object through a pointer (e.g. a
@@ -153,54 +156,95 @@ redundant save/load operations.
 BOOST_CLASS_TRACKING(my_virtual_base_class, boost::serialization::track_always)
 </code></pre>

-<h3><a name="export">Exporting Class Serialization</a></h3>
-<a target="detail" href="traits.html#export">Elsewhere</a> in this manual, we have described 
-<code style="white-space: normal">BOOST_CLASS_EXPORT</code>. This is used to make the serialization library aware
-that code should be instantiated for serialization of a given class even though the
-class hasn't been otherwise referred to by the program.  This functionality
-is necessary to implement serialization of pointers through a virtual base
-class pointer.  That is, a polymorphic pointer.
+<h3><a name="helpersupport">Helper Support</a></h3>
+Some types, specially those with complicated lifetime behavior or limited
+access to their internal state, might need or benefit from elaborate serialization
+algorithms.  The principle motivating case is that of shared_ptr.  As instances
+are loaded, they have to be "matched up" with any other instances which have
+already been loaded.  Thus, a table of previously loaded instances has to be
+maintained while the archive containing the shared_ptr instances is being loaded.
+Without maintaining such a table, the shared_ptr would be a serializable type.
 <p>
-This macro specifies a "<b>G</b>lobally <b>U</b>nique <b>ID</b>entifier".  
-This is an string which identifies the class to be created when data is loaded.
-Generally a text representation of the class name is sufficient for this purpose, 
-but in certain cases it maybe necessary to specify a different string by using 
-<code style="white-space: normal">BOOST_CLASS_EXPORT_GUID</code> 
-rather than a simple 
-<code style="white-space: normal">BOOST_CLASS_EXPORT</code>.
-
-<p>
-<code style="white-space: normal">BOOST_CLASS_EXPORT</code> would usually 
-be specified in the same header file as the class declaration to which it 
-corresponds.  That is, <code style="white-space: normal">BOOST_CLASS_EXPORT(T)</code>
-is a "trait" of the class T. So a program using this class will look 
-something like:
+To implement this facility, one declares a <i>helper object</i>
+associated to the current archive that can be used to store contextual
+information relevant to the particular type serialization algorithm.

 <pre><code>
-#include &lt;boost/archive/xml_oarchive.hpp&gt;
-.... // any other archive classes
-#include "my_class.hpp"  // which contains BOOST_CLASS_EXPORT(my_class)
-</code></pre>
+template&lt;class T&gt;
+class shared_ptr
+{
+   ...
+};

-These headers can be in any order.  (In boost versions 1.34
-and earlier, the archive headers had to go before any headers which
-contain <code style="white-space: normal">BOOST_CLASS_EXPORT</code>.)
-Any code required to serialize types specified
-by <code style="white-space: normal">BOOST_CLASS_EXPORT</code> will be
-instantiated for each archive whose header is included.  (note that the code 
-is instantiated regardless of whether or not it is actually invoked.) 
-If no archive headers are included - no code should be instantiated. 
-This will permit <code style="white-space: normal">BOOST_CLASS_EXPORT</code> 
-to be a permanent part of the <code style="white-space: normal">my_class.hpp</code> .
+BOOST_SERIALIZATION_SPLIT_FREE(shared_ptr)
+
+class shared_ptr_serialization_helper
+{
+  // table of previously loaded shared_ptr
+  // lookup a shared_ptr from the object address
+  shared_ptr&lt;T&gt; lookup(const T *);
+  // insert a new shared_ptr
+  void insert&lt;shared_ptr&lt;T&gt; &gt;(const shared_ptr&lt;T&gt; *);
+};
+
+namespace boost {
+namespace serialization {
+
+template&lt;class Archive&gt;
+void save(Archive &amp; ar, const shared_ptr &amp; x, const unsigned int /* version */)
+{
+    // save shared ptr
+    ...
+}
+
+template&lt;class Archive&gt;
+void load(Archive &amp; ar, shared_ptr &amp; x, const unsigned int /* version */)
+{
+    // get a unique identifier.  Using a constant means that all shared pointers
+    // are held in the same set.  Thus we detect handle multiple pointers to the
+    // same value instances in the archive.
+    const void * shared_ptr_helper_id = 0;
+
+    shared_ptr_serialization_helper &amp; hlp =
+        ar.template get_helper&lt;shared_ptr_serialization_helper&gt;(helper_instance_id);
+
+    // load shared pointer object
+    ...
+
+    shared_ptr_serialization_helper &amp; hlp =
+        ar.template get_helper&lt;shared_ptr_serialization_helper&gt;(shared_ptr_helper_id);
+
+    // look up object in helper object
+    T * shared_object hlp.lookup(...);
+
+    // if found, return the one from the table
+
+    // load the shared_ptr data
+    shared_ptr&lt;T&gt; sp = ...
+
+    // and add it to the table
+    hlp.insert(sp);
+    // implement shared_ptr_serialization_helper load algorithm with the aid of hlp
+}
+
+} // namespace serialization
+} // namespace boost
+</code></pre>
+<code style="white-space: normal">get_helper&lt;shared_ptr_serialization_helper&gt;();</code>
+creates a helper object associated to the archive the first time it is invoked;
+subsequent invocations return a reference to the object created in the first
+place, so that <code style="white-space: normal">hlp</code> can effectively be
+used to store contextual information persisting through the serialization
+of different <code style="white-space: normal">complex_type</code> objects on
+the same archive.

 <p>
-Note that the implementation of this functionality depends upon vendor
-specific extensions to the C++ language.  So, there is no guarenteed portability
-of programs which use this facility.  However, all C++ compilers which
-are tested with boost provide the required extensions.  The library
-includes the extra declarations required by each of these compilers.
-It's reasonable to expect that future C++ compilers will support
-these extensions or something equivalent.
+Helpers may be created for saving and loading archives.
+The same program might have several different helpers or the same helper instantiated
+separately from different parts of the program.  This is what makes the helper_instance_id
+necessary.  In principle it could be any unique integer. In practice it seems
+easiest to use the address of the serialization function which contains it. The
+above example uses this technique.

 <h3><a name="classinfo">Class Information</a></h3>
 By default, for each class serialized, class information is written to the archive.
@@ -223,7 +267,7 @@ in this manner comes at a cost.  Once archives are released to users, the
 class serialization traits cannot be changed without invalidating the old
 archives.  Including the class information in the archive assures us
 that they will be readable in the future even if the class definition
-is revised.  A light weight structure such as display pixel might be
+is revised.  A light weight structure such as a display pixel might be
 declared in a header like this:

 <pre><code>
@@ -251,14 +295,14 @@ BOOST_CLASS_TRACKING(pixel, boost::serialization::track_never)
 </code></pre>

 <h3><a name="portability">Archive Portability</a></h3>
-Several archive classes create their data in the form of text or portable a binary format.  
-It should be possible to save such an of such a class on one platform and load it on another.  
+Several archive classes create their data in the form of text or a portable binary format.  
+It should be possible to save such a class on one platform and load it on another.  
 This is subject to a couple of conditions.
 <h4><a name="numerics">Numerics</a></h4>
 The architecture of the machine reading the archive must be able hold the data
 saved.  For example, the gcc compiler reserves 4 bytes to store a variable of type
 <code style="white-space: normal">wchar_t</code> while other compilers reserve only 2 bytes.  
-So its possible that   a value could be written that couldn't be represented by the loading program.  This is a
+So it's possible that   a value could be written that couldn't be represented by the loading program.  This is a
 fairly obvious situation and easily handled by using the numeric types in
 <a target="cstding" href="../../../boost/cstdint.hpp">&lt;boost/cstdint.hpp&gt;</a>
 <P>
@@ -278,7 +322,7 @@ Another potential problem is illustrated by the following example:
 template&lt;class T&gt;
 struct my_wrapper {
    template&lt;class Archive&gt;
-    Archive & serialize ...
+    Archive &amp; serialize ...
 };

 ...
@@ -286,10 +330,10 @@ struct my_wrapper {
 class my_class {
    wchar_t a;
    short unsigned b;
-    template<&lt;class Archive&gt;
-    Archive & serialize(Archive & ar, unsigned int version){
-        ar & my_wrapper(a);
-        ar & my_wrapper(b);
+    template&lt;class Archive&gt;
+    Archive &amp; serialize(Archive &amp; ar, unsigned int version){
+        ar &amp; my_wrapper(a);
+        ar &amp; my_wrapper(b);
    }
 };
 </code></pre>
@@ -335,7 +379,7 @@ XML format has a nested structure that maps well to the "recursive class member
 used by the serialization system. However, XML differs from other formats in that it 
 requires a name for each data member. Our goal is to add this information to the 
 class serialization specification while still permiting the the serialization code to be 
-used with any archive. This is achived by requiring that all data serialized to an XML archive
+used with any archive. This is archived by requiring that all data serialized to an XML archive
 be serialized as a <a target="detail" href="wrappers.html#nvp">name-value pair</a>.
 The first member is the name to be used as the XML tag for the
 data item while the second is a reference to the data item itself. Any attempt to serialize data
@@ -343,15 +387,116 @@ not wrapped in a in a <a target="detail" href="wrappers.html#nvp">name-value pai
 be trapped at compile time. The system is implemented in such a way that for other archive classes,
 just the value portion of the data is serialized. The name portion is discarded during compilation.
 So by always using <a target="detail" href="wrappers.html#nvp">name-value pairs</a>, it will
-be guarenteed that all data can be serialized to all archive classes with maximum efficiency.
+be guaranteed that all data can be serialized to all archive classes with maximum efficiency.

-<h3><a name="dlls">DLLS - Serialization and Runtime Linking</a></h3>
-Serialization code can be placed in libraries to be linked at runtime.  That is,
-code can be placed in DLLS(Windows) or Shared Libraries(*nix).  
-Along with the "export" facility, this
-permits a program to written without knowledge of the actual types to be serialized.
-This package doesn't include an example of this technique - but coding would be
-very similar to the example 
+<h3><a name="export">Exporting Class Serialization</a></h3>
+<a target="detail" href="traits.html#export">Elsewhere</a> in this manual, we have described 
+<code style="white-space: normal">BOOST_CLASS_EXPORT</code>. 
+Export implies two things:
+<ul>
+<li>Instantiates code which is not otherwise referred to.
+<li>Associates an external identifier with the class to be serialized.
+The fact that the class isn't explicitly referred to implies this
+requirement.
+</ul>
+In C++, usage of code not explicitly referred to is implemented via
+virtual functions.  Hence, the need for export is implied by the 
+usage of a derived class that is manipulated via a pointer or
+reference to its base class.
+
+<p>
+<code style="white-space: normal">BOOST_CLASS_EXPORT</code> in the same
+source module that includes any of the archive class headers will
+instantiate code required to serialize polymorphic pointers of
+the indicated type to the all those archive classes. If no
+archive class headers are included, then no code will be instantiated.
+
+<p>
+Note that the implemenation of this functionality requires
+that the <code style="white-space: normal">BOOST_CLASS_EXPORT</code>
+macro appear <b>after</b> the inclusion of any archive
+class headers for which code is to be instantiated.
+So, code that uses <code style="white-space: normal">BOOST_CLASS_EXPORT</code>
+will look like the following:
+<pre><code>
+#include &lt;boost/archive/text_oarchive.hpp&gt;
+#include &lt;boost/archive/text_oarchive.hpp&gt;
+... // other archives
+
+#include "a.hpp" // header declaration for class a
+BOOST_CLASS_EXPORT(a)
+... // other class headers and exports
+</code></pre>
+This will be true regardless of whether the code is part
+of a stand alone executable, a static library or
+a dynamic or shared library.  
+<p>
+Including
+<code style="white-space: normal">BOOST_CLASS_EXPORT</code>
+in the "a.hpp" header itself as one would do with
+other serialization traits will make it difficult
+or impossible to follow the rule above regarding
+inclusion of archive headers before
+<code style="white-space: normal">BOOST_CLASS_EXPORT</code>
+is invoked. This can best be addressed by using
+<code style="white-space: normal">BOOST_CLASS_EXPORT_KEY</code>
+in the header declarations and
+<code style="white-space: normal">BOOST_CLASS_EXPORT_IMPLEMENT</code>
+in the class definition file.
+
+<p>
+This system has certain implications for placing code in static or shared
+libraries.  Placing <code style="white-space: normal">BOOST_CLASS_EXPORT</code>
+in library code will have no effect unless archive class headers are
+also included.  So when building a library, one should include all headers
+for all the archive classes which he anticipates using. Alternatively,
+one can include headers for just the
+<a href="archive_reference.html#polymorphic">Polymorphic Archives</a>.
+
+<p>
+Strictly speaking, export should not be necessary if all pointer serialization
+occurs through the most derived class.  However, in order to detect
+what would be a catastrophic error, the library traps ALL serializations through
+a pointer to a polymorphic class which are not exported or otherwise registered.
+So, in practice, be prepared to register or export all classes with one
+or more virtual functions which are serialized through a pointer. 
+
+<p>
+Note that the implementation of this functionality depends upon vendor
+specific extensions to the C++ language.  So, there is no guaranteed portability
+of programs which use this facility.  However, all C++ compilers which
+are tested with boost provide the required extensions.  The library
+includes the extra declarations required by each of these compilers.
+It's reasonable to expect that future C++ compilers will support
+these extensions or something equivalent.
+
+<h3><a name="static_libraries">Static Libraries and Serialization</a></h3>
+Code for serialization of data types can be saved in libraries
+just as it can for the rest of the type implementation.
+This works well, and can save a huge amount of compilation time.
+<ul>
+<li>Only compile serialization definitions in the library.
+<li>Explicitly instantiate serialization code for ALL
+archive classes you intend to use in the library.
+<li>For exported types, only use <code style="white-space: normal">BOOST_CLASS_EXPORT_KEY</code>
+in headers.
+<li>For exported types, only use <code style="white-space: normal">BOOST_CLASS_EXPORT_IMPLEMENT</code>
+in definitions compiled in the library.  For any particular type,
+there should be only one file which contains
+<code style="white-space: normal">BOOST_CLASS_EXPORT_IMPLEMENT</code>
+for that type.  This ensures that only one copy
+of serialization code will exist within the program.  It avoids
+wasted space and the possibility of having different
+versions of the serialization code in the same program.
+Including
+<code style="white-space: normal">BOOST_CLASS_EXPORT_IMPLEMENT</code>
+in multiple files could result in a failure
+to link due to duplicated symbols or the throwing
+of a runtime exception.
+<li> Code for serialization should be only in the library,
+<li>Familiarize yourself with the <b>PIMPL</b> idiom.
+</ul>
+This is illustrated by
 <a href = "../example/demo_pimpl.cpp" target="demo_pimpl">
 <code style="white-space: normal">demo_pimpl.cpp</code>
 </a>,
@@ -362,52 +507,150 @@ and
 <a href = "../example/demo_pimpl_A.hpp" target="demo_pimpl">
 <code style="white-space: normal">demo_pimpl_A.hpp</code>
 </a>
-where implementation of serializaton is completely separate
-from the main program.
+where implementation of serialization is in a static library 
+completely separate from the main program.
+
+<h3><a name="dlls">DLLS - Serialization and Runtime Linking</a></h3>
+Serialization code can be placed in libraries to be linked at runtime.  That is,
+code can be placed in DLLS(Windows) Shared Libraries(*nix), or static libraries
+as well as the main executable.  The best technique is the
+same as that described above for libraries.  The serialization
+library test suite includes the following programs
+to illustrate how this works:
+<p>
+
+<a href = "../test/test_dll_simple.cpp" target="test_dll_simple">
+<code style="white-space: normal">test_dll_simple</code>
+</a>,
+and
+<a href = "../test/dll_a.cpp" target="dll_a">
+<code style="white-space: normal">dll_a.cpp</code>
+</a>
+where implementation of serialization is also completely separate
+from the main program but the code is loaded at runtime.  In this
+example, this code is loaded automatically when the program which
+uses it starts up, but it could just as well be loaded and unloaded 
+with an OS dependent API call.
+<p>
+Also included are
+<a href = "../test/test_dll_exported.cpp" target="test_dll_exported">
+<code style="white-space: normal">test_dll_exported.cpp</code>
+</a>,
+and
+<a href = "../test/polymorphic_derived2.cpp" target="polymorphic_derived2">
+<code style="white-space: normal">polymorphic_derived2.cpp</code>
+</a>
+which are similar to the above but include tests of the export
+and no_rtti facilities in the context of DLLS.
+<p>
+For best results, write your code to conform to the following
+guidelines:
+<ul>
+  <li>Don't include <code>inline</code> code in classes used in DLLS.
+This will generate duplicate code in the DLLS and mainline. This
+needlessly duplicates code.  Worse, it makes is possible for 
+different versions of the same code to exist simultaneously.  This
+type of error turns out to be excruciatingly difficult to debug.
+Finally, it opens the possibility that a module being referred to
+might be explicitly unloaded which would (hopefully) result in
+a runtime error. This is another bug that is not always 
+reproducible or easy to find. For class member templates use something like
+
+<pre><code>
+template&lt;class Archive&gt;
+void serialize(Archive &amp; ar, const unsigned int version);
+</code></pre>
+in the header, and
+
+<pre><code>
+template&lt;class Archive&gt;
+void myclass::serialize(Archive &amp; ar, const unsigned int version){
+	...
+}
+
+BOOST_CLASS_EXPORT_IMPLEMENT(my_class)
+
+#include &lt;boost/archive/text_oarchive&gt;
+#include &lt;boost/archive/text_iarchive&gt;
+template myclass::serialize(boost::archive::text_oarchive &amp; ar, const unsigned int version);
+template myclass::serialize(boost::archive::text_iarchive &amp; ar, const unsigned int version);
+... // repeat for each archive class to be used.
+</code></pre>
+in the implementation file.  This will result in generation of all code
+required in only one place.  The library does not detect this type of error for you.
+  <li>If DLLS are to be loaded and unloaded explicitly (e.g. using <code>dlopen</code> in *nix or 
+<code>LoadLibrary</code> in Windows).  Try to arrange that they are unloaded in the reverse
+sequence.  This should guarantee that problems are avoided even if the
+above guideline hasn't been followed.
+
+</ul>
+
+<h3><a name="plugins">Plugins</a></h3>
+In order to implement the library, various facilities for runtime
+manipulation of types at runtime were required.  These
+are <a target="detail" href="extended_type_info.html"><code>extended_type_info</code></a>
+for associating classes with external identifying strings (<b>GUID</b>)
+and <a target="detail" href="void_cast.html"><code>void_cast</code></a>
+for casting between pointers of related types.
+
+To complete the functionality of 
+<a target="detail" href="extended_type_info.html"><code>extended_type_info</code></a>
+the ability to construct and destroy corresponding types has been
+added.  In order to use this functionality, one must specify
+how each type is created.  This should be done at the time
+a class is exported.  So, a more complete example of the code above would be:
+
+<pre><code>
+#include &lt;boost/archive/text_oarchive.hpp&gt;
+#include &lt;boost/archive/text_oarchive.hpp&gt;
+... // other archives
+
+#include "a.hpp" // header declaration for class a
+
+// this class has a default constructor
+BOOST_SERIALIZATION_FACTORY_0(a)
+// as well as one that takes one integer argument
+BOOST_SERIALIZATION_FACTORY_1(a, int)
+
+// specify the GUID for this class
+BOOST_CLASS_EXPORT(a)
+... // other class headers and exports
+</code></pre>
+
+With this in place, one can construct, serialize and destroy a class
+about which is known only the <b>GUID</b> and a base class.
+

 <h3><a name="multi_threading">Multi-Threading</a></h3>
-The nature of serialization would conflict with multiple thread concurrently
-writing/reading from/to a single open archive.  Since each archive is
-independent from ever other one, there should be no problem
-in having multiple open archives from one or more threads.
+The fundamental purpose of serialization would conflict with multiple 
+threads concurrently writing/reading from/to a single open archive instance.
+The library implementation presumes that the application avoids such a situation.
 <p>
-Well, not quite.
+However, Writing/Reading different archives simultaneously
+in different tasks is permitted as each archive instance is (almost) 
+completely independent from any other archive instance.  The only shared 
+information is some type tables which have been implemented using a 
+lock-free thread-safe 
+<a target="detail" href="singleton.html">
+<code style="white-space: normal">singleton</code>
+</a>
+described elsewhere in this documentation.
 <p>
-There are a couple of global data structures for holding
-information of serializable types.  These structures are
-used to dispatch to correct code to handle each pair
-of serializable types and archive types.  Since this
-information is shared among all archives, there is 
-potential for problems.  This has been addressed
-carefully implementing the library so that these 
-structures are all initialized before 
-<code style="white-space: normal">main(...)</code>
-is called.  From then on they are never altered.  So
-there SHOULD be no problem having mulitple archives
-open simultaneously - be it from the same or different
-threads.
-<p>
-Well, almost.
-<p>
-With dynamically loaded code - DLLS or Shared Libraries, 
-these global data structures can be altered when a library
-is loaded or unloaded.  That is, in this case, these
-globa data structures can be altered after 
-<code style="white-space: normal">main(...)</code>
-is called.  So if a thread is dynamically loading/unloading
-modules which contain serialization code while an 
-archive is open there could be problems.  Also, if
-such loading/unloading is happening concurrently
-in different threads, there could also be problems.
-<p>
-It might not be easy to control this.  Is possible that
-some systems may not actually load modules until they
-are actually needed.  So even though we think that
-there is not dynamic loading/unloading of such code
-it could be occurring as "help" to manage resources.
-On such systems, access to archive code would have 
-to be syncronized with some multi-threading construct
-in order to be functional.
+This singleton implementation guarantees that all of this shared
+information is initialized when the code module which contains
+it is loaded.  The serialization library takes care to
+ensure that these data structures are not subsequently
+modified. The only time there could be a problem would
+be if code is loaded/unloaded while another task is
+serializing data.  This could only occur for types whose 
+serialization is implemented in a dynamically loaded/unloaded DLL
+or shared library.  So if the following is avoided:
+<ul>
+    <li>Accessing the same archive instance from different tasks.
+    <li>Loading/Unloading DLLS or shared libraries while any archive
+    instances are open.
+</ul>
+The library should be thread safe.

 <h3><a name="optimizations">Optimizations</a></h3>
 In performance critical applications that serialize large sets of contiguous data of homogeneous
@@ -32,7 +32,7 @@ and resets the object's state at destruction time, undoing any change the object
 may have gone through.  Here is the interface:

 <pre><code>
-template<class T>
+template&lt;class T&gt;
 // T requirements:
 //  - POD or object semantic (cannot be reference, function, ...)
 //  - copy constructor
@@ -43,20 +43,20 @@ private:
    ... // implementation

 public:
-    state_saver(T & object);
+    state_saver(T &amp; object);
    ~state_saver();
 };
 </code></pre>

 The complete implementation can be found
-<a target="state_saver" href="../../../boost/state_saver.hpp">here</a>
+<a target="state_saver" href="../../../boost/serialization/state_saver.hpp">here</a>

 The following illustrates how this is expected to be used.

 <pre><code>
 #include &lt;boost/state_saver.hpp&gt;

-void func(A & a)
+void func(A &amp; a)
    boost::state_saver&lt;A&gt; s(a);
    ... // alter state of a by calling non-const functions
    ... // call other functions
@@ -25,7 +25,25 @@ http://www.boost.org/LICENSE_1_0.txt)
  </tr>
 </table>
 <hr>
-To do.
+
+The header <code>&lt;boost/serialization/static_warning.hpp&gt;</code> supplies a single macro 
+<code style="white-space: normal">BOOST_STATIC_WARNING(x)</code>, which generates a compile time warning message if 
+the integral-constant-expression x is not true. 
+<p>
+Note that if the condition is true, then the macro will generate neither 
+code nor data - and the macro can also be used at either namespace, 
+class or function scope. When used in a template, the expression x 
+will be evaluated at the time the template is instantiated; this is 
+particularly useful for validating template parameters. 
+<p>
+It is intended that the functioning of <code style="white-space: normal">BOOST_STATIC_WARNING(x)</code>
+be identical to that of <code style="white-space: normal">BOOST_STATIC_ASSERT(x)</code>
+except that rather than resulting in a compilation error, it will result in
+a compiler warning.  In all other respects it should be the same.  So
+for more information on using <code style="white-space: normal">BOOST_STATIC_WARNING(x)</code>
+consult the documentation for <code style="white-space: normal">BOOST_STATIC_ASSERT(x)</code>
+<a href="../../../doc/html/boost_staticassert.html">here</a>.
+
 <hr>
 <p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2002-2004. 
 Distributed under the Boost Software License, Version 1.0. (See
@@ -1,4 +1,4 @@
-<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <!--
 (C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com . 
@@ -48,7 +48,7 @@ Usage of BOOST_STRONG_TYPEDEF
 addresses this.
 <pre></code>
 <a target="strong_typedef" href="../../../boost/strong_typedef.hpp">
-#include &lt;boost/strong_typedef.hpp&gt;
+#include &lt;boost/serialization/strong_typedef.hpp&gt;
 </a>

 BOOST_STRONG_TYPEDEF(int, a)
@@ -78,7 +78,7 @@ type but still of distinct type.

 <h3>Implemenation</h3>
 <code style="white-space: normal">BOOST_STRONG_TYPEDEF</code> is a macro
-which generates a class named "name" wraps and instance of its
+which generates a class named "name" which wraps an instance of its
 primitive type and provides appropriate conversion operators in order
 to make the new type substitutable for the one that it wraps.

@@ -6,3 +6,10 @@ pre{
  MARGIN-LEFT: 0pt;
  background-color: #EEEEEE;
 }
+
+/*
+(C) Copyright 2008 Robert Ramey - http://www.rrsd.com . 
+Use, modification and distribution is subject to the Boost Software
+License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+*/
@@ -0,0 +1,112 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<!--
+(C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com . 
+Use, modification and distribution is subject to the Boost Software
+License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+-->
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<link rel="stylesheet" type="text/css" href="../../../boost.css">
+<link rel="stylesheet" type="text/css" href="style.css">
+<title>Serialization - To Do</title>
+</head>
+<body link="#0000ff" vlink="#800080">
+<table border="0" cellpadding="7" cellspacing="0" width="100%" summary="header">
+  <tr> 
+    <td valign="top" width="300"> 
+      <h3><a href="../../../index.htm"><img height="86" width="277" alt="C++ Boost" src="../../../boost.png" border="0"></a></h3>
+    </td>
+    <td valign="top"> 
+      <h1 align="center">Serialization</h1>
+      <h2 align="center">To Do</h2>
+    </td>
+  </tr>
+</table>
+<hr>
+<dl class="index">
+  <dt><a href="#portablebinaryarchives">Portable Binary Archives</a></dt>
+  <dt><a href="#performancetesting">Performance Testing and Profiling</a></dt>
+  <dt><a href="#backversioning">Back Versioning</a></dt>
+  <dt><a href="#nortti">Testing for Environments with No RTTI</a></dt>
+  <dt><a href="new_case_studies.html">Additional Case Studies</a></dt>
+</dl>
+
+These are enhancements that the serialization library needs but have not been done.
+Some of these projects, though tricky, are not huge and would be suitable
+for someone who has a limited time to spend on them.  In particular, they
+might be of interest as student projects such as the Google Summer of Code.
+
+<h2><a name="portablebinaryarchives"></a>Portable Binary Archives</h2>
+Currently there is a portable binary archive in the examples directory.
+It is not regularly submitted to the exhaustive boost testing regimen
+but it is tested occasionally and has been used in production code.
+<p>
+It's missing the following:
+<ul>
+  <li>Addition of portable floating point types.  This is not trivial.  In addition to
+  handling floating point types of varying sizes, It requires
+  handling invalid floating point numbers (NaNs) in a portable manner.
+  <li>Integration into the Boost testing regimen similar to the other archive classes.
+</ul>
+
+<h2><a name="performancetesting"></a>Performance Testing and Profiling</h2>
+
+I've managed to setup performance profiling using the following:
+<ul>
+  <li>current (as I write this) Boost.Build tools.
+  <li>the gcc compiler.
+  <li>and a shell script - profile.sh
+  <li>library_status program from the tools/regression/src directory
+</ul>
+Invoking profile script produces a 
+<a href="performance_status.html">table</a>
+which shows the results of each test and links to the actual
+profile.
+<p>
+The first thing I did was include some of the serialization library tests.
+It became immediately apparent that these tests were totally unsuitable
+for performance testing and that new tests needed to be written for this 
+purpose.  These tests would highlight the location of any performance
+bottlenecks in the serialization library.  Whenever I've subjected my
+code in the past to this type of analysis, I've always been surprised
+to find bottlenecks in totally unanticipated places and fixing those
+has always led to large improvements in performance.  I expect that
+this project would have a huge impact on the utility of the serialization
+library.
+
+<h2><a name="backversioning"></a>Back Versioning</h2>
+
+It has been suggested that a useful feature of the library would be
+the ability to create "older versions" of archives.  Currently,
+the library permits one to make programs that are guaranteed
+the ability to load archives with classes of a previous version. 
+But there is no way to save classes in accordance with a
+previous version.  At first I dismissed this as a huge project
+with small demand.  A cursory examination of the code revealed
+that this would not be very difficult.  It would require some
+small changes in code and some additional tests.  Also it
+would require special treatment in the documentation - perhaps
+a case study.
+
+
+<h2><a name="nortti"></a>Environments without RTTI</h2>
+
+I note that some have commented that this library requires RTTI.
+This is not strictly true.  The examples and almost all the
+tests presume the existence of RTTI.  But it should be possible
+to use the library without it.  The example used for testing is an 
+<code style="white-space: normal">extended_typeinfo</code> 
+implemenation which presumes that all classes names have been exported. 
+So, to make this library compatible for platforms without RTTI, 
+a set of tests, examples and new manual section would have to be created.
+
+<hr>
+<p>Revised 1 November, 2008 
+<p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2002-2008. 
+Distributed under the Boost Software License, Version 1.0. (See
+accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+</i></p>
+</body>
+</html>
@@ -1,4 +1,4 @@
-<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<!doctype HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <!--
 (C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com . 
@@ -33,10 +33,12 @@ http://www.boost.org/LICENSE_1_0.txt)
  <dt><a href="#abstract">Abstract</a>
  <dt><a href="#typeinfo">Type Information Implementation</a>
  <dt><a href="#wrappers">Wrappers</a>
+  <dt><a href="#bitwise">Bitwise Serialization</a>
  <dt><a href="#templates">Template Serialization Traits</a>
+  <dt><a href="#compiletime_messages">Compile Time Warnings and Errors</a>
 </dl>
 Serialization of data depends on the type of the data.  For example, for
-primitive types such as an <code style="white-space: normal">int</code>, it wouldn't make sense to save
+primitive types such as <code style="white-space: normal">int</code>, it wouldn't make sense to save
 a version number in the archive. Likewise, for a data type that is never
 serialized through a pointer, it would (almost) never make sense to track
 the address of objects saved to/loaded from the archive as it will never
@@ -46,7 +48,7 @@ type, the way it is used and specifications of the programmer.
 <p>
 One can alter the manner in which a particular data type is serialized
 by specifying one or more <strong>class serialization traits</strong>.
-It is not generally necessary for the programmer to explictly assign
+It is not generally necessary for the programmer to explicitly assign
 traits to his classes as there are default values for all traits.
 If the default values are not appropriate they can be assigned by the programmer.
 A template is used to associate a typename with a constant.  For example
@@ -179,7 +181,7 @@ Default tracking traits are:
  That is, addresses of addresses are not tracked by default.
  <li>All current serialization wrappers such as <code style="white-space: normal">boost::serialization::nvp</code>,
  <code style="white-space: normal">track_never</code>.
-  <li>For all other types, <code style="white-space: normal">track_selectivly</code>.
+  <li>For all other types, <code style="white-space: normal">track_selectively</code>.
  That is addresses of serialized objects are tracked if and only if
  one or more of the following is true:
  <ul>
@@ -194,7 +196,7 @@ Default tracking traits are:
 The default behavior is almost always the most convenient one.  However,
 there a few cases where it would be desirable to override the
 default.  One case is that of a virtual base class. In a diamond
-heritance structure with a virtual base class, object tracking
+inheritance structure with a virtual base class, object tracking
 will prevent redundant save/load invocations.  So here is one
 case where it might be convenient to override the default tracking
 trait. <i>(Note: in a future version the default will be reimplemented
@@ -202,16 +204,26 @@ to automatically track classes used as virtual bases).</i> This
 situation is demonstrated by 
 <a href="../test/test_diamond.cpp" target="test_diamond_cpp">test_diamond.cpp</a>
 included with the library.
+
 <h3><a name="export">Export Key</a></h3>
-When serializing a derived class through a base class pointer, it
-may be convenient to define an external name by which the
-derived class can be identified.  
-<i>(<a target="detail" href="special.html#derivedpointers">Elsewhere</a>
-in this manual, the
-serialization of derived classes is addressed in detail.)</i>
+
+When serializing a derived class through a virtual base class pointer,
+two issues may arise.
+<ul>
+<li> The code in the derived class might never be explicitly
+referred to.  Such code will never be instantiated.
+<p>
+This is addressed by invoking 
+<code style="white-space: normal">BOOST_CLASS_EXPORT_IMPLEMENT(T)</code>
+in the file which defines (implements) the class T.
+This ensures that code for the derived class T will
+be explicitly instantiated.
+<li> There needs to be some sort of identifier which can
+be used to select the code to be invoked when the object
+is loaded.
 Standard C++ does implement <code style="white-space: normal">typeid()</code> which can be
 used to return a unique string for the class.  This is not entirely
-statisfactory for our purposes for the following reasons:
+satisfactory for our purposes for the following reasons:
 <ul>
  <li>There is no guarantee that the string is the same across platforms.
  This would then fail to support portable archives.
@@ -220,45 +232,52 @@ statisfactory for our purposes for the following reasons:
  <li>There might be classes locally defined in different code modules
  that have the same name. 
  <li>There might be classes with different names that we want to
-  consider equivalent for purposes of of serialization.
+  consider equivalent for purposes of serialization.
 </ul>
-So the header file
-<a href="../../../boost/serialization/export.hpp" target="export_hpp">export.hpp</a>
-includes macro definitions to specify the external string used
-to identify the class. 
-<i>(<b>GUID</b> stands for <b>G</b>lobally <b>U</b>nique <b>ID</b>entfier.)</i>
-<pre><code>
-BOOST_CLASS_EXPORT_GUID(my_class, "my_class_external_identifier")
-</code></pre>
+<p>
+So in the serialization library, this is addressed by invoking
+<code style="white-space: normal">BOOST_CLASS_EXPORT_KEY2(my_class, "my_class_external_identifier")</code>
+in the header file which declares the class.
 In a large majority of applications, the class name works just fine
 for the external identifier string so the following short cut is
-defined
-<pre><code>
-BOOST_CLASS_EXPORT(my_class)
-</code></pre>
-which expands to:
-<pre><code>
-BOOST_CLASS_EXPORT_GUID(my_class, "my_class")
-</code></pre>
-If the an external name is required somewhere in the program and none
-has been assigned, a static assertion will be invoked.
-<h3><a name="abstract">Abstract</a></h3>
-When serializing an object through a pointer to its base class
-and that base class is abstract (i.e. has at least one virtual function
-assigned a value of 0), A compile error will be emitted.  This is
-addressable in one over several ways:
-<ul>
-  <li>remove the =0 in the base classes so that the base class is no
-  longer abstract.
-  <li>implement is_abstract for your compiler. (code written according to
-  the C++ standard is included with this library.  But it is known to fail
-  on several compilers.
-  <li>use the macro <code style="white-space: normal">BOOST_IS_ABSTRACT(my_class)</code> to indicate
-  that the class is an abstract base class.  This will cause the compiler
-  to avoid generating code that causes this error.
-  This macro must be used in the global namespace, with full namespace 
-  qualification of the argument class. 
+defined -
+<code style="white-space: normal">BOOST_CLASS_EXPORT_KEY(my_class)</code>.
 </ul>
+For programs which consist of only one module - that is 
+programs which do not use DLLS, one can specify
+<code style="white-space: normal">BOOST_CLASS_EXPORT(my_class)</code>
+or
+<code style="white-space: normal">BOOST_CLASS_EXPORT_GUID(my_class, "my_class_external_identifier")</code>
+in either the declaration header or definition.  These macros
+expand to invocation of both of the macros described above.
+<i>(<b>GUID</b> stands for <b>G</b>lobally <b>U</b>nique <b>ID</b>entifier.)</i>
+<p>
+<i>(<a target="detail" href="special.html#export">Elsewhere</a>
+in this manual, the serialization of derived classes is addressed in detail.)</i>
+<p>
+The header file
+<a href="../../../boost/serialization/export.hpp" target="export_hpp">export.hpp</a>
+contains all macro definitions described here.
+The library will throw a runtime exception if
+<ul>
+<li> A type not explicitly referred to is not exported.
+<li> Serialization code for the same type is instantiated
+in more than one module (or DLL).
+</ul>
+
+<h3><a name="abstract">Abstract</a></h3>
+When serializing an object through a pointer to its base class,
+the library needs to determine whether or not the base is abstract
+(i.e. has at least one virtual function).  The library uses the
+type trait macro <code style="white-space: normal">BOOST_IS_ABSTRACT(T)</code>
+to do this.  Not all compilers support this type trait and corresponding
+macro.  To address this, the macro <code style="white-space: normal">
+BOOST_SERIALIZATION_ASSUME_ABSTRACT(T)</code> has been
+implemented to permit one to explicitly indicate that a specified
+type is in fact abstract.  This will guarentee that
+<code style="white-space: normal">BOOST_IS_ABSTRACT</code>
+will return the correct value for all compilers.
+
 <h3><a name="typeinfo">Type Information Implementation</a></h3>
 This last trait is also related to the serialization of objects
 through a base class pointer.  The implementation of this facility
@@ -314,10 +333,9 @@ This is illustrated by the test program
 Other implementations are possible and might be necessary for
 certain special cases.

-version.hpp</a>.  
 <h3><a name="wrappers">Wrappers</a></h3>
-Archives need to treat wrappers diffently from other types since, for example,
-they usually are non-const object while output archives require that any
+Archives need to treat wrappers differently from other types since, for example,
+they usually are non-const objects while output archives require that any
 serialized object (with the exception of a wrapper) be const. 

 This header file <a href="../../../boost/serialization/wrapper.hpp">wrapper.hpp</a>
@@ -356,7 +374,30 @@ BOOST_CLASS_IS_WRAPPER(my_class)
 </code></pre>
 which expands to the code above.

+<h3><a name="bitwise">Bitwise Serialization</a></h3>
+Some simple classes could be serialized just by directly copying all bits
+of the class. This is, in particular, the case for POD data types containing
+no pointer members, and which are neither versioned nor tracked. Some archives, 
+such as non-portable binary archives can make us of this information to 
+substantially speed up serialization.

+To indicate the possibility of bitwise serialization the type trait defined 
+in the header
+file <a href="../../../boost/serialization/is_bitwise_serializable.hpp" target="is_bitwise_serializable">is_bitwise_serializable.hpp</a>
+is used:
+<pre><code>
+namespace boost { namespace serialization {
+    template&lt;class T&gt;
+    struct is_bitwise_serializable
+     : public is_arithmetic&lt;T&gt;
+    {};
+} }
+</code></pre>
+is used, and can be specialized for other classes. The specialization
+is made easy by the corresponding macro:
+<pre><code>
+BOOST_IS_BITWISE_SERIALIZABLE(my_class)
+</code></pre>

 <h3><a name="templates">Template Serialization Traits</a></h3>
 In some instances it might be convenient to assign serialization traits
@@ -429,7 +470,7 @@ struct tracking_level&lt;nvp&lt;T&gt; &gt;
 #endif
 </code></pre>
 This can be problematic when one wants to make his code <strong>and archives</strong>
-portable to other platforms.  It means the she objects will be serialized differently
+portable to other platforms.  It means the objects will be serialized differently
 depending on the platform used.  This implies that objects saved from one platform
 won't be loaded properly on another.  In other words, archives won't be portable.
 <p>
@@ -471,6 +512,291 @@ and template parameters should be assigned according to the following table:
 <tr><td><code>IsWrapper</code></td><td><code></code>is the type a wrapper?</td><td><code>mpl::false_<br>mpl::true_</code></td><td><code>mpl::false_</code></td></tr>
 </table>

+<h3><a name="compiletime_messages">Compile Time Warnings and Errors</a></h3>
+Some serialization traits can conflict with other ones.  Sometimes these conflicts
+will result in erroneous behavior (E.G. creating of archives which could not be read)
+and other times they represent a probable misconception on the part of the
+library user which could result in surprising behavior.  To the extent possible,
+these conflicts are detected at compile time and errors (BOOST_STATIC_ASSERT) 
+or warnings (BOOST_STATIC_WARNING) are generated. They are generated in a
+compiler dependent manner which should show a chain of instantiation
+to the point where the error/warning is detected.  Without this capability,
+it would be very hard to track down errors or unexpected behavior in library
+usage.  Here is a list of the conflicts trapped:
+
+<dl>
+<dt><h2><a name="object_level">object_level</a> - error</h2></dt>
+<dd>
+This error traps attempts to serialize types whose
+implementation level is set to non_serializable.
+</dd>
+<dt><h2><a name="object_versioning">object_versioning</a> - error</h2></dt>
+<dd>
+It's possible that for efficiency reasons, a type can be
+assigned a serialization level which doesn't include type information 
+in the archive.  This would preclude the assignment
+of a new version number to the type.  This error
+traps attempts to assign a version number in this case.
+This has to be a user error.
+</dd>
+
+<dt><h2><a name="object_tracking">object_tracking</a> - warning</h2></dt>
+<dd>
+The following code will display a message when compiled:
+
+<code style="white-space: normal"><pre>
+T t;
+ar &lt;&lt; t;
+</pre></code>
+
+unless the tracking_level serialization trait is set to "track_never". The following
+will compile without problem:
+
+<code style="white-space: normal"><pre>
+const T t
+ar &lt;&lt; t;
+</pre></code>
+
+Likewise, the following code will trap at compile time:
+
+<code style="white-space: normal"><pre>
+T * t;
+ar &gt;&gt; t;
+</pre></code>
+
+if the tracking_level serialization trait is set to "track_never".
+<p>
+
+The following case illustrates the function of this message.
+It was originally used as an example in the
+mailing list by Peter Dimov.
+
+<code style="white-space: normal"><pre>
+class construct_from 
+{ 
+    ... 
+}; 
+
+void main(){ 
+    ... 
+    Y y; 
+    construct_from x(y); 
+    ar &lt;&lt; x; 
+} 
+</pre></code>
+
+Suppose that the above message is not displayed and the code is used as is.
+<ol>
+  <li>this example compiles and executes fine. No tracking is done because 
+  construct_from has never been serialized through a pointer. Now some time 
+  later, the next programmer(2) comes along and makes an enhancement. He 
+  wants the archive to be sort of a log. 
+
+<code style="white-space: normal"><pre>
+void main(){ 
+    ... 
+    Y y; 
+    construct_from x(y); 
+    ar &lt;&lt; x; 
+    ... 
+    x.f(); // change x in some way 
+   ... 
+    ar &lt;&lt; x 
+} 
+</pre></code>
+  <p>
+  Again no problem. He gets two different of copies in the archive, each one is different. 
+  That is he gets exactly what he expects and is naturally delighted. 
+  <p>
+  <li>Now sometime later, a third programmer(3) sees construct_from and says - 
+  oh cool, just what I need. He writes a function in a totally disjoint 
+  module. (The project is so big, he doesn't even realize the existence of 
+  the original usage) and writes something like: 
+
+<code style="white-space: normal"><pre>
+class K { 
+    shared_ptr &lt;construct_from&gt; z; 
+    template &lt;class Archive&gt; 
+    void serialize(Archive &amp; ar, const unsigned version){ 
+        ar &lt;&lt; z; 
+    } 
+}; 
+</pre></code>
+
+  <p>
+  He builds and runs the program and tests his new functionality. It works 
+  great and he's delighted. 
+  <p>
+  <li>Things continue smoothly as before.  A month goes by and it's 
+  discovered that when loading the archives made in the last month (reading the 
+  log). Things don't work. The second log entry is always the same as the 
+  first. After a series of very long and increasingly acrimonious email exchanges, 
+it's discovered 
+  that programmer(3) accidentally broke programmer(2)'s code .This is because by 
+  serializing via a pointer, the "log" object is now being tracked.  This is because
+  the default tracking behavior is "track_selectively".  This means that class
+  instances are tracked only if they are serialized through pointers anywhere in
+  the program. Now multiple saves from the same address result in only the first one 
+  being written to the archive. Subsequent saves only add the address - even though the 
+  data might have been changed.  When it comes time to load the data, all instances of the log record show the same data.
+  In this way, the behavior of a functioning piece of code is changed due the side
+  effect of a change in an otherwise disjoint module.
+  Worse yet, the data has been lost and cannot be recovered from the archives.
+  People are really upset and disappointed with boost (at least the serialization system).
+  <p>
+  <li>
+  After a lot of investigation, it's discovered what the source of the problem is
+  and class construct_from is marked "track_never" by including:
+<code style="white-space: normal"><pre>
+BOOST_CLASS_TRACKING(construct_from, track_never) 
+</pre></code>
+  <li>Now everything works again. Or - so it seems.
+  <p>
+  <li><code style="white-space: normal">shared_ptr&lt;construct_from&gt;</code>
+is not going to have a single raw pointer shared amongst the instances. Each loaded 
+<code style="white-space: normal">shared_ptr&lt;construct_from&gt;</code> is going to 
+have its own distinct raw pointer. This will break 
+<code style="white-space: normal">shared_ptr</code> and cause a memory leak.  Again,
+The cause of this problem is very far removed from the point of discovery.  It could 
+well be that the problem is not even discovered until after the archives are loaded.
+Now we not only have a difficult to find and fix program bug, but we have a bunch of
+invalid archives and lost data.
+</ol>
+
+<p>Now consider what happens when the message is displayed:
+
+<ol>
+  <p>
+  <li>Right away, the program traps at 
+<code style="white-space: normal"><pre>
+ar &lt;&lt; x; 
+</pre></code>
+  <p>
+  <li>The programmer curses (another %^&*&* hoop to jump through). He's in a 
+  hurry (and who isn't) and would prefer not to <code style="white-space: normal">const_cast</code>
+  - because it looks bad.  So he'll just make the following change an move on. 
+<code style="white-space: normal"><pre>
+Y y; 
+const construct_from x(y); 
+ar &lt;&lt; x; 
+</pre></code>
+  <p>
+  Things work fine and he moves on. 
+  <p>
+  <li>Now programmer (2) wants to make his change - and again another 
+  annoying const issue; 
+<code style="white-space: normal"><pre>
+Y y; 
+const construct_from x(y); 
+... 
+x.f(); // change x in some way ; compile error f() is not const 
+... 
+ar &lt;&lt; x 
+</pre></code>
+  <p>
+  He's mildly annoyed now he tries the following: 
+  <ul>
+    <li>He considers making f() a const - but presumably that shifts the const 
+    error to somewhere else. And he doesn't want to fiddle with "his" code to 
+    work around a quirk in the serializaition system 
+    <p>
+    <li>He removes the <code style="white-space: normal">const</code>
+    from <code style="white-space: normal">const construct_from</code> above - damn now he 
+    gets the trap. If he looks at the comment code where the 
+    <code style="white-space: normal">BOOST_STATIC_ASSERT</code>
+    occurs, he'll do one of two things 
+    <ol>
+      <p>
+      <li>This is just crazy. Its making my life needlessly difficult and flagging 
+      code that is just fine. So I'll fix this with a <code style="white-space: normal">const_cast</code>
+      and fire off a complaint to the list and maybe they will fix it. 
+      In this case, the story branches off to the previous scenario.
+      <p>
+      <li>Oh, this trap is suggesting that the default serialization isn't really 
+      what I want. Of course in this particular program it doesn't matter. But 
+      then the code in the trap can't really evaluate code in other modules (which 
+      might not even be written yet). OK, I'll add the following to my 
+      construct_from.hpp to solve the problem. 
+<code style="white-space: normal"><pre>
+BOOST_CLASS_TRACKING(construct_from, track_never) 
+</pre></code>
+    </ol>
+  </ul>
+  <p>
+  <li>Now programmer (3) comes along and make his change. The behavior of the 
+  original (and distant module) remains unchanged because the 
+  <code style="white-space: normal">construct_from</code> trait has been set to 
+  "track_never" so he should always get copies and the log should be what we expect.
+  <p>
+  <li>But now he gets another trap - trying to save an object of a 
+  class marked "track_never" through a pointer. So he goes back to 
+  construct_from.hpp and comments out the 
+  <code style="white-space: normal">BOOST_CLASS_TRACKING</code> that 
+  was inserted. Now the second trap is avoided, But damn - the first trap is 
+  popping up again. Eventually, after some code restructuring, the differing
+  requirements of serializating <code style="white-space: normal">construct_from</code>
+  are reconciled.
+</ol>
+Note that in this second scenario
+<ul>
+  <li>all errors are trapped at compile time.
+  <li>no invalid archives are created.
+  <li>no data is lost.
+  <li>no runtime errors occur.
+</ul>
+
+It's true that these messages may sometimes flag code that is currently correct and
+that this may be annoying to some programmers.  However, this example illustrates
+my view that these messages are useful and that any such annoyance is a small price to
+pay to avoid particularly vexing programming errors.
+
+</dd>
+
+<dt><h2><a name="pointer_level">pointer_level</a> - warning</h2></dt>
+<dd>
+This trap addresses the following situation when serializing 
+a pointer:
+<ul>
+<li>A type doesn't save class information in the
+archive. That is, the serialization trait implementation
+level &lt;= object_serializable.
+<li>Tracking for this type is set to "track selectively"
+in this case, indication that an object is tracked is
+not stored in the archive itself - see level == object_serializable.
+Since class information is not saved in the archive, the existence
+or absence of the operation <code style="white-space: normal">ar &lt;&lt; T *</code> anywhere else in the 
+program is used to infer that an object of this type should be tracked.
+<p>
+A problem arises when a program which reads an archive
+includes the operation <code style="white-space: normal">ar &gt;&gt; T *</code> so that tracking information
+will be included in the archive. When a program which
+creates the archive doesn't include <code style="white-space: normal">ar &lt;&lt; T</code> it is presumed
+that the archive doesn't include tracking information and
+the archive will fail to load.  Also the reverse situation could 
+trigger a similar problem.
+<p>
+Though this situation is unlikely for several reasons, 
+it is possible - hence this warning. 
+</ul>
+So if your program traps here, consider changing the 
+tracking or implementation level traits - or not
+serializing via a pointer.
+</dd>
+
+<dt><h2><a name="pointer_tracking">pointer_tracking</a> - warning</h2></dt>
+<dd>
+Serializing an object of a type marked "track_never" through a pointer
+could result in creating more objects than were saved! There are cases
+in which a user might really want to do this so we leave it as a warning.
+</dd>
+
+<dt><h2><a name="const_loading">const_loading</a> - error</h2></dt>
+<dd>
+One cannot load data into a "const" object unless it's a
+wrapper around some other non-const object.
+</dd>
+</dl>
+
 <hr>
 <p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2002-2004 and Matthias Troyer 2006. 
 Distributed under the Boost Software License, Version 1.0. (See
@@ -123,7 +123,7 @@ int main() {
    gps_position newg;
    {
        // create and open an archive for input
-        std::ifstream ifs("filename", std::ios::binary);
+        std::ifstream ifs("filename");
        boost::archive::text_iarchive ia(ifs);
        // read class state from archive
        ia &gt;&gt; newg;
@@ -136,7 +136,7 @@ int main() {
 <p>For each class to be saved via serialization, there must exist a function to
 save all the class members which define the state of the class.
 For each class to be loaded via serialization, there must exist a function to
-load theese class members in the same sequence as they were saved.
+load these class members in the same sequence as they were saved.
 In the above example, these functions are generated by the
 template member function <code style="white-space: normal">serialize</code>.

@@ -185,7 +185,7 @@ The main application of non-intrusive serialization is to permit serialization
 to be implemented for classes without changing the class definition.
 In order for this to be possible, the class must expose enough information
 to reconstruct the class state.  In this example, we presumed that the
-class had <code style="white-space: normal">public</code> members - not a common occurence.  Only
+class had <code style="white-space: normal">public</code> members - not a common occurrence.  Only
 classes which expose enough information to save and restore the class
 state will be serializable without changing the class definition.
 <h3><a name="serializablemembers">Serializable Members</a></h3>
@@ -290,7 +290,7 @@ class bus_route
    void serialize(Archive &amp; ar, const unsigned int version)
    {
        int i;
-        for(i = 0; i &lt 10; ++i)
+        for(i = 0; i &lt; 10; ++i)
            ar &amp; stops[i];
    }
 public:
@@ -327,7 +327,7 @@ clas pointer may require explicit enumeration of the derived
 classes to be serialized. This is referred to as "registration" or "export"
 of derived classes.  This requirement and the methods of
 satisfying it are explained in detail
-<a href="serialization.html#derivedpointers">here</a>
+<a href="serialization.html#derivedpointers">here</a>.
 <p>
 All this is accomplished automatically by the serialization
 library.  The above code is all that is necessary to accomplish
@@ -541,7 +541,7 @@ This is described later in the manual.
    <dd>This is a variation the original demo which supports xml archives in addition
    to the others. The extra wrapping macro, BOOST_SERIALIZATION_NVP(name), is 
    needed to associate a data item name with the corresponding xml 
-    tag. It is importanted that 'name' be a valid xml tag, else it 
+    tag. It is important that 'name' be a valid xml tag, else it 
    will be impossible to restore the archive. 
    For more information see
    <a target="detail" href="wrappers.html#nvp">Name-Value Pairs</a>.
@@ -569,11 +569,11 @@ anywhere in the program - a memory leak.
 There are couple of ways of fixing this.  One way is to explicitly manage the bus stops.
 However, a more robust and transparent is to use 
 <code style="white-space: normal">shared_ptr</code> rather than raw pointers. Along
-with serialization implemenations for the Standard Library, the serialization library
+with serialization implementations for the Standard Library, the serialization library
 includes implementation of serialization for 
 <code style="white-space: normal">boost::shared ptr</code>.  Given this, it should be
 easy to alter any of these examples to eliminate the memory leak. This is left 
-as an excercise for the reader.
+as an exercise for the reader.

 <hr>
 <p><i>&copy; Copyright <a href="http://www.rrsd.com">Robert Ramey</a> 2002-2004. 
@@ -29,7 +29,7 @@ http://www.boost.org/LICENSE_1_0.txt)
 C++ includes the operator <code style="white-space: normal">dynamic_cast&lt;T&gt;(U * u)</code>
 for casting a pointer at runtime between two related types. However, this can only be 
 used for polymorphic classes.  That is, it can only be used with related classes which have at least one virtual function.
-Limiting the serializaton of pointers to only such class would diminish the applicability
+Limiting the serialization of pointers to only such classes would diminish the applicability
 of the library.

 <h3>Usage</h3>
@@ -42,11 +42,11 @@ They are declared in the namespace
 <dl>
 <dt><h4><pre><code>
 template&lt;class Derived, class Base&gt;
-const void_cast_detail::void_caster &
+const void_cast_detail::void_caster &amp;
 void_cast_register(
-    const Derived * derived = NULL, 
-    const Base * base = NULL
-)
+    Derived const * derived = NULL, 
+    Base * const base = NULL
+);
 </code></pre></h4></dt>
 <dd>
 This function "registers" a pair of related types.  It stores the fact that
@@ -67,8 +67,8 @@ This function "registers" a pair of related types.  It stores the fact that
 <dt><h4><pre><code>
 void *
 void_upcast(
-    extended_type_info const & derived_type,
-    extended_type_info const & base_type,
+    extended_type_info const &amp; derived_type,
+    extended_type_info const &amp; base_type,
    void * const t 
 );
 </code></pre></h4></dt>
@@ -76,8 +76,8 @@ void_upcast(
 <dt><h4><pre><code>
 void *
 void_downcast(
-    extended_type_info const & derived_type,
-    extended_type_info const & base_type,
+    extended_type_info const &amp; derived_type,
+    extended_type_info const &amp; base_type,
    void * const t 
 );
 </code></pre></h4></dt>
@@ -43,7 +43,7 @@ the <A href="traits.html#wrappers"><code>is_wrapper</code></a> trait for
 these wrapper classes is set to true.

 <h3><a name="binaryobjects">Binary Objects</a></h3>
-A binary object is just an sequence of bytes stored as raw
+A binary object is just a sequence of bytes stored as raw
 binary data.  This would most likely be used for a large amount
 of "light weight" data such as a pixel map or embedded binary file.
 The header file 
@@ -59,12 +59,12 @@ which will construct a temporary binary object that can be serialized just like
 Its default serialization is to use archive class primitives 
 <code style="white-space: normal">save_binary</code> and <code>load_binary</code>.  
 Note that it doesn't allocated any storage or create any objects.
-Its sole purpose is to pass the data size and address as pair to the archive class.  
+Its sole purpose is to pass the data size and address as a pair to the archive class.  


 <h3><a name="arrays">Arrays</a></h3>
 An array is a contiguous sequence of homogeneous data types, such as a builtin
-C-array, a <code>boost::array&lt;T></code> or a <code>std::vector&lt;T></code>. 
+C-array, a <code>boost::array&lt;T&gt;</code> or a <code>std::vector&lt;T&gt;</code>. 
 The purpose of this wrapper is to support archive types (such as binary
 archives) that provide optimized serialization for contiguous sequences of 
 objects of the same type. 
@@ -75,12 +75,12 @@ array.hpp
 </a>
 includes the function
 <pre><code>
-template &lt;T>
+template &lt;T&gt;
 boost::serialization::make_array(T* t, std::size_t size);
 </code></pre>
 which will construct a temporary <code>array</code> object
 <pre><code>
-template<class T>
+template&lt;class T&gt;
 class array
 {
 public:    
@@ -91,7 +91,7 @@ public:
 };
 </code></pre>
 that can be serialized just like any other object.
-Its default serialization is to use serialize each array element.  
+Its default serialization is to serialize each array element.  
 Note that it doesn't allocated any storage or create any objects.
 Its sole purpose is to pass the data type, size and address to the archive class.

@@ -118,7 +118,7 @@ An example of a strong typedef is the <code>collection_size_type</code> in the
 header file
 <a href="../../../boost/serialization/collection_size_type.hpp" target="collection_size_type_hpp">
 collection_size_type.hpp
-</a>. This type should be used for serializaing the size of a C++ collection, so
+</a>. This type should be used for serializing the size of a C++ collection, so
 that the archive can pick the best integral representation for the serialization
 of collection sizes. This is necessary since, although <code>std::size_t</code>
 is guaranteed to be an integral type large enough to represent the size of
@@ -158,27 +158,27 @@ The xml archive classes contain code similar to:
 <pre><code>
 // special treatment for name-value pairs.
 template&lt;class T&gt;
-xml_oarchive & operator&(const boost::serialization::nvp<T> & t)
+xml_oarchive &amp; operator&amp;(const boost::serialization::nvp&lt;T&gt; &amp; t)
 {
    // write an xml start tag
    start_tag(t.name());

    // serialize the data as usual
-    *this & t.value();
+    *this &amp; t.value();

    // write an xml end tag
    end_tag(t.name());
 }
 </code></pre>
-The most obvious and convient name to assign to as the XML data item name
-is - surpise! - the name of the C++ class data member.  So our serialization
+The most obvious and convenient name to assign to as the XML data item name
+is - surprise! - the name of the C++ class data member.  So our serialization
 code will look like:
 <pre><code>
-ar & make_nvp("my_variable", my_variable);
+ar &amp; make_nvp("my_variable", my_variable);
 </code></pre>
 To simplify typing and enhance readability a macro is defined so we can write:
 <pre><code>
-ar & BOOST_SERIALIZATION_NVP(my_variable);
+ar &amp; BOOST_SERIALIZATION_NVP(my_variable);
 </code></pre>
 Similarly there exists a macro definition that permits us to write:
 <pre><code>
@@ -200,7 +200,7 @@ is example of the XML Archive corresponding to our tutorial example.
 Wrappers should be designed so that they can be composed as necessary.
 For example, to pass binary data as a name value pair use:
 <pre><code>
-ar & make_nvp("named_binary_object", make_binary_object(address, size));
+ar &amp; make_nvp("named_binary_object", make_binary_object(address, size));
 </code></pre>
 </html>
 <hr>
@@ -1,41 +0,0 @@
-# Boost serialization Library Build Jamfile
-#  (C) Copyright Robert Ramey 2002-2004.
-#  Use, modification, and distribution are subject to the
-#  Boost Software License, Version 1.0. (See accompanying file
-#  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-#
-#  See http://www.boost.org/libs/serialization for the library home page.
-
-subproject libs/serialization/example ;
-
-rule demo-bsl-build ( demo-name )
-{
-    exe $(demo-name)
-        : # sources
-            $(demo-name).cpp
-            <lib>../build/boost_serialization
-        : # requirements
-            # copy to a path rooted at BOOST_ROOT:
-            <locate>$(BOOST_ROOT)
-            <include>$(BOOST_ROOT)  
-            <sysinclude>$(BOOST_ROOT)
-            <borland><*><cxxflags>-w-8080
-            <msvc><release><cxxflags>-Gy
-            <vc7><release><cxxflags>-Gy
-            <vc-7_0><release><cxxflags>-Gy
-            <vc-7_1><release><cxxflags>-Gy
-        : # default build
-            debug
-    ;
-}
-
-demo-bsl-build demo ;
-demo-bsl-build demo_auto_ptr ;
-demo-bsl-build demo_exception ;
-demo-bsl-build demo_fast_archive ;
-demo-bsl-build demo_pimpl ;
-demo-bsl-build demo_portable_archive ;
-demo-bsl-build demo_shared_ptr ;
-demo-bsl-build demo_xml ;
-demo-bsl-build demo_xml_save ;
-demo-bsl-build demo_xml_load ;
@@ -0,0 +1,42 @@
+# Boost serialization Library Build Jamfile
+#  (C) Copyright Robert Ramey 2002-2004.
+#  Use, modification, and distribution are subject to the
+#  Boost Software License, Version 1.0. (See accompanying file
+#  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#
+#  See http://www.boost.org/libs/serialization for the library home page.
+
+project libs/serialization/example
+    : id serialization_example
+    : requirements <library>../build//boost_serialization
+    ;
+
+import ../util/test :
+    run-template
+    run-invoke
+    run-winvoke
+    test-bsl-run-no-lib
+    test-bsl-run
+    test-bsl-run_archive
+    test-bsl-run_files
+    test-bsl-run_polymorphic_archive
+;
+
+test-suite "demo-suite" :
+    # demos
+    [ test-bsl-run demo ]
+    [ test-bsl-run demo_auto_ptr ]
+    [ test-bsl-run demo_exception ]
+    [ test-bsl-run demo_fast_archive ]
+    [ test-bsl-run demo_log : log_archive ]
+    [ test-bsl-run demo_pimpl : demo_pimpl_A ]
+    [ test-bsl-run demo_polymorphic : demo_polymorphic_A ]
+    [ test-bsl-run demo_portable_archive : portable_binary_iarchive portable_binary_oarchive ]
+    [ test-bsl-run demo_shared_ptr ]
+    [ test-bsl-run demo_simple_log ]
+    [ test-bsl-run demo_trivial_archive ]
+    [ test-bsl-run demo_xml ]
+    [ test-bsl-run demo_xml_save ]
+    [ test-bsl-run demo_xml_load : : : <dependency>demo_xml_save ]
+;
+
@@ -7,6 +7,7 @@
 // http://www.boost.org/LICENSE_1_0.txt)


+#include <cstddef> // NULL
 #include <iomanip>
 #include <iostream>
 #include <fstream>
@@ -20,27 +21,27 @@
 #include <boost/serialization/base_object.hpp>
 #include <boost/serialization/utility.hpp>
 #include <boost/serialization/list.hpp>
-#include <boost/serialization/is_abstract.hpp>
+#include <boost/serialization/assume_abstract.hpp>

 /////////////////////////////////////////////////////////////
 // The intent of this program is to serve as a tutorial for
 // users of the serialization package.  An attempt has been made
-// to illustrate most of the facilities of the package.  
+// to illustrate most of the facilities of the package.
 //
-// The intent is to create an example suffciently complete to
+// The intent is to create an example sufficiently complete to
 // illustrate the usage and utility of the package while
-// including a minimum of other code. 
+// including a minimum of other code.
 //
 // This illustration models the bus system of a small city.
 // This includes, multiple bus stops,  bus routes and schedules.
-// There are different kinds of stops.  Bus stops in general will
+// There are different kinds of stops.  Bus stops in general
 // will appear on multiple routes.  A schedule will include
-// muliple trips on the same route.
+// multiple trips on the same route.

 /////////////////////////////////////////////////////////////
 // gps coordinate
 //
-// llustrates serialization for a simple type
+// illustrates serialization for a simple type
 //
 class gps_position
 {
@@ -56,7 +57,7 @@ class gps_position
 public:
    // every serializable class needs a constructor
    gps_position(){};
-    gps_position(int _d, int _m, float _s) : 
+    gps_position(int _d, int _m, float _s) :
        degrees(_d), minutes(_m), seconds(_s)
    {}
 };
@@ -93,7 +94,7 @@ public:
    virtual ~bus_stop(){}
 };

-BOOST_IS_ABSTRACT(bus_stop)
+BOOST_SERIALIZATION_ASSUME_ABSTRACT(bus_stop)

 std::ostream & operator<<(std::ostream &os, const bus_stop &bs)
 {
@@ -146,7 +147,7 @@ class bus_stop_destination : public bus_stop
        ar & boost::serialization::base_object<bus_stop>(*this) & name;
    }
 public:
-    
+
    bus_stop_destination(){}
    bus_stop_destination(
        const gps_position & _lat, const gps_position & _long, const std::string & _name
@@ -161,7 +162,7 @@ public:
 //
 // illustrates serialization of STL collection templates.
 //
-// illustrates serialzation of polymorphic pointer (bus stop *);
+// illustrates serialization of polymorphic pointer (bus stop *);
 //
 // illustrates storage and recovery of shared pointers is correct
 // and efficient.  That is objects pointed to by more than one
@@ -212,7 +213,7 @@ std::ostream & operator<<(std::ostream &os, const bus_route &br)
 // Illustrates serialization of STL objects(pair) in a non-intrusive way.
 // See definition of operator<< <pair<F, S> >(ar, pair) and others in
 // serialization.hpp
-// 
+//
 // illustrates nesting of serializable classes
 //
 // illustrates use of version number to automatically grandfather older
@@ -232,7 +233,7 @@ public:
            if(file_version >= 2)
                // read the drivers name
                ar & driver;
-            // all versions have the follwing info
+            // all versions have the following info
            ar & hour & minute;
        }

@@ -264,7 +265,7 @@ public:
    }
    bus_schedule(){}
 };
-BOOST_CLASS_VERSION(bus_schedule, 2)
+BOOST_CLASS_VERSION(bus_schedule::trip_info, 2)

 std::ostream & operator<<(std::ostream &os, const bus_schedule::trip_info &ti)
 {
@@ -298,7 +299,7 @@ restore_schedule(bus_schedule &s, const char * filename)
 }

 int main(int argc, char *argv[])
-{   
+{
    // make the schedule
    bus_schedule original_schedule;

@@ -325,7 +326,7 @@ int main(int argc, char *argv[])
        "Lincoln Memorial"
    );

-    // make a  routes
+    // make a route
    bus_route route0;
    route0.append(bs0);
    route0.append(bs1);
@@ -336,7 +337,7 @@ int main(int argc, char *argv[])
    original_schedule.append("bob", 9, 57, &route0);
    original_schedule.append("alice", 11, 02, &route0);

-    // make aother routes
+    // make another route
    bus_route route1;
    route1.append(bs3);
    route1.append(bs2);
@@ -350,7 +351,7 @@ int main(int argc, char *argv[])
    // display the complete schedule
    std::cout << "original schedule";
    std::cout << original_schedule;
-    
+
    std::string filename(boost::archive::tmpdir());
    filename += "/demofile.txt";

@@ -358,7 +359,7 @@ int main(int argc, char *argv[])
    save_schedule(original_schedule, filename.c_str());

    // ... some time later
-    // make  a new schedule
+    // make a new schedule
    bus_schedule new_schedule;

    restore_schedule(new_schedule, filename.c_str());
@@ -1,7 +1,7 @@
 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
 // demo_auto_ptr.cpp

-// (C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com . 
+// (C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com .
 // Use, modification and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
@@ -14,7 +14,7 @@
 #include <cstdio> // remove, std::autoptr inteface wrong in dinkumware
 #include <boost/config.hpp>
 #if defined(BOOST_NO_STDC_NAMESPACE)
-namespace std{ 
+namespace std{
    using ::remove;
 }
 #endif
@@ -25,17 +25,17 @@ namespace std{

 #include <boost/serialization/split_free.hpp>

-namespace boost { 
+namespace boost {
 namespace serialization {

 /////////////////////////////////////////////////////////////
-// implement serialization for auto_ptr<T>
+// implement serialization for auto_ptr< T >
 // note: this must be added to the boost namespace in order to
 // be called by the library
 template<class Archive, class T>
 inline void save(
    Archive & ar,
-    const std::auto_ptr<T> &t,
+    const std::auto_ptr< T > &t,
    const unsigned int file_version
 ){
    // only the raw pointer has to be saved
@@ -47,7 +47,7 @@ inline void save(
 template<class Archive, class T>
 inline void load(
    Archive & ar,
-    std::auto_ptr<T> &t,
+    std::auto_ptr< T > &t,
    const unsigned int file_version
 ){
    T *pTarget;
@@ -55,7 +55,7 @@ inline void load(
    // note that the reset automagically maintains the reference count
    #if BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, == 1)
        t.release();
-        t = std::auto_ptr<T>(pTarget);
+        t = std::auto_ptr< T >(pTarget);
    #else
        t.reset(pTarget);
    #endif
@@ -66,7 +66,7 @@ inline void load(
 template<class Archive, class T>
 inline void serialize(
    Archive & ar,
-    std::auto_ptr<T> &t,
+    std::auto_ptr< T > &t,
    const unsigned int file_version
 ){
    boost::serialization::split_free(ar, t, file_version);
@@ -0,0 +1,318 @@
+#ifndef BOOST_SERIALIZATION_TEST_A_HPP
+#define BOOST_SERIALIZATION_TEST_A_HPP
+
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// A.hpp    simple class test
+
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#include <cassert>
+#include <cstdlib> // for rand()
+#include <cmath> // for fabs()
+#include <cstddef> // size_t
+#include <boost/math/special_functions/next.hpp>
+
+#include <boost/config.hpp>
+#if defined(BOOST_NO_STDC_NAMESPACE)
+namespace std{
+    using ::rand;
+    using ::fabs;
+    using ::size_t;
+}
+#endif
+
+//#include <boost/test/test_exec_monitor.hpp>
+#include <boost/limits.hpp>
+#include <boost/cstdint.hpp>
+
+#include <boost/detail/workaround.hpp>
+#if BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, == 1)
+#include <boost/archive/dinkumware.hpp>
+#endif
+
+#include <boost/serialization/nvp.hpp>
+#include <boost/serialization/string.hpp>
+#include <boost/serialization/access.hpp>
+
+class A
+{
+private:
+    friend class boost::serialization::access;
+    // note: from an aesthetic perspective, I would much prefer to have this
+    // defined out of line.  Unfortunately, this trips a bug in the VC 6.0
+    // compiler. So hold our nose and put it her to permit running of tests.
+    template<class Archive>
+    void serialize(
+        Archive &ar,
+        const unsigned int /* file_version */
+    ){
+        ar & BOOST_SERIALIZATION_NVP(b);
+        #ifndef BOOST_NO_INT64_T
+        ar & BOOST_SERIALIZATION_NVP(f);
+        ar & BOOST_SERIALIZATION_NVP(g);
+        #endif
+        #if BOOST_WORKAROUND(BOOST_BORLANDC,  <= 0x551 )
+            int i;
+            if(BOOST_DEDUCED_TYPENAME Archive::is_saving::value){
+                i = l;
+                ar & BOOST_SERIALIZATION_NVP(i);
+            }
+            else{
+                ar & BOOST_SERIALIZATION_NVP(i);
+                l = i;
+            }
+        #else
+            ar & BOOST_SERIALIZATION_NVP(l);
+        #endif
+        ar & BOOST_SERIALIZATION_NVP(m);
+        ar & BOOST_SERIALIZATION_NVP(n);
+        ar & BOOST_SERIALIZATION_NVP(o);
+        ar & BOOST_SERIALIZATION_NVP(p);
+        ar & BOOST_SERIALIZATION_NVP(q);
+        #ifndef BOOST_NO_CWCHAR
+        ar & BOOST_SERIALIZATION_NVP(r);
+        #endif
+        ar & BOOST_SERIALIZATION_NVP(c);
+        ar & BOOST_SERIALIZATION_NVP(s);
+        ar & BOOST_SERIALIZATION_NVP(t);
+        ar & BOOST_SERIALIZATION_NVP(u);
+        ar & BOOST_SERIALIZATION_NVP(v);
+        ar & BOOST_SERIALIZATION_NVP(w);
+        ar & BOOST_SERIALIZATION_NVP(x);
+        ar & BOOST_SERIALIZATION_NVP(y);
+        #ifndef BOOST_NO_STD_WSTRING
+        ar & BOOST_SERIALIZATION_NVP(z);
+        #endif
+    }
+    bool b;
+    #ifndef BOOST_NO_INT64_T
+    boost::int64_t f;
+    boost::uint64_t g;
+    #endif
+    enum h {
+        i = 0,
+        j,
+        k
+    } l;
+    std::size_t m;
+    signed long n;
+    unsigned long o;
+    signed  short p;
+    unsigned short q;
+    #ifndef BOOST_NO_CWCHAR
+    wchar_t r;
+    #endif
+    char c;
+    signed char s;
+    unsigned char t;
+    signed int u;
+    unsigned int v;
+    float w;
+    double x;
+    std::string y;
+    #ifndef BOOST_NO_STD_WSTRING
+    std::wstring z;
+    #endif
+public:
+    A();
+    bool operator==(const A &rhs) const;
+    bool operator!=(const A &rhs) const;
+    bool operator<(const A &rhs) const; // used by less
+    // hash function for class A
+    operator std::size_t () const;
+    friend std::ostream & operator<<(std::ostream & os, A const & a);
+    friend std::istream & operator>>(std::istream & is, A & a);
+};
+
+//BOOST_TEST_DONT_PRINT_LOG_VALUE(A);
+
+template<class S>
+void randomize(S &x)
+{
+    assert(0 == x.size());
+    for(;;){
+        unsigned int i = std::rand() % 27;
+        if(0 == i)
+            break;
+        x += static_cast<BOOST_DEDUCED_TYPENAME S::value_type>('a' - 1 + i);
+    }
+}
+
+template<class T>
+void accumulate(std::size_t & s, const T & t){
+    const char * tptr = (const char *)(& t);
+    unsigned int count = sizeof(t);
+    while(count-- > 0){
+        s += *tptr++;
+    }
+}
+
+A::operator std::size_t () const {
+    std::size_t retval = 0;
+    accumulate(retval, b);
+    #ifndef BOOST_NO_INT64_T
+    accumulate(retval, f);
+    accumulate(retval, g);
+    #endif
+    accumulate(retval, l);
+    accumulate(retval, m);
+    accumulate(retval, n);
+    accumulate(retval, o);
+    accumulate(retval, p);
+    accumulate(retval, q);
+    #ifndef BOOST_NO_CWCHAR
+    accumulate(retval, r);
+    #endif
+    accumulate(retval, c);
+    accumulate(retval, s);
+    accumulate(retval, t);
+    accumulate(retval, u);
+    accumulate(retval, v);
+    return retval;
+}
+
+inline A::A() :
+    b(true),
+    #ifndef BOOST_NO_INT64_T
+    f(std::rand() * std::rand()),
+    g(std::rand() * std::rand()),
+    #endif
+    l(static_cast<enum h>(std::rand() % 3)),
+    m(std::rand()),
+    n(std::rand()),
+    o(std::rand()),
+    p(std::rand()),
+    q(std::rand()),
+    #ifndef BOOST_NO_CWCHAR
+    r(std::rand()),
+    #endif
+    c(std::rand()),
+    s(std::rand()),
+    t(std::rand()),
+    u(std::rand()),
+    v(std::rand()),
+    w((float)std::rand()),
+    x((double)std::rand())
+{
+    randomize(y);
+    #ifndef BOOST_NO_STD_WSTRING
+    randomize(z);
+    #endif
+}
+
+inline bool A::operator==(const A &rhs) const
+{
+    if(b != rhs.b)
+        return false;
+    if(l != rhs.l)
+        return false;
+    #ifndef BOOST_NO_INT64_T
+    if(f != rhs.f)
+        return false;
+    if(g != rhs.g)
+        return false;
+    #endif
+    if(m != rhs.m)
+        return false;
+    if(n != rhs.n)
+        return false;
+    if(o != rhs.o)
+        return false;
+    if(p != rhs.p)
+        return false;
+    if(q != rhs.q)
+        return false;
+    #ifndef BOOST_NO_CWCHAR
+    if(r != rhs.r)
+        return false;
+    #endif
+    if(c != rhs.c)
+        return false;
+    if(s != rhs.s)
+        return false;
+    if(t != rhs.t)
+        return false;
+    if(u != rhs.u)
+        return false;
+    if(v != rhs.v)
+        return false;
+    if(std::abs( boost::math::float_distance(w, rhs.w)) > 1)
+        return false;
+    if(std::abs( boost::math::float_distance(x, rhs.x)) > 1)
+        return false;
+    if(0 != y.compare(rhs.y))
+        return false;
+    #ifndef BOOST_NO_STD_WSTRING
+    if(0 != z.compare(rhs.z))
+        return false;
+    #endif
+    return true;
+}
+
+inline bool A::operator!=(const A &rhs) const
+{
+    return ! (*this == rhs);
+}
+
+inline bool A::operator<(const A &rhs) const
+{
+    if(b != rhs.b)
+        return b < rhs.b;
+    #ifndef BOOST_NO_INT64_T
+    if(f != rhs.f)
+        return f < rhs.f;
+    if(g != rhs.g)
+        return g < rhs.g;
+    #endif
+    if(l != rhs.l )
+        return l < rhs.l;
+    if(m != rhs.m )
+        return m < rhs.m;
+    if(n != rhs.n )
+        return n < rhs.n;
+    if(o != rhs.o )
+        return o < rhs.o;
+    if(p != rhs.p )
+        return p < rhs.p;
+    if(q != rhs.q )
+        return q < rhs.q;
+    #ifndef BOOST_NO_CWCHAR
+    if(r != rhs.r )
+        return r < rhs.r;
+    #endif
+    if(c != rhs.c )
+        return c < rhs.c;
+    if(s != rhs.s )
+        return s < rhs.s;
+    if(t != rhs.t )
+        return t < rhs.t;
+    if(u != rhs.u )
+        return u < rhs.u;
+    if(v != rhs.v )
+        return v < rhs.v;
+    if(w != rhs.w )
+        return w < rhs.w;
+    if(x != rhs.x )
+        return x < rhs.x;
+    int i = y.compare(rhs.y);
+    if(i !=  0 )
+        return i < 0;
+    #ifndef BOOST_NO_STD_WSTRING
+    int j = z.compare(rhs.z);
+    if(j !=  0 )
+        return j < 0;
+    #endif
+    return false;
+}
+
+#endif // BOOST_SERIALIZATION_TEST_A_HPP
@@ -0,0 +1,317 @@
+#ifndef BOOST_SERIALIZATION_TEST_A_HPP
+#define BOOST_SERIALIZATION_TEST_A_HPP
+
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// A.hpp    simple class test
+
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#include <cassert>
+#include <cstdlib> // for rand()
+#include <cmath> // for fabs()
+#include <cstddef> // size_t
+
+#include <boost/config.hpp>
+#if defined(BOOST_NO_STDC_NAMESPACE)
+namespace std{
+    using ::rand; 
+    using ::fabs;
+    using ::size_t;
+}
+#endif
+
+//#include <boost/test/test_exec_monitor.hpp>
+#include <boost/limits.hpp>
+#include <boost/cstdint.hpp>
+
+#include <boost/detail/workaround.hpp>
+#if BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, == 1)
+#include <boost/archive/dinkumware.hpp>
+#endif
+
+#include <boost/serialization/nvp.hpp>
+#include <boost/serialization/string.hpp>
+#include <boost/serialization/access.hpp>
+
+class A
+{
+private:
+    friend class boost::serialization::access;
+    // note: from an aesthetic perspective, I would much prefer to have this
+    // defined out of line.  Unfortunately, this trips a bug in the VC 6.0
+    // compiler. So hold our nose and put it her to permit running of tests.
+    template<class Archive>
+    void serialize(
+        Archive &ar,
+        const unsigned int /* file_version */
+    ){
+        ar & BOOST_SERIALIZATION_NVP(b);
+        #ifndef BOOST_NO_INT64_T
+        ar & BOOST_SERIALIZATION_NVP(f);
+        ar & BOOST_SERIALIZATION_NVP(g);
+        #endif
+        #if BOOST_WORKAROUND(BOOST_BORLANDC,  <= 0x551 )
+            int i;
+            if(BOOST_DEDUCED_TYPENAME Archive::is_saving::value){
+                i = l;
+                ar & BOOST_SERIALIZATION_NVP(i);
+            }
+            else{
+                ar & BOOST_SERIALIZATION_NVP(i);
+                l = i;
+            }
+        #else
+            ar & BOOST_SERIALIZATION_NVP(l);
+        #endif
+        ar & BOOST_SERIALIZATION_NVP(m);
+        ar & BOOST_SERIALIZATION_NVP(n);
+        ar & BOOST_SERIALIZATION_NVP(o);
+        ar & BOOST_SERIALIZATION_NVP(p);
+        ar & BOOST_SERIALIZATION_NVP(q);
+        #ifndef BOOST_NO_CWCHAR
+        ar & BOOST_SERIALIZATION_NVP(r);
+        #endif
+        ar & BOOST_SERIALIZATION_NVP(c);
+        ar & BOOST_SERIALIZATION_NVP(s);
+        ar & BOOST_SERIALIZATION_NVP(t);
+        ar & BOOST_SERIALIZATION_NVP(u);
+        ar & BOOST_SERIALIZATION_NVP(v);
+        ar & BOOST_SERIALIZATION_NVP(w);
+        ar & BOOST_SERIALIZATION_NVP(x);
+        ar & BOOST_SERIALIZATION_NVP(y);
+        #ifndef BOOST_NO_STD_WSTRING
+        ar & BOOST_SERIALIZATION_NVP(z);
+        #endif
+    }
+    bool b;
+    #ifndef BOOST_NO_INT64_T
+    boost::int64_t f;
+    boost::uint64_t g;
+    #endif
+    enum h {
+        i = 0,
+        j,
+        k
+    } l;
+    std::size_t m;
+    signed long n;
+    unsigned long o;
+    signed  short p;
+    unsigned short q;
+    #ifndef BOOST_NO_CWCHAR
+    wchar_t r;
+    #endif
+    char c;
+    signed char s;
+    unsigned char t;
+    signed int u;
+    unsigned int v;
+    float w;
+    double x;
+    std::string y;
+    #ifndef BOOST_NO_STD_WSTRING
+    std::wstring z;
+    #endif
+public:
+    A();
+    bool operator==(const A &rhs) const;
+    bool operator!=(const A &rhs) const;
+    bool operator<(const A &rhs) const; // used by less
+    // hash function for class A
+    operator std::size_t () const;
+    friend std::ostream & operator<<(std::ostream & os, A const & a);
+    friend std::istream & operator>>(std::istream & is, A & a);
+};
+
+//BOOST_TEST_DONT_PRINT_LOG_VALUE(A);
+
+template<class S>
+void randomize(S &x)
+{
+    assert(0 == x.size());
+    for(;;){
+        unsigned int i = std::rand() % 27;
+        if(0 == i)
+            break;
+        x += static_cast<BOOST_DEDUCED_TYPENAME S::value_type>('a' - 1 + i);
+    }
+}
+
+template<class T>
+void accumulate(std::size_t & s, const T & t){
+    const char * tptr = (const char *)(& t);
+    unsigned int count = sizeof(t);
+    while(count-- > 0){
+        s += *tptr++;
+    }
+}
+
+A::operator std::size_t () const {
+    std::size_t retval = 0;
+    accumulate(retval, b);
+    #ifndef BOOST_NO_INT64_T
+    accumulate(retval, f);
+    accumulate(retval, g);
+    #endif
+    accumulate(retval, l);
+    accumulate(retval, m);
+    accumulate(retval, n);
+    accumulate(retval, o);
+    accumulate(retval, p);
+    accumulate(retval, q);
+    #ifndef BOOST_NO_CWCHAR
+    accumulate(retval, r);
+    #endif
+    accumulate(retval, c);
+    accumulate(retval, s);
+    accumulate(retval, t);
+    accumulate(retval, u);
+    accumulate(retval, v);
+    return retval;
+}
+
+inline A::A() :
+    b(true),
+    #ifndef BOOST_NO_INT64_T
+    f(std::rand() * std::rand()),
+    g(std::rand() * std::rand()),
+    #endif
+    l(static_cast<enum h>(std::rand() % 3)),
+    m(std::rand()),
+    n(std::rand()),
+    o(std::rand()),
+    p(std::rand()),
+    q(std::rand()),
+    #ifndef BOOST_NO_CWCHAR
+    r(std::rand()),
+    #endif
+    c(std::rand()),
+    s(std::rand()),
+    t(std::rand()),
+    u(std::rand()),
+    v(std::rand()),
+    w((float)std::rand()),
+    x((double)std::rand())
+{
+    randomize(y);
+    #ifndef BOOST_NO_STD_WSTRING
+    randomize(z);
+    #endif
+}
+
+inline bool A::operator==(const A &rhs) const
+{
+    if(b != rhs.b)
+        return false;
+    if(l != rhs.l)
+        return false;
+    #ifndef BOOST_NO_INT64_T
+    if(f != rhs.f)
+        return false;
+    if(g != rhs.g)
+        return false;
+    #endif
+    if(m != rhs.m)
+        return false;
+    if(n != rhs.n)
+        return false;
+    if(o != rhs.o)
+        return false;
+    if(p != rhs.p)
+        return false; 
+    if(q != rhs.q)
+        return false;
+    #ifndef BOOST_NO_CWCHAR
+    if(r != rhs.r)
+        return false; 
+    #endif
+    if(c != rhs.c)
+        return false;
+    if(s != rhs.s)
+        return false;
+    if(t != rhs.t)
+        return false;
+    if(u != rhs.u)
+        return false; 
+    if(v != rhs.v)
+        return false;
+    if(std::abs( boost::math::float_distance(w, rhs.w)) > 1)
+        return false;
+    if(std::abs( boost::math::float_distance(x, rhs.x)) > 1)
+        return false;
+    if(0 != y.compare(rhs.y))
+        return false;
+    #ifndef BOOST_NO_STD_WSTRING
+    if(0 != z.compare(rhs.z))
+        return false;
+    #endif      
+    return true;
+}
+
+inline bool A::operator!=(const A &rhs) const
+{
+    return ! (*this == rhs);
+}
+
+inline bool A::operator<(const A &rhs) const
+{
+    if(b != rhs.b)
+        return b < rhs.b;
+    #ifndef BOOST_NO_INT64_T
+    if(f != rhs.f)
+        return f < rhs.f;
+    if(g != rhs.g)
+        return g < rhs.g;
+    #endif
+    if(l != rhs.l )
+        return l < rhs.l;
+    if(m != rhs.m )
+        return m < rhs.m;
+    if(n != rhs.n )
+        return n < rhs.n;
+    if(o != rhs.o )
+        return o < rhs.o;
+    if(p != rhs.p )
+        return p < rhs.p;
+    if(q != rhs.q )
+        return q < rhs.q;
+    #ifndef BOOST_NO_CWCHAR
+    if(r != rhs.r )
+        return r < rhs.r;
+    #endif
+    if(c != rhs.c )
+        return c < rhs.c;
+    if(s != rhs.s )
+        return s < rhs.s;
+    if(t != rhs.t )
+        return t < rhs.t;
+    if(u != rhs.u )
+        return u < rhs.u; 
+    if(v != rhs.v )
+        return v < rhs.v;
+    if(w != rhs.w )
+        return w < rhs.w; 
+    if(x != rhs.x )
+        return x < rhs.x;
+    int i = y.compare(rhs.y);
+    if(i !=  0 )
+        return i < 0;
+    #ifndef BOOST_NO_STD_WSTRING
+    int j = z.compare(rhs.z);
+    if(j !=  0 )
+        return j < 0;
+    #endif
+    return false;
+}
+
+#endif // BOOST_SERIALIZATION_TEST_A_HPP
@@ -0,0 +1,113 @@
+#ifndef BOOST_SERIALIZATION_TEST_B_HPP
+#define BOOST_SERIALIZATION_TEST_B_HPP
+
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// B.hpp
+
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#include <cstdlib> // for rand()
+#include <boost/math/special_functions/next.hpp>
+
+#include <boost/config.hpp>
+#if defined(BOOST_NO_STDC_NAMESPACE)
+namespace std{
+    using ::rand;
+}
+#endif
+
+#include <boost/serialization/version.hpp>
+#include <boost/serialization/split_member.hpp>
+#include <boost/serialization/base_object.hpp>
+
+#include "A.hpp"
+
+///////////////////////////////////////////////////////
+// Derived class test
+class B : public A
+{
+private:
+    friend class boost::serialization::access;
+    template<class Archive>
+    void save(Archive &ar, const unsigned int /* file_version */) const
+    {
+        // write any base class info to the archive
+        ar << BOOST_SERIALIZATION_BASE_OBJECT_NVP(A);
+
+        // write out members
+        ar << BOOST_SERIALIZATION_NVP(s);
+        ar << BOOST_SERIALIZATION_NVP(t);
+        ar << BOOST_SERIALIZATION_NVP(u);
+        ar << BOOST_SERIALIZATION_NVP(v);
+        ar << BOOST_SERIALIZATION_NVP(w);
+        ar << BOOST_SERIALIZATION_NVP(x);
+    }
+
+    template<class Archive>
+    void load(Archive & ar, const unsigned int file_version)
+    {
+        // read any base class info to the archive
+        ar >> BOOST_SERIALIZATION_BASE_OBJECT_NVP(A);
+        switch(file_version){
+        case 1:
+        case 2:
+            ar >> BOOST_SERIALIZATION_NVP(s);
+            ar >> BOOST_SERIALIZATION_NVP(t);
+            ar >> BOOST_SERIALIZATION_NVP(u);
+            ar >> BOOST_SERIALIZATION_NVP(v);
+            ar >> BOOST_SERIALIZATION_NVP(w);
+            ar >> BOOST_SERIALIZATION_NVP(x);
+        default:
+            break;
+        }
+    }
+
+    BOOST_SERIALIZATION_SPLIT_MEMBER()
+    signed char s;
+    unsigned char t;
+    signed int u;
+    unsigned int v;
+    float w;
+    double x;
+public:
+    B();
+    virtual ~B(){};
+    bool operator==(const B &rhs) const;
+};
+
+B::B() :
+    s(std::rand()),
+    t(std::rand()),
+    u(std::rand()),
+    v(std::rand()),
+    w((float)std::rand() / std::rand()),
+    x((double)std::rand() / std::rand())
+{
+}
+
+BOOST_CLASS_VERSION(B, 2)
+
+inline bool B::operator==(const B &rhs) const
+{
+    return
+        A::operator==(rhs)
+        && s == rhs.s
+        && t == rhs.t
+        && u == rhs.u
+        && v == rhs.v
+        && std::abs( boost::math::float_distance(w, rhs.w)) < 2
+        && std::abs( boost::math::float_distance(x, rhs.x)) < 2
+    ;
+}
+
+#endif // BOOST_SERIALIZATION_TEST_B_HPP
@@ -0,0 +1,112 @@
+#ifndef BOOST_SERIALIZATION_TEST_B_HPP
+#define BOOST_SERIALIZATION_TEST_B_HPP
+
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// B.hpp
+
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#include <cstdlib> // for rand()
+
+#include <boost/config.hpp>
+#if defined(BOOST_NO_STDC_NAMESPACE)
+namespace std{
+    using ::rand; 
+}
+#endif
+
+#include <boost/serialization/version.hpp>
+#include <boost/serialization/split_member.hpp>
+#include <boost/serialization/base_object.hpp>
+
+#include "A.hpp"
+
+///////////////////////////////////////////////////////
+// Derived class test
+class B : public A
+{
+private:
+    friend class boost::serialization::access;
+    template<class Archive>
+    void save(Archive &ar, const unsigned int /* file_version */) const
+    {
+        // write any base class info to the archive
+        ar << BOOST_SERIALIZATION_BASE_OBJECT_NVP(A);
+
+        // write out members
+        ar << BOOST_SERIALIZATION_NVP(s);
+        ar << BOOST_SERIALIZATION_NVP(t);
+        ar << BOOST_SERIALIZATION_NVP(u);
+        ar << BOOST_SERIALIZATION_NVP(v);
+        ar << BOOST_SERIALIZATION_NVP(w);
+        ar << BOOST_SERIALIZATION_NVP(x);
+    }
+
+    template<class Archive>
+    void load(Archive & ar, const unsigned int file_version)
+    {
+        // read any base class info to the archive
+        ar >> BOOST_SERIALIZATION_BASE_OBJECT_NVP(A);
+        switch(file_version){
+        case 1:
+        case 2:
+            ar >> BOOST_SERIALIZATION_NVP(s);
+            ar >> BOOST_SERIALIZATION_NVP(t);
+            ar >> BOOST_SERIALIZATION_NVP(u);
+            ar >> BOOST_SERIALIZATION_NVP(v);
+            ar >> BOOST_SERIALIZATION_NVP(w);
+            ar >> BOOST_SERIALIZATION_NVP(x);
+        default:
+            break;
+        }
+    }
+
+    BOOST_SERIALIZATION_SPLIT_MEMBER()
+    signed char s;
+    unsigned char t;
+    signed int u;
+    unsigned int v;
+    float w;
+    double x;
+public:
+    B();
+    virtual ~B(){};
+    bool operator==(const B &rhs) const;
+};
+
+B::B() :
+    s(std::rand()),
+    t(std::rand()),
+    u(std::rand()),
+    v(std::rand()),
+    w((float)std::rand() / std::rand()),
+    x((double)std::rand() / std::rand())
+{
+}
+
+BOOST_CLASS_VERSION(B, 2)
+
+inline bool B::operator==(const B &rhs) const
+{
+    return
+        A::operator==(rhs)
+        && s == rhs.s 
+        && t == rhs.t 
+        && u == rhs.u 
+        && v == rhs.v 
+        && std::abs( boost::math::float_distance(w, rhs.w)) < 2
+        && std::abs( boost::math::float_distance(x, rhs.x)) < 2
+    ;
+}
+
+#endif // BOOST_SERIALIZATION_TEST_B_HPP
@@ -1,31 +1,32 @@
 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
 // demo_exception.cpp

-// (C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com . 
+// (C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com .
 // Use, modification and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)

 // Example of safe exception handling for pointer de-serialization
-// 
-// This example was prepared by Robert Ramey to demonstrate and test 
+//
+// This example was prepared by Robert Ramey to demonstrate and test
 // safe exception handling during the de-serialization of pointers in
 // a non-trivial example.
 //
 // Hopefully, this addresses exception issues raised by
 // Vahan Margaryan who spent considerable time and effort
-// in the analysis and testing of issues of exception safety 
+// in the analysis and testing of issues of exception safety
 // of the serialization library.

 #include <algorithm>
 #include <iostream>
+#include <cstddef> // NULL
 #include <fstream>
 #include <string>

 #include <cstdio> // remove
 #include <boost/config.hpp>
 #if defined(BOOST_NO_STDC_NAMESPACE)
-namespace std{ 
+namespace std{
    using ::remove;
 }
 #endif
@@ -126,7 +127,7 @@ private:
 // case 1:
 template<class Archive>
 void School::serialize(Archive & ar, const unsigned int /* file_version */){
-    // if an exeception occurs while loading courses
+    // if an exception occurs while loading courses
    // the structure courses may have some courses each
    // with students
    ar & all_courses;
@@ -154,7 +155,7 @@ void School::save(Archive & ar, const unsigned int /* file_version */) const {

 template<class Archive>
 void School::load(Archive & ar, const unsigned int /* file_version */){
-    // if an exeception occurs while loading courses
+    // if an exception occurs while loading courses
    // the structure courses may have some courses each
    // with students
    try{
@@ -166,7 +167,7 @@ void School::load(Archive & ar, const unsigned int /* file_version */){
        ar >> all_students; // create students that have no courses
    }
    catch(std::exception){
-        // elminate any dangling references
+        // eliminate any dangling references
        all_courses.clear();
        all_students.clear();
        throw;
@@ -1,7 +1,7 @@
 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
 // demo_fast_binary_archive.cpp

-// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
 // Use, modification and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
@@ -11,11 +11,11 @@

 #include <boost/static_assert.hpp>
 #include <boost/type_traits/is_array.hpp>
-#include <boost/pfto.hpp>

 #define BOOST_ARCHIVE_SOURCE
 #include <boost/archive/binary_oarchive_impl.hpp>
 #include <boost/archive/binary_iarchive_impl.hpp>
+#include <boost/archive/detail/register_archive.hpp>

 // include template definitions for base classes used.  Otherwise
 // you'll get link failure with undefined symbols
@@ -24,25 +24,22 @@
 #include <boost/archive/impl/basic_binary_oarchive.ipp>
 #include <boost/archive/impl/basic_binary_iarchive.ipp>

-#include <boost/archive/impl/archive_pointer_iserializer.ipp>
-#include <boost/archive/impl/archive_pointer_oserializer.ipp>
-
 using namespace boost::archive;

 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
-// "Fast" output binary archive.  This is a variation of the native binary 
+// "Fast" output binary archive.  This is a variation of the native binary
 class fast_binary_oarchive :
    // don't derive from binary_oarchive !!!
    public binary_oarchive_impl<
-        fast_binary_oarchive, 
-        std::ostream::char_type, 
+        fast_binary_oarchive,
+        std::ostream::char_type,
        std::ostream::traits_type
    >
 {
    typedef fast_binary_oarchive derived_t;
    typedef binary_oarchive_impl<
-        fast_binary_oarchive, 
-        std::ostream::char_type, 
+        fast_binary_oarchive,
+        std::ostream::char_type,
        std::ostream::traits_type
    > base_t;
 #ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
@@ -51,38 +48,38 @@ public:
    friend class boost::archive::detail::interface_oarchive<derived_t>;
    friend class basic_binary_oarchive<derived_t>;
    friend class basic_binary_oprimitive<
-        derived_t, 
-        std::ostream::char_type, 
+        derived_t,
+        std::ostream::char_type,
        std::ostream::traits_type
    >;
    friend class boost::archive::save_access;
 #endif
    // add base class to the places considered when matching
    // save function to a specific set of arguments.  Note, this didn't
-    // work on my MSVC 7.0 system using 
+    // work on my MSVC 7.0 system using
    // binary_oarchive_impl<derived_t>::load_override;
    // so we use the sure-fire method below.  This failed to work as well
    template<class T>
-    void save_override(T & t, BOOST_PFTO int){
-        base_t::save_override(t, 0);
+    void save_override(T & t){
+        base_t::save_override(t);
        // verify that this program is in fact working by making sure
        // that arrays are getting passed here
        BOOST_STATIC_ASSERT(! (boost::is_array<T>::value) );
    }
    template<int N>
-    void save_override(const int (& t)[N] , int){
+    void save_override(const int (& t)[N]){
        save_binary(t, sizeof(t));
    }
    template<int N>
-    void save_override(const unsigned int (& t)[N], int){
+    void save_override(const unsigned int (& t)[N]){
        save_binary(t, sizeof(t));
    }
    template<int N>
-    void save_override(const long (& t)[N], int){
+    void save_override(const long (& t)[N]){
        save_binary(t, sizeof(t));
    }
    template<int N>
-    void save_override(const unsigned long (& t)[N], int){
+    void save_override(const unsigned long (& t)[N]){
        save_binary(t, sizeof(t));
    }
 public:
@@ -94,20 +91,23 @@ public:
    {}
 };

+// required by export
+BOOST_SERIALIZATION_REGISTER_ARCHIVE(fast_binary_oarchive)
+
 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
-// "Fast" input binary archive.  This is a variation of the native binary 
+// "Fast" input binary archive.  This is a variation of the native binary
 class fast_binary_iarchive :
    // don't derive from binary_oarchive !!!
    public binary_iarchive_impl<
-        fast_binary_iarchive, 
-        std::istream::char_type, 
+        fast_binary_iarchive,
+        std::istream::char_type,
        std::istream::traits_type
    >
 {
    typedef fast_binary_iarchive derived_t;
    typedef binary_iarchive_impl<
-        fast_binary_iarchive, 
-        std::istream::char_type, 
+        fast_binary_iarchive,
+        std::istream::char_type,
        std::istream::traits_type
    > base_t;
 #ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
@@ -116,36 +116,36 @@ public:
    friend class boost::archive::detail::interface_iarchive<derived_t>;
    friend class basic_binary_iarchive<derived_t>;
    friend class basic_binary_iprimitive<
-        derived_t, 
-        std::ostream::char_type, 
+        derived_t,
+        std::ostream::char_type,
        std::ostream::traits_type
    >;
    friend class boost::archive::load_access;
 #endif
    // add base class to the places considered when matching
    // save function to a specific set of arguments.  Note, this didn't
-    // work on my MSVC 7.0 system using 
+    // work on my MSVC 7.0 system using
    // binary_oarchive_impl<derived_t>::load_override;
    // so we use the sure-fire method below.  This failed to work as well
    template<class T>
-    void load_override(T & t, BOOST_PFTO int){
-        base_t::load_override(t, 0);
+    void load_override(T & t){
+        base_t::load_override(t);
        BOOST_STATIC_ASSERT(! (boost::is_array<T>::value) );
    }
    template<int N>
-    void load_override(int (& t)[N], int){
+    void load_override(int (& t)[N]){
        load_binary(t, sizeof(t));
    }
    template<int N>
-    void load_override(unsigned int (& t)[N], int){
+    void load_override(unsigned int (& t)[N]){
        load_binary(t, sizeof(t));
    }
    template<int N>
-    void load_override(long (& t)[N], int){
+    void load_override(long (& t)[N]){
        load_binary(t, sizeof(t));
    }
    template<int N>
-    void load_override(unsigned long (& t)[N], int){
+    void load_override(unsigned long (& t)[N]){
        load_binary(t, sizeof(t));
    }
 public:
@@ -157,13 +157,16 @@ public:
    {}
 };

+// required by export
+BOOST_SERIALIZATION_REGISTER_ARCHIVE(fast_binary_iarchive)
+
 int main( int argc, char* argv[] )
 {
    const int a[3] = {1, 2, 3};
    int a1[3] = {4, 5, 6};

    std::stringstream ss;
-    {   
+    {
        fast_binary_oarchive pboa(ss);
        pboa << a;
    }
@@ -10,27 +10,27 @@
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)

-
-#include <string>
 #include <iomanip>
 #include <iostream>
 #include <fstream>

+#include <boost/serialization/string.hpp>
 #include <boost/serialization/nvp.hpp>
 #include <boost/serialization/utility.hpp>
 #include <boost/serialization/list.hpp>
 #include <boost/serialization/version.hpp>
+#include <boost/serialization/assume_abstract.hpp>

 // This illustration models the bus system of a small city.
 // This includes, multiple bus stops,  bus routes and schedules.
-// There are different kinds of stops.  Bus stops in general will
+// There are different kinds of stops.  Bus stops in general
 // will appear on multiple routes.  A schedule will include
-// muliple trips on the same route.
+// multiple trips on the same route.

 /////////////////////////////////////////////////////////////
 // gps coordinate
 //
-// llustrates serialization for a simple type
+// illustrates serialization for a simple type
 //
 class gps_position
 {
@@ -51,7 +51,7 @@ class gps_position
 public:
    // every serializable class needs a constructor
    gps_position(){};
-    gps_position(int _d, int _m, float _s) : 
+    gps_position(int _d, int _m, float _s) :
        degrees(_d), minutes(_m), seconds(_s)
    {}
 };
@@ -91,7 +91,7 @@ public:
    virtual ~bus_stop(){}
 };

-BOOST_IS_ABSTRACT(bus_stop)
+BOOST_SERIALIZATION_ASSUME_ABSTRACT(bus_stop)

 std::ostream & operator<<(std::ostream &os, const bus_stop &bs)
 {
@@ -159,7 +159,7 @@ public:
 //
 // illustrates serialization of STL collection templates.
 //
-// illustrates serialzation of polymorphic pointer (bus stop *);
+// illustrates serialization of polymorphic pointer (bus stop *);
 //
 // illustrates storage and recovery of shared pointers is correct
 // and efficient.  That is objects pointed to by more than one
@@ -209,7 +209,7 @@ std::ostream & operator<<(std::ostream &os, const bus_route &br)
 //
 // Illustrates serialization of STL objects(pair) in a non-intrusive way.
 // See definition of operator<< <pair<F, S> >(ar, pair)
-// 
+//
 // illustrates nesting of serializable classes
 //
 // illustrates use of version number to automatically grandfather older
@@ -236,7 +236,7 @@ public:
            if(file_version >= 2)
                // read the drivers name
                ar & BOOST_SERIALIZATION_NVP(driver);
-            // all versions have the follwing info
+            // all versions have the following info
            ar  & BOOST_SERIALIZATION_NVP(hour)
                & BOOST_SERIALIZATION_NVP(minute);
        }
@@ -0,0 +1,76 @@
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+//
+// demo_log.cpp
+//
+// (C) Copyright 2009 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <iostream>
+#include <cstdio>
+
+#include "demo_gps.hpp"
+#include "log_archive.hpp"
+
+int main(int argc, char *argv[]){
+    // make the schedule
+    bus_schedule schedule;
+
+    // fill in the data
+    // make a few stops
+    bus_stop *bs0 = new bus_stop_corner(
+        gps_position(34, 135, 52.560f),
+        gps_position(134, 22, 78.30f),
+        "24th Street", "10th Avenue"
+    );
+    bus_stop *bs1 = new bus_stop_corner(
+        gps_position(35, 137, 23.456f),
+        gps_position(133, 35, 54.12f),
+        "State street", "Cathedral Vista Lane"
+    );
+    bus_stop *bs2 = new bus_stop_destination(
+        gps_position(35, 136, 15.456f),
+        gps_position(133, 32, 15.300f),
+        "White House"
+    );
+    bus_stop *bs3 = new bus_stop_destination(
+        gps_position(35, 134, 48.789f),
+        gps_position(133, 32, 16.230f),
+        "Lincoln Memorial"
+    );
+
+    // make a route
+    bus_route route0;
+    route0.append(bs0);
+    route0.append(bs1);
+    route0.append(bs2);
+
+    // add trips to schedule
+    schedule.append("bob", 6, 24, &route0);
+    schedule.append("bob", 9, 57, &route0);
+    schedule.append("alice", 11, 02, &route0);
+
+    // make another route
+    bus_route route1;
+    route1.append(bs3);
+    route1.append(bs2);
+    route1.append(bs1);
+
+    // add trips to schedule
+    schedule.append("ted", 7, 17, &route1);
+    schedule.append("ted", 9, 38, &route1);
+    schedule.append("alice", 11, 47, &route1);
+
+    // display the complete schedule
+    log_archive oa(std::cout);
+    oa << BOOST_SERIALIZATION_NVP(schedule);
+    oa << schedule;
+
+    delete bs0;
+    delete bs1;
+    delete bs2;
+    delete bs3;
+    return 0;
+}
+
@@ -1,7 +1,7 @@
 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
 // demo_pimpl.cpp

-// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
 // Use, modification and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
@@ -1,7 +1,7 @@
 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
 // demo_pimpl_A.cpp

-// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
 // Use, modification and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
@@ -31,15 +31,15 @@ template<class Archive>
 void A::serialize(Archive & ar, const unsigned int /* file_version */){
    ar & pimpl;
 }
- 
-// without the explicit instantiations below, the program will
-// fail to link for lack of instantiantiation of the above function
+
+// without the explicit instantiation below, the program will
+// fail to link for lack of instantiation of the above function
 // note: the following failed to fix link errors for vc 7.0 !
 template void A::serialize<boost::archive::text_iarchive>(
-    boost::archive::text_iarchive & ar, 
+    boost::archive::text_iarchive & ar,
    const unsigned int file_version
 );
 template void A::serialize<boost::archive::text_oarchive>(
-    boost::archive::text_oarchive & ar, 
+    boost::archive::text_oarchive & ar,
    const unsigned int file_version
 );
@@ -4,7 +4,7 @@
 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
 // demo_pimpl_A.hpp

-// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
 // Use, modification and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
@@ -1,7 +1,7 @@
 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
 // demo_polymorphic.cpp

-// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
 // Use, modification and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
@@ -26,10 +26,10 @@ int main(int argc, char* argv[])
        // test with a text archive
        std::stringstream ss;
        {
-            // instantiate archive which inhertis polymorphic interface
+            // instantiate archive which inherits polymorphic interface
            // and the normal text archive implementation
            boost::archive::polymorphic_text_oarchive oa(ss);
-            boost::archive::polymorphic_oarchive & oa_interface = oa; 
+            boost::archive::polymorphic_oarchive & oa_interface = oa;
            // we can just just the interface for saving
            oa_interface << a;
        }
@@ -45,7 +45,7 @@ int main(int argc, char* argv[])
        //test with a binary archive
        std::stringstream ss;
        {
-            // instantiate archive which inhertis polymorphic interface
+            // instantiate archive which inherits polymorphic interface
            // and the normal binary archive implementation
            boost::archive::polymorphic_binary_oarchive oa(ss);
            oa << a;
@@ -53,7 +53,7 @@ int main(int argc, char* argv[])
        {
            // see above
            boost::archive::polymorphic_binary_iarchive ia(ss);
-            boost::archive::polymorphic_iarchive & ia_interface = ia; 
+            boost::archive::polymorphic_iarchive & ia_interface = ia;
            // use just the polymorphic interface for loading.
            ia_interface >> a1;
        }
@@ -1,7 +1,7 @@
 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
 // demo_polymorphic_A.cpp

-// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
 // Use, modification and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
@@ -12,16 +12,15 @@

 #include "demo_polymorphic_A.hpp"

-// now we can define the serialization for class A
-void A::serialize(
-    boost::archive::polymorphic_iarchive & ar, 
-    const unsigned int file_version
-){
-    ar & data;
-}
-void A::serialize(
-    boost::archive::polymorphic_oarchive & ar, 
-    const unsigned int file_version
-){
-    ar & data;
-}
+// explicitly instantiate templates for polymorphic archives
+// used by this demo.
+template
+void A::serialize<boost::archive::polymorphic_iarchive>(
+    boost::archive::polymorphic_iarchive &,
+    const unsigned int
+);
+template
+void A::serialize<boost::archive::polymorphic_oarchive>(
+    boost::archive::polymorphic_oarchive &,
+    const unsigned int
+);
@@ -4,7 +4,7 @@
 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
 // demo_polymorphic_A.hpp

-// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
 // Use, modification and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
@@ -20,8 +20,13 @@ class polymorphic_oarchive;

 struct A {
    // class a contains a pointer to a "hidden" declaration
-    void serialize(boost::archive::polymorphic_iarchive & ar, const unsigned int file_version);
-    void serialize(boost::archive::polymorphic_oarchive & ar, const unsigned int file_version);
+    template<class Archive>
+    void serialize(
+        Archive & ar,
+        const unsigned int file_version
+    ){
+        ar & data;
+    }
    int data;
    bool operator==(const A & rhs) const {
        return data == rhs.data;
@@ -8,9 +8,12 @@
 // http://www.boost.org/LICENSE_1_0.txt)

 // should pass compilation and execution
+
+// note:: this example can only be built with the static library
+// (at least with MSVC - due to conflicts related to import of library
+// code and instantiation of templates.
 #include <sstream>

-#define BOOST_ARCHIVE_SOURCE
 #include "portable_binary_oarchive.hpp"
 #include "portable_binary_iarchive.hpp"

@@ -20,30 +23,38 @@
 namespace std{ using ::rand; }
 #endif

-// the following is required to be sure the "EXPORT" works if it is used
-#define CUSTOM_ARCHIVE_TYPES portable_binary_oarchive,portable_binary_iarchive
-
 class A
 {
    friend class boost::serialization::access;
+    char c;
+    A *pa;
    int i;
+    int i2; // special tricky case to check sign extension
    unsigned int ui;
    long l;
    unsigned long ul;
    template<class Archive>
    void serialize(Archive & ar, const unsigned int /* version */){
-        ar & i & ui & l & ul ;
+        ar & c & i & i2 & ui & l & ul ;
    }
 public:
    bool operator==(const A & rhs) const {
        return
-            i == rhs.i && ui == rhs.ui && l == rhs.l && ul == rhs.ul
+            c == rhs.c
+            && i == rhs.i
+            && i2 == rhs.i2
+            && ui == rhs.ui
+            && l == rhs.l
+            && ul == rhs.ul
        ;
    }
    A() :
+        c(0xFF & std::rand()),
+        pa(0),
        i(std::rand()),
+        i2(0x80),
        ui(std::rand()),
-        l(std::rand()),
+        l(std::rand() * std::rand()),
        ul(std::rand())
    {}
 };
@@ -54,7 +65,7 @@ int main( int /* argc */, char* /* argv */[] )
    A a1;

    std::stringstream ss;
-    {   
+    {
        portable_binary_oarchive pboa(ss);
        pboa << a;
    }
@@ -62,6 +73,31 @@ int main( int /* argc */, char* /* argv */[] )
        portable_binary_iarchive pbia(ss);
        pbia >> a1;
    }
+    if(! (a == a1))
+        return 1;
+
+    ss.clear();
+    {
+        portable_binary_oarchive pboa(ss, endian_big);
+        pboa << a;
+    }
+    {
+        portable_binary_iarchive pbia(ss, endian_big);
+        pbia >> a1;
+    }
+    if(! (a == a1))
+        return 1;
+
+    ss.clear();
+    {
+        portable_binary_oarchive pboa(ss, endian_big);
+        pboa << a;
+    }
+    {
+        portable_binary_iarchive pbia(ss, endian_big);
+        pbia >> a1;
+    }
+
    return !(a == a1);
 }

@@ -11,13 +11,14 @@

 #include <iomanip>
 #include <iostream>
+#include <cstddef> // NULL
 #include <fstream>
 #include <string>

 #include <cstdio> // remove
 #include <boost/config.hpp>
 #if defined(BOOST_NO_STDC_NAMESPACE)
-namespace std{ 
+namespace std{
    using ::remove;
 }
 #endif
@@ -41,8 +42,8 @@ private:
    }
 public:
    static int count;
-    A::A(){++count;}    // default constructor
-    virtual A::~A(){--count;}   // default destructor
+    A(){++count;}    // default constructor
+    virtual ~A(){--count;}   // default destructor
 };

 BOOST_SERIALIZATION_SHARED_PTR(A)
@@ -60,8 +61,8 @@ private:
    }
 public:
    static int count;
-    B::B() : A() {};
-    virtual B::~B() {};
+    B() : A() {};
+    virtual ~B() {};
 };

 BOOST_SERIALIZATION_SHARED_PTR(B)
@@ -81,7 +82,7 @@ void display(boost::shared_ptr<A> &spa, boost::shared_ptr<A> &spa1)
    std::cout << "unique element count = " << A::count << std::endl;
 }

-int main(int argc, char *argv[])
+int main(int /* argc */, char * /*argv*/[])
 {
    std::string filename(boost::archive::tmpdir());
    filename += "/testfile";
@@ -0,0 +1,75 @@
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+//
+// demo_log.cpp
+//
+// (C) Copyright 2009 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <iostream>
+#include <cstdio>
+
+#include "demo_gps.hpp"
+#include "simple_log_archive.hpp"
+
+int main(int argc, char *argv[])
+{
+    // make the schedule
+    bus_schedule schedule;
+
+    // fill in the data
+    // make a few stops
+    bus_stop *bs0 = new bus_stop_corner(
+        gps_position(34, 135, 52.560f),
+        gps_position(134, 22, 78.30f),
+        "24th Street", "10th Avenue"
+    );
+    bus_stop *bs1 = new bus_stop_corner(
+        gps_position(35, 137, 23.456f),
+        gps_position(133, 35, 54.12f),
+        "State street", "Cathedral Vista Lane"
+    );
+    bus_stop *bs2 = new bus_stop_destination(
+        gps_position(35, 136, 15.456f),
+        gps_position(133, 32, 15.300f),
+        "White House"
+    );
+    bus_stop *bs3 = new bus_stop_destination(
+        gps_position(35, 134, 48.789f),
+        gps_position(133, 32, 16.230f),
+        "Lincoln Memorial"
+    );
+
+    // make a route
+    bus_route route0;
+    route0.append(bs0);
+    route0.append(bs1);
+    route0.append(bs2);
+
+    // add trips to schedule
+    schedule.append("bob", 6, 24, &route0);
+    schedule.append("bob", 9, 57, &route0);
+    schedule.append("alice", 11, 02, &route0);
+
+    // make another route
+    bus_route route1;
+    route1.append(bs3);
+    route1.append(bs2);
+    route1.append(bs1);
+
+    // add trips to schedule
+    schedule.append("ted", 7, 17, &route1);
+    schedule.append("ted", 9, 38, &route1);
+    schedule.append("alice", 11, 47, &route1);
+
+    // display the complete schedule
+    simple_log_archive log(std::cout);
+    log << schedule;
+
+    delete bs0;
+    delete bs1;
+    delete bs2;
+    delete bs3;
+    return 0;
+}
@@ -0,0 +1,94 @@
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+//
+// demo_trivial_archive.cpp
+//
+// (C) Copyright 2009 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <cstddef> // std::size_t
+#include <boost/mpl/bool.hpp>
+
+/////////////////////////////////////////////////////////////////////////
+// class trivial_oarchive
+class trivial_oarchive {
+
+public:
+    //////////////////////////////////////////////////////////
+    // public interface used by programs that use the
+    // serialization library
+    typedef boost::mpl::bool_<true> is_saving;
+    typedef boost::mpl::bool_<false> is_loading;
+    template<class T> void register_type(){}
+    template<class T> trivial_oarchive & operator<<(const T & t){
+        return *this;
+    }
+    template<class T> trivial_oarchive & operator&(const T & t){
+        return *this << t;
+    }
+    void save_binary(void *address, std::size_t count){};
+};
+
+#include "demo_gps.hpp"
+
+int main(int argc, char *argv[])
+{
+    // make the schedule
+    bus_schedule schedule;
+
+    // fill in the data
+    // make a few stops
+    bus_stop *bs0 = new bus_stop_corner(
+        gps_position(34, 135, 52.560f),
+        gps_position(134, 22, 78.30f),
+        "24th Street", "10th Avenue"
+    );
+    bus_stop *bs1 = new bus_stop_corner(
+        gps_position(35, 137, 23.456f),
+        gps_position(133, 35, 54.12f),
+        "State street", "Cathedral Vista Lane"
+    );
+    bus_stop *bs2 = new bus_stop_destination(
+        gps_position(35, 136, 15.456f),
+        gps_position(133, 32, 15.300f),
+        "White House"
+    );
+    bus_stop *bs3 = new bus_stop_destination(
+        gps_position(35, 134, 48.789f),
+        gps_position(133, 32, 16.230f),
+        "Lincoln Memorial"
+    );
+
+    // make a route
+    bus_route route0;
+    route0.append(bs0);
+    route0.append(bs1);
+    route0.append(bs2);
+
+    // add trips to schedule
+    schedule.append("bob", 6, 24, &route0);
+    schedule.append("bob", 9, 57, &route0);
+    schedule.append("alice", 11, 02, &route0);
+
+    // make another route
+    bus_route route1;
+    route1.append(bs3);
+    route1.append(bs2);
+    route1.append(bs1);
+
+    // add trips to schedule
+    schedule.append("ted", 7, 17, &route1);
+    schedule.append("ted", 9, 38, &route1);
+    schedule.append("alice", 11, 47, &route1);
+
+    // display the complete schedule
+    trivial_oarchive ta;
+    ta << schedule;
+
+    delete bs0;
+    delete bs1;
+    delete bs2;
+    delete bs3;
+    return 0;
+}
@@ -15,7 +15,7 @@
 #include <cstdio> // remove
 #include <boost/config.hpp>
 #if defined(BOOST_NO_STDC_NAMESPACE)
-namespace std{ 
+namespace std{
    using ::remove;
 }
 #endif
@@ -47,7 +47,7 @@ restore_schedule(bus_schedule &s, const char * filename)
 }

 int main(int argc, char *argv[])
-{   
+{
    // make the schedule
    bus_schedule original_schedule;

@@ -74,7 +74,7 @@ int main(int argc, char *argv[])
        "Lincoln Memorial"
    );

-    // make a  routes
+    // make a route
    bus_route route0;
    route0.append(bs0);
    route0.append(bs1);
@@ -85,7 +85,7 @@ int main(int argc, char *argv[])
    original_schedule.append("bob", 9, 57, &route0);
    original_schedule.append("alice", 11, 02, &route0);

-    // make aother routes
+    // make another route
    bus_route route1;
    route1.append(bs3);
    route1.append(bs2);
@@ -99,7 +99,7 @@ int main(int argc, char *argv[])
    // display the complete schedule
    std::cout << "original schedule";
    std::cout << original_schedule;
-    
+
    std::string filename(boost::archive::tmpdir());
    filename += "/demo.xml";

@@ -107,7 +107,7 @@ int main(int argc, char *argv[])
    save_schedule(original_schedule, filename.c_str());

    // ... some time later
-    // make  a new schedule
+    // make a new schedule
    bus_schedule new_schedule;

    restore_schedule(new_schedule, filename.c_str());
@@ -0,0 +1,284 @@
+#ifndef BOOST_SERIALIZATION_EXAMPLE_DEMO_XML_HPP
+#define BOOST_SERIALIZATION_EXAMPLE_DEMO_XML_HPP
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+//
+// demo_xml.hpp
+//
+// (C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+
+#include <string>
+#include <iomanip>
+#include <iostream>
+#include <fstream>
+
+#include <boost/serialization/nvp.hpp>
+#include <boost/serialization/utility.hpp>
+#include <boost/serialization/list.hpp>
+#include <boost/serialization/version.hpp>
+
+// This illustration models the bus system of a small city.
+// This includes, multiple bus stops,  bus routes and schedules.
+// There are different kinds of stops.  Bus stops in general
+// will appear on multiple routes.  A schedule will include
+// multiple trips on the same route.
+
+/////////////////////////////////////////////////////////////
+// gps coordinate
+//
+// illustrates serialization for a simple type
+//
+class gps_position
+{
+    friend class boost::serialization::access;
+    friend std::ostream & operator<<(std::ostream &os, const gps_position &gp);
+
+    int degrees;
+    int minutes;
+    float seconds;
+
+    template<class Archive>
+    void serialize(Archive & ar, const unsigned int /* file_version */){
+        ar  & BOOST_SERIALIZATION_NVP(degrees)
+            & BOOST_SERIALIZATION_NVP(minutes)
+            & BOOST_SERIALIZATION_NVP(seconds);
+    }
+
+public:
+    // every serializable class needs a constructor
+    gps_position(){};
+    gps_position(int _d, int _m, float _s) :
+        degrees(_d), minutes(_m), seconds(_s)
+    {}
+};
+
+std::ostream & operator<<(std::ostream &os, const gps_position &gp)
+{
+    return os << ' ' << gp.degrees << (unsigned char)186 << gp.minutes << '\'' << gp.seconds << '"';
+}
+
+/////////////////////////////////////////////////////////////
+// One bus stop
+//
+// illustrates serialization of serializable members
+//
+
+class bus_stop
+{
+    friend class boost::serialization::access;
+    virtual std::string description() const = 0;
+    gps_position latitude;
+    gps_position longitude;
+
+    template<class Archive>
+    void serialize(Archive &ar, const unsigned int version)
+    {
+        ar & BOOST_SERIALIZATION_NVP(latitude);
+        ar & BOOST_SERIALIZATION_NVP(longitude);
+    }
+
+protected:
+    bus_stop(const gps_position & _lat, const gps_position & _long) :
+        latitude(_lat), longitude(_long)
+    {}
+public:
+    bus_stop(){}
+    friend std::ostream & operator<<(std::ostream &os, const bus_stop &gp);
+    virtual ~bus_stop(){}
+};
+
+BOOST_IS_ABSTRACT(bus_stop)
+
+std::ostream & operator<<(std::ostream &os, const bus_stop &bs)
+{
+    return os << bs.latitude << bs.longitude << ' ' << bs.description();
+}
+
+/////////////////////////////////////////////////////////////
+// Several kinds of bus stops
+//
+// illustrates serialization of derived types
+//
+class bus_stop_corner : public bus_stop
+{
+    friend class boost::serialization::access;
+    std::string street1;
+    std::string street2;
+    virtual std::string description() const
+    {
+        return street1 + " and " + street2;
+    }
+    template<class Archive>
+    void serialize(Archive &ar, const unsigned int version)
+    {
+        // save/load base class information
+        ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(bus_stop);
+        ar & BOOST_SERIALIZATION_NVP(street1);
+        ar & BOOST_SERIALIZATION_NVP(street2);
+    }
+public:
+    bus_stop_corner(){}
+    bus_stop_corner(const gps_position & _lat, const gps_position & _long,
+        const std::string & _s1, const std::string & _s2
+    ) :
+        bus_stop(_lat, _long), street1(_s1), street2(_s2)
+    {
+    }
+};
+
+class bus_stop_destination : public bus_stop
+{
+    friend class boost::serialization::access;
+    std::string name;
+    virtual std::string description() const
+    {
+        return name;
+    }
+    template<class Archive>
+    void serialize(Archive &ar, const unsigned int version)
+    {
+        ar  & BOOST_SERIALIZATION_BASE_OBJECT_NVP(bus_stop)
+            & BOOST_SERIALIZATION_NVP(name);
+    }
+public:
+    bus_stop_destination(){}
+    bus_stop_destination(
+        const gps_position & _lat, const gps_position & _long, const std::string & _name
+    ) :
+        bus_stop(_lat, _long), name(_name)
+    {
+    }
+};
+
+/////////////////////////////////////////////////////////////
+// a bus route is a collection of bus stops
+//
+// illustrates serialization of STL collection templates.
+//
+// illustrates serialization of polymorphic pointer (bus stop *);
+//
+// illustrates storage and recovery of shared pointers is correct
+// and efficient.  That is objects pointed to by more than one
+// pointer are stored only once.  In such cases only one such
+// object is restored and pointers are restored to point to it
+//
+class bus_route
+{
+    friend class boost::serialization::access;
+    friend std::ostream & operator<<(std::ostream &os, const bus_route &br);
+    typedef bus_stop * bus_stop_pointer;
+    std::list<bus_stop_pointer> stops;
+    template<class Archive>
+    void serialize(Archive &ar, const unsigned int version)
+    {
+        // in this program, these classes are never serialized directly but rather
+        // through a pointer to the base class bus_stop. So we need a way to be
+        // sure that the archive contains information about these derived classes.
+        //ar.template register_type<bus_stop_corner>();
+        ar.register_type(static_cast<bus_stop_corner *>(NULL));
+        //ar.template register_type<bus_stop_destination>();
+        ar.register_type(static_cast<bus_stop_destination *>(NULL));
+        // serialization of stl collections is already defined
+        // in the header
+        ar & BOOST_SERIALIZATION_NVP(stops);
+    }
+public:
+    bus_route(){}
+    void append(bus_stop *_bs)
+    {
+        stops.insert(stops.end(), _bs);
+    }
+};
+std::ostream & operator<<(std::ostream &os, const bus_route &br)
+{
+    std::list<bus_stop *>::const_iterator it;
+    // note: we're displaying the pointer to permit verification
+    // that duplicated pointers are properly restored.
+    for(it = br.stops.begin(); it != br.stops.end(); it++){
+        os << '\n' << std::hex << "0x" << *it << std::dec << ' ' << **it;
+    }
+    return os;
+}
+
+/////////////////////////////////////////////////////////////
+// a bus schedule is a collection of routes each with a starting time
+//
+// Illustrates serialization of STL objects(pair) in a non-intrusive way.
+// See definition of operator<< <pair<F, S> >(ar, pair)
+//
+// illustrates nesting of serializable classes
+//
+// illustrates use of version number to automatically grandfather older
+// versions of the same class.
+
+class bus_schedule
+{
+    friend class boost::serialization::access;
+    friend std::ostream & operator<<(std::ostream &os, const bus_schedule &bs);
+    template<class Archive>
+    void serialize(Archive &ar, const unsigned int version)
+    {
+        ar & BOOST_SERIALIZATION_NVP(schedule);
+    }
+    // note: this structure was made public. because the friend declarations
+    // didn't seem to work as expected.
+public:
+    struct trip_info
+    {
+        template<class Archive>
+        void serialize(Archive &ar, const unsigned int file_version)
+        {
+            // in versions 2 or later
+            if(file_version >= 2)
+                // read the drivers name
+                ar & BOOST_SERIALIZATION_NVP(driver);
+            // all versions have the following info
+            ar  & BOOST_SERIALIZATION_NVP(hour)
+                & BOOST_SERIALIZATION_NVP(minute);
+        }
+
+        // starting time
+        int hour;
+        int minute;
+        // only after system shipped was the driver's name added to the class
+        std::string driver;
+
+        trip_info(){}
+        trip_info(int _h, int _m, const std::string &_d) :
+            hour(_h), minute(_m), driver(_d)
+        {}
+        ~trip_info(){
+        }
+    };
+//  friend std::ostream & operator<<(std::ostream &os, const trip_info &ti);
+private:
+    std::list<std::pair<trip_info, bus_route *> > schedule;
+public:
+    void append(const std::string &_d, int _h, int _m, bus_route *_br)
+    {
+        schedule.insert(schedule.end(), std::make_pair(trip_info(_h, _m, _d), _br));
+    }
+    bus_schedule(){}
+};
+
+BOOST_CLASS_VERSION(bus_schedule::trip_info, 3)
+BOOST_CLASS_VERSION(bus_schedule, 2)
+
+std::ostream & operator<<(std::ostream &os, const bus_schedule::trip_info &ti)
+{
+    return os << '\n' << ti.hour << ':' << ti.minute << ' ' << ti.driver << ' ';
+}
+std::ostream & operator<<(std::ostream &os, const bus_schedule &bs)
+{
+    std::list<std::pair<bus_schedule::trip_info, bus_route *> >::const_iterator it;
+    for(it = bs.schedule.begin(); it != bs.schedule.end(); it++){
+        os << it->first << *(it->second);
+    }
+    return os;
+}
+
+#endif // BOOST_SERIALIZATION_EXAMPLE_DEMO_XML_HPP
@@ -28,7 +28,7 @@ restore_schedule(bus_schedule &s, const char * filename)
 }

 int main(int argc, char *argv[])
-{   
+{
    // make  a new schedule
    bus_schedule new_schedule;

@@ -24,7 +24,7 @@ void save_schedule(const bus_schedule &s, const char * filename){
 }

 int main(int argc, char *argv[])
-{   
+{
    // make the schedule
    bus_schedule original_schedule;

@@ -51,7 +51,7 @@ int main(int argc, char *argv[])
        "Lincoln Memorial"
    );

-    // make a  routes
+    // make a route
    bus_route route0;
    route0.append(bs0);
    route0.append(bs1);
@@ -62,7 +62,7 @@ int main(int argc, char *argv[])
    original_schedule.append("bob", 9, 57, &route0);
    original_schedule.append("alice", 11, 02, &route0);

-    // make aother routes
+    // make an other route
    bus_route route1;
    route1.append(bs3);
    route1.append(bs2);
@@ -76,7 +76,7 @@ int main(int argc, char *argv[])
    // display the complete schedule
    std::cout << "original schedule";
    std::cout << original_schedule;
-    
+
    std::string filename(boost::archive::tmpdir());
    filename += "/demo_save.xml";

@@ -0,0 +1,37 @@
+#include <fstream>
+#include <ios>
+#include <iostream>
+#include <boost/integer_traits.hpp>
+#include <boost/archive/binary_iarchive.hpp>
+
+void usage(const char * program_name){
+    std::cout << "usage:";
+    std::cout << program_name << " filename" << std::endl;
+}
+
+int main(int argc, char *argv[]){
+    if(argc != 2){
+        std::cout << "invalid number of arguments" << std::endl;
+        usage(argv[0]);
+        return 1;
+    }
+    std::filebuf fb;
+    fb.open(
+        argv[1],
+        std::ios_base::binary | std::ios_base::in | std::ios_base::out
+    );
+    if(!fb.is_open()){
+        std::cout << argv[1] <<  " failed to open" << std::endl;
+        return 1;
+    }
+    boost::archive::binary_iarchive ia(fb);
+    boost::archive::library_version_type lvt = ia.get_library_version();
+    if(boost::archive::library_version_type(6) != lvt){
+        std::cout << "library version not equal to six" << std::endl;
+        return 1;
+    }
+    lvt = boost::archive::library_version_type(7);
+    fb.pubseekpos(26, std::ios_base::out);
+    fb.sputn(reinterpret_cast<const char *>(& lvt), sizeof(lvt));
+    fb.close();
+}
@@ -0,0 +1,32 @@
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// log_archive.cpp:
+
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#if (defined _MSC_VER) && (_MSC_VER == 1200)
+#  pragma warning (disable : 4786) // too long name, harmless warning
+#endif
+
+//#define BOOST_ARCHIVE_SOURCE
+#include "log_archive.hpp"
+#include <boost/archive/detail/archive_serializer_map.hpp>
+
+// explicitly instantiate for this type of xml stream
+#include <boost/archive/impl/archive_serializer_map.ipp>
+#include <boost/archive/impl/basic_xml_oarchive.ipp>
+#include <boost/archive/impl/xml_oarchive_impl.ipp>
+
+namespace boost {
+namespace archive {
+
+template class detail::archive_serializer_map<log_archive>;
+template class basic_xml_oarchive<log_archive> ;
+template class xml_oarchive_impl<log_archive> ;
+
+} // namespace archive
+} // namespace boost
@@ -0,0 +1,81 @@
+#ifndef LOG_ARCHIVE_HPP
+#define LOG_ARCHIVE_HPP
+
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// log_archive.hpp
+
+// (C) Copyright 2010 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#include <boost/archive/xml_oarchive.hpp>
+
+namespace boost {
+    namespace archive {
+        namespace detail {
+            template<class Archive> class interface_oarchive;
+        } // namespace detail
+    } // namespace archive
+} // boost
+
+/////////////////////////////////////////////////////////////////////////
+// log data to an output stream.  This illustrates a simpler implementation
+// of text output which is useful for getting a formatted display of
+// any serializable class.  Intended to be useful as a debugging aid.
+class log_archive :
+    /* protected ? */
+    public boost::archive::xml_oarchive_impl<log_archive>
+{
+    typedef boost::archive::xml_oarchive_impl<log_archive> base;
+    // give serialization implementation access to this class
+    friend class boost::archive::detail::interface_oarchive<log_archive>;
+    friend class boost::archive::basic_xml_oarchive<log_archive>;
+    friend class boost::archive::save_access;
+
+    /////////////////////////////////////////////////////////////////////
+    // Override functions defined in basic_xml_oarchive
+
+    // Anything not an attribute and not a name-value pair is an
+    // error and should be trapped here.
+    template<class T>
+    void save_override(T & t){
+        // make it a name-value pair and pass it on.
+        // this permits this to be used even with data types which
+        // are not wrapped with the name
+        base::save_override(boost::serialization::make_nvp(NULL, t));
+    }
+    template<class T>
+    void save_override(const boost::serialization::nvp< T > & t){
+        // this is here to remove the "const" requirement.  Since
+        // this class is to be used only for output, it's not required.
+        base::save_override(t);
+    }
+    // specific overrides for attributes - not name value pairs so we
+    // want to trap them before the above "fall through"
+    // since we don't want to see these in the output - make them no-ops.
+    void save_override(const boost::archive::object_id_type & t){}
+    void save_override(const boost::archive::object_reference_type & t){}
+    void save_override(const boost::archive::version_type & t){}
+    void save_override(const boost::archive::class_id_type & t){}
+    void save_override(const boost::archive::class_id_optional_type & t){}
+    void save_override(const boost::archive::class_id_reference_type & t){}
+    void save_override(const boost::archive::class_name_type & t){}
+    void save_override(const boost::archive::tracking_type & t){}
+public:
+    log_archive(std::ostream & os, unsigned int flags = 0) :
+        boost::archive::xml_oarchive_impl<log_archive>(
+            os,
+            flags | boost::archive::no_header
+        )
+    {}
+};
+
+#endif // LOG_ARCHIVE_HPP
@@ -0,0 +1,34 @@
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// polymorphic_portable_binary_iarchive.cpp
+
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#include <istream>
+
+#define BOOST_ARCHIVE_SOURCE
+#include "polymorphic_portable_binary_iarchive.hpp"
+
+// explicitly instantiate for this type of text stream
+#include <boost/archive/impl/basic_binary_iarchive.ipp>
+#include <boost/archive/impl/archive_pointer_iserializer.ipp>
+#include <boost/archive/impl/basic_binary_iprimitive.ipp>
+
+namespace boost {
+namespace archive {
+
+template class binary_iarchive_impl<
+    polymorphic_portable_binary_iarchive,
+    std::istream::char_type,
+    std::istream::traits_type
+>;
+template class detail::archive_pointer_iserializer<
+    polymorphic_portable_binary_iarchive
+> ;
+
+} // namespace archive
+} // namespace boost
@@ -0,0 +1,35 @@
+#ifndef BOOST_ARCHIVE_POLYMORPHIC_PORTABLE_BINARY_IARCHIVE_HPP
+#define BOOST_ARCHIVE_POLYMORPHIC_PORTABLE_BINARY_IARCHIVE_HPP
+
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// polymorphic_portable_binary_iarchive.hpp
+
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#include <boost/archive/detail/polymorphic_iarchive_dispatch.hpp>
+#include "portable_binary_iarchive.hpp"
+
+typedef boost::archive::detail::polymorphic_iarchive_dispatch<
+    portable_binary_iarchive
+> polymorphic_portable_binary_iarchive;
+
+#include <boost/version.hpp>
+#if BOOST_VERSION > 103401
+    // required by export
+    BOOST_SERIALIZATION_REGISTER_ARCHIVE(
+        polymorphic_portable_binary_iarchive
+    )
+#endif
+
+#endif // BOOST_ARCHIVE_POLYMORPHIC_PORTABLE_BINARY_OARCHIVE_HPP
+
@@ -0,0 +1,35 @@
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// polymorphic_portable_binary_oarchive.cpp
+
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#include <ostream>
+
+#define BOOST_ARCHIVE_SOURCE
+#include "polymorphic_portable_binary_oarchive.hpp"
+
+// explicitly instantiate for this type of text stream
+#include <boost/archive/impl/basic_binary_oarchive.ipp>
+#include <boost/archive/impl/archive_pointer_oserializer.ipp>
+#include <boost/archive/impl/basic_binary_oprimitive.ipp>
+
+namespace boost {
+namespace archive {
+
+// explicitly instantiate for this type of binary stream
+template class binary_oarchive_impl<
+    polymorphic_portable_binary_oarchive,
+    std::ostream::char_type,
+    std::ostream::traits_type
+>;
+template class detail::archive_pointer_oserializer<
+    polymorphic_portable_binary_oarchive
+> ;
+
+} // namespace archive
+} // namespace boost
@@ -0,0 +1,34 @@
+#ifndef BOOST_ARCHIVE_POLYMORPHIC_PORTABLE_BINARY_OARCHIVE_HPP
+#define BOOST_ARCHIVE_POLYMORPHIC_PORTABLE_BINARY_OARCHIVE_HPP
+
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// polymorphic_portable_binary_oarchive.hpp
+
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#include <boost/archive/detail/polymorphic_oarchive_dispatch.hpp>
+#include "portable_binary_oarchive.hpp"
+
+typedef boost::archive::detail::polymorphic_oarchive_dispatch<
+    portable_binary_oarchive
+ > polymorphic_portable_binary_oarchive;
+
+#include <boost/version.hpp>
+#if BOOST_VERSION > 103401
+    // required by export
+    BOOST_SERIALIZATION_REGISTER_ARCHIVE(
+        polymorphic_portable_binary_oarchive
+    )
+#endif
+
+#endif // BOOST_ARCHIVE_POLYMORPHIC_PORTABLE_BINARY_OARCHIVE_HPP
@@ -0,0 +1,46 @@
+#ifndef PORTABLE_BINARY_ARCHIVE_HPP
+#define PORTABLE_BINARY_ARCHIVE_HPP
+
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+#include <boost/config.hpp>
+#include <boost/cstdint.hpp>
+#include <boost/static_assert.hpp>
+
+#include <climits>
+#if CHAR_BIT != 8
+#error This code assumes an eight-bit byte.
+#endif
+
+#include <boost/archive/basic_archive.hpp>
+#include <boost/predef/other/endian.h>
+
+enum portable_binary_archive_flags {
+    endian_big        = 0x4000,
+    endian_little     = 0x8000
+};
+
+//#if ( endian_big <= boost::archive::flags_last )
+//#error archive flags conflict
+//#endif
+
+inline void
+reverse_bytes(char size, char *address){
+    char * first = address;
+    char * last = first + size - 1;
+    for(;first < last;++first, --last){
+        char x = *last;
+        *last = *first;
+        *first = x;
+    }
+}
+
+#endif // PORTABLE_BINARY_ARCHIVE_HPP
@@ -0,0 +1,131 @@
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// portable_binary_iarchive.cpp
+
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#include <istream>
+#include <string>
+
+#include <boost/predef/other/endian.h>
+#include <boost/serialization/throw_exception.hpp>
+#include <boost/archive/archive_exception.hpp>
+
+#include "portable_binary_iarchive.hpp"
+
+void
+portable_binary_iarchive::load_impl(boost::intmax_t & l, char maxsize){
+    char size;
+    l = 0;
+    this->primitive_base_t::load(size);
+
+    if(0 == size){
+        return;
+    }
+
+    bool negative = (size < 0);
+    if(negative)
+        size = -size;
+
+    if(size > maxsize)
+        boost::serialization::throw_exception(
+            portable_binary_iarchive_exception()
+        );
+
+    char * cptr = reinterpret_cast<char *>(& l);
+    #if BOOST_ENDIAN_BIG_BYTE
+        cptr += (sizeof(boost::intmax_t) - size);
+    #endif
+    this->primitive_base_t::load_binary(cptr, size);
+
+    #if BOOST_ENDIAN_BIG_BYTE
+        if(m_flags & endian_little)
+    #else
+        if(m_flags & endian_big)
+    #endif
+    reverse_bytes(size, cptr);
+
+    if(negative)
+        l = -l;
+}
+
+void
+portable_binary_iarchive::load_override(
+    boost::archive::class_name_type & t
+){
+    std::string cn;
+    cn.reserve(BOOST_SERIALIZATION_MAX_KEY_SIZE);
+    load_override(cn);
+    if(cn.size() > (BOOST_SERIALIZATION_MAX_KEY_SIZE - 1))
+        boost::serialization::throw_exception(
+            boost::archive::archive_exception(
+                boost::archive::archive_exception::invalid_class_name)
+            );
+    std::memcpy(t, cn.data(), cn.size());
+    // borland tweak
+    t.t[cn.size()] = '\0';
+}
+
+void
+portable_binary_iarchive::init(unsigned int flags){
+    if(0 == (flags & boost::archive::no_header)){
+        // read signature in an archive version independent manner
+        std::string file_signature;
+        * this >> file_signature;
+        if(file_signature != boost::archive::BOOST_ARCHIVE_SIGNATURE())
+            boost::serialization::throw_exception(
+                boost::archive::archive_exception(
+                    boost::archive::archive_exception::invalid_signature
+                )
+            );
+        // make sure the version of the reading archive library can
+        // support the format of the archive being read
+        boost::archive::library_version_type input_library_version;
+        * this >> input_library_version;
+
+        // extra little .t is to get around borland quirk
+        if(boost::archive::BOOST_ARCHIVE_VERSION() < input_library_version)
+            boost::serialization::throw_exception(
+                boost::archive::archive_exception(
+                    boost::archive::archive_exception::unsupported_version
+                )
+            );
+
+        #if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3205))
+        this->set_library_version(input_library_version);
+        //#else
+        //#if ! BOOST_WORKAROUND(BOOST_MSVC, <= 1200)
+        //detail::
+        //#endif
+        boost::archive::detail::basic_iarchive::set_library_version(
+            input_library_version
+        );
+        #endif
+    }
+    unsigned char x;
+    load(x);
+    m_flags = x << CHAR_BIT;
+}
+
+#include <boost/archive/impl/archive_serializer_map.ipp>
+#include <boost/archive/impl/basic_binary_iprimitive.ipp>
+
+namespace boost {
+namespace archive {
+
+namespace detail {
+    template class archive_serializer_map<portable_binary_iarchive>;
+}
+
+template class basic_binary_iprimitive<
+    portable_binary_iarchive,
+    std::istream::char_type,
+    std::istream::traits_type
+> ;
+
+} // namespace archive
+} // namespace boost
@@ -2,172 +2,203 @@
 #define PORTABLE_BINARY_IARCHIVE_HPP

 // MS compatible compilers support #pragma once
-#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+#if defined(_MSC_VER)
 # pragma once
 #endif

+#if defined(_MSC_VER)
+#pragma warning( push )
+#pragma warning( disable : 4244 )
+#endif
+
 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
 // portable_binary_iarchive.hpp

-// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
+// (C) Copyright 2002-7 Robert Ramey - http://www.rrsd.com .
 // Use, modification and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)

 //  See http://www.boost.org for updates, documentation, and revision history.

-#include <ostream>
-#include <boost/archive/binary_iarchive.hpp>
-#include <boost/detail/endian.hpp>
+#include <istream>
+#include <boost/serialization/string.hpp>
+#include <boost/serialization/item_version_type.hpp>
+#include <boost/archive/archive_exception.hpp>
+#include <boost/archive/basic_binary_iprimitive.hpp>
+#include <boost/archive/detail/common_iarchive.hpp>
+#include <boost/archive/detail/register_archive.hpp>
+
+#include "portable_binary_archive.hpp"

 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
 // exception to be thrown if integer read from archive doesn't fit
 // variable being loaded
-class portable_binary_archive_exception : 
-    public virtual boost::archive::archive_exception
+class portable_binary_iarchive_exception :
+    public boost::archive::archive_exception
 {
 public:
-    typedef enum {
-        incompatible_integer_size 
-    } exception_code;
-    portable_binary_archive_exception(exception_code c = incompatible_integer_size )
+    enum exception_code {
+        incompatible_integer_size
+    } m_exception_code ;
+    portable_binary_iarchive_exception(exception_code c = incompatible_integer_size ) :
+        boost::archive::archive_exception(boost::archive::archive_exception::other_exception),
+        m_exception_code(c)
    {}
    virtual const char *what( ) const throw( )
    {
        const char *msg = "programmer error";
-        switch(code){
+        switch(m_exception_code){
        case incompatible_integer_size:
            msg = "integer cannot be represented";
+            break;
        default:
-            boost::archive::archive_exception::what();
+            msg = boost::archive::archive_exception::what();
+            assert(false);
+            break;
        }
        return msg;
    }
 };

 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
-// "Portable" input binary archive.  This is a variation of the native binary 
-// archive. it addresses integer size and endienness so that binary archives can
-// be passed across systems. Note:floating point types not addressed here
+// "Portable" input binary archive.  It addresses integer size and endianness so
+// that binary archives can be passed across systems. Note:floating point types
+// not addressed here
 class portable_binary_iarchive :
-    // don't derive from binary_iarchive !!!
-    public boost::archive::binary_iarchive_impl<
-        portable_binary_iarchive, 
-        std::istream::char_type, 
+    public boost::archive::basic_binary_iprimitive<
+        portable_binary_iarchive,
+        std::istream::char_type,
        std::istream::traits_type
    >,
-    public boost::archive::detail::shared_ptr_helper
-{
-    typedef boost::archive::binary_iarchive_impl<
-        portable_binary_iarchive, 
-        std::istream::char_type, 
-        std::istream::traits_type
-    > archive_base_t;
+    public boost::archive::detail::common_iarchive<
+        portable_binary_iarchive
+    >
+    {
    typedef boost::archive::basic_binary_iprimitive<
-        portable_binary_iarchive, 
-        std::ostream::char_type, 
-        std::ostream::traits_type
+        portable_binary_iarchive,
+        std::istream::char_type,
+        std::istream::traits_type
    > primitive_base_t;
+    typedef boost::archive::detail::common_iarchive<
+        portable_binary_iarchive
+    > archive_base_t;
 #ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
 public:
 #else
    friend archive_base_t;
    friend primitive_base_t; // since with override load below
-    friend class boost::archive::basic_binary_iarchive<portable_binary_iarchive>;
+    friend class boost::archive::detail::interface_iarchive<
+        portable_binary_iarchive
+    >;
    friend class boost::archive::load_access;
+protected:
 #endif
-    void load_impl(long & l, char maxsize){
-        char size;
-        this->archive_base_t::load(size);
-        if(size > maxsize)
-            throw portable_binary_archive_exception() ;
-        l = 0;
-        load_binary(& l, size);
-        // we choose to use litle endian
-        #ifdef BOOST_BIG_ENDIAN
-            char * first = static_cast<char *>(static_cast<void *>(& l));
-            char * last = first + sizeof(l) - 1;
-            for(;first < last;++first, --last){
-                char x = *last;
-                *last = *first;
-                *first = x;
-            }
-        #endif
+    unsigned int m_flags;
+    void load_impl(boost::intmax_t & l, char maxsize);

-        // extend sign if necessary
-        if((l >> (size - 1) * 8) & 0x80){
-            l |= (-1 << (size * 8));
-        }
-    }
    // default fall through for any types not specified here
    template<class T>
    void load(T & t){
+        boost::intmax_t l;
+        load_impl(l, sizeof(T));
+        // use cast to avoid compile time warning
+        //t = static_cast< T >(l);
+        t = T(l);
+    }
+    void load(boost::serialization::item_version_type & t){
+        boost::intmax_t l;
+        load_impl(l, sizeof(boost::serialization::item_version_type));
+        // use cast to avoid compile time warning
+        t = boost::serialization::item_version_type(l);
+    }
+    void load(boost::archive::version_type & t){
+        boost::intmax_t l;
+        load_impl(l, sizeof(boost::archive::version_type));
+        // use cast to avoid compile time warning
+        t = boost::archive::version_type(l);
+    }
+    void load(boost::archive::class_id_type & t){
+        boost::intmax_t l;
+        load_impl(l, sizeof(boost::archive::class_id_type));
+        // use cast to avoid compile time warning
+        t = boost::archive::class_id_type(static_cast<int>(l));
+    }
+    void load(std::string & t){
        this->primitive_base_t::load(t);
    }
-    void load(unsigned short & t){
-        long l;
-        load_impl(l, sizeof(unsigned short));
-        t = l;
+    #ifndef BOOST_NO_STD_WSTRING
+    void load(std::wstring & t){
+        this->primitive_base_t::load(t);
    }
-    void load(short & t){
-        long l;
-        load_impl(l, sizeof(short));
-        t = l;
+    #endif
+    void load(float & t){
+        this->primitive_base_t::load(t);
+        // floats not supported
+        //BOOST_STATIC_ASSERT(false);
    }
-    void load(unsigned int & t){
-        long l;
-        load_impl(l, sizeof(unsigned int));
-        t = l;
+    void load(double & t){
+        this->primitive_base_t::load(t);
+        // doubles not supported
+        //BOOST_STATIC_ASSERT(false);
    }
-    void load(int & t){
-        long l;
-        load_impl(l, sizeof(int));
-        t = l;
+    void load(char & t){
+        this->primitive_base_t::load(t);
    }
-    void load(unsigned long & t){
-        long l;
-        load_impl(l, sizeof(unsigned long));
-        t = l;
+    void load(unsigned char & t){
+        this->primitive_base_t::load(t);
    }
-    void load(long & t){
-        long l;
-        load_impl(l, sizeof(long));
-        t = l;
+    typedef boost::archive::detail::common_iarchive<portable_binary_iarchive>
+        detail_common_iarchive;
+    template<class T>
+    void load_override(T & t){
+        this->detail_common_iarchive::load_override(t);
    }
+    void load_override(boost::archive::class_name_type & t);
+    // binary files don't include the optional information
+    void load_override(boost::archive::class_id_optional_type &){}
+
+    void init(unsigned int flags);
 public:
    portable_binary_iarchive(std::istream & is, unsigned flags = 0) :
-        archive_base_t(
-            is, 
-            flags | boost::archive::no_header // skip default header checking 
-        )
+        primitive_base_t(
+            * is.rdbuf(),
+            0 != (flags & boost::archive::no_codecvt)
+        ),
+        archive_base_t(flags),
+        m_flags(0)
    {
-        // use our own header checking
-        if(0 != (flags & boost::archive::no_header)){
-            this->archive_base_t::init(flags);
-            // skip the following for "portable" binary archives
-            // boost::archive::basic_binary_oprimitive<derived_t, std::ostream>::init();
-        }
+        init(flags);
+    }
+
+    portable_binary_iarchive(
+        std::basic_streambuf<
+            std::istream::char_type,
+            std::istream::traits_type
+        > & bsb,
+        unsigned int flags
+    ) :
+        primitive_base_t(
+            bsb,
+            0 != (flags & boost::archive::no_codecvt)
+        ),
+        archive_base_t(flags),
+        m_flags(0)
+    {
+        init(flags);
    }
 };

-// explicitly instantiate for this type of text stream
-#include <boost/archive/impl/basic_binary_iarchive.ipp>
-#include <boost/archive/impl/archive_pointer_iserializer.ipp>
-#include <boost/archive/impl/basic_binary_iprimitive.ipp>
-
-namespace boost {
-namespace archive {
-
-template class binary_iarchive_impl<
-    portable_binary_iarchive, 
-    std::istream::char_type, 
-    std::istream::traits_type
->;
-template class detail::archive_pointer_iserializer<portable_binary_iarchive> ;
-
-} // namespace archive
-} // namespace boost
+// required by export in boost version > 1.34
+#ifdef BOOST_SERIALIZATION_REGISTER_ARCHIVE
+    BOOST_SERIALIZATION_REGISTER_ARCHIVE(portable_binary_iarchive)
+#endif

+// required by export in boost <= 1.34
 #define BOOST_ARCHIVE_CUSTOM_IARCHIVE_TYPES portable_binary_iarchive

+#if defined(_MSC_VER)
+#pragma warning( pop )
+#endif
+
 #endif // PORTABLE_BINARY_IARCHIVE_HPP
@@ -0,0 +1,98 @@
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// portable_binary_oarchive.cpp
+
+// (C) Copyright 2002-7 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#include <ostream>
+#include <boost/predef/other/endian.h>
+#include "portable_binary_oarchive.hpp"
+
+void
+portable_binary_oarchive::save_impl(
+    const boost::intmax_t l,
+    const char maxsize
+){
+    char size = 0;
+
+    if(l == 0){
+        this->primitive_base_t::save(size);
+        return;
+    }
+
+    boost::intmax_t ll;
+    bool negative = (l < 0);
+    if(negative)
+        ll = -l;
+    else
+        ll = l;
+
+    do{
+        ll >>= CHAR_BIT;
+        ++size;
+    }while(ll != 0);
+
+    this->primitive_base_t::save(
+        static_cast<char>(negative ? -size : size)
+    );
+
+    if(negative)
+        ll = -l;
+    else
+        ll = l;
+    char * cptr = reinterpret_cast<char *>(& ll);
+    #if BOOST_ENDIAN_BIG_BYTE
+        cptr += (sizeof(boost::intmax_t) - size);
+        if(m_flags & endian_little)
+            reverse_bytes(size, cptr);
+    #else
+        if(m_flags & endian_big)
+            reverse_bytes(size, cptr);
+    #endif
+    this->primitive_base_t::save_binary(cptr, size);
+}
+
+void
+portable_binary_oarchive::init(unsigned int flags) {
+    if(m_flags == (endian_big | endian_little)){
+        boost::serialization::throw_exception(
+            portable_binary_oarchive_exception()
+        );
+    }
+    if(0 == (flags & boost::archive::no_header)){
+        // write signature in an archive version independent manner
+        const std::string file_signature(
+            boost::archive::BOOST_ARCHIVE_SIGNATURE()
+        );
+        * this << file_signature;
+        // write library version
+        const boost::archive::library_version_type v(
+            boost::archive::BOOST_ARCHIVE_VERSION()
+        );
+        * this << v;
+    }
+    save(static_cast<unsigned char>(m_flags >> CHAR_BIT));
+}
+
+#include <boost/archive/impl/archive_serializer_map.ipp>
+#include <boost/archive/impl/basic_binary_oprimitive.ipp>
+
+namespace boost {
+namespace archive {
+
+namespace detail {
+    template class archive_serializer_map<portable_binary_oarchive>;
+}
+
+template class basic_binary_oprimitive<
+    portable_binary_oarchive,
+    std::ostream::char_type,
+    std::ostream::traits_type
+> ;
+
+} // namespace archive
+} // namespace boost
@@ -2,14 +2,19 @@
 #define PORTABLE_BINARY_OARCHIVE_HPP

 // MS compatible compilers support #pragma once
-#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+#if defined(_MSC_VER)
 # pragma once
 #endif

+#if defined(_MSC_VER)
+#pragma warning( push )
+#pragma warning( disable : 4244 )
+#endif
+
 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
 // portable_binary_oarchive.hpp

-// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
 // Use, modification and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
@@ -17,75 +22,75 @@
 //  See http://www.boost.org for updates, documentation, and revision history.

 #include <ostream>
+#include <boost/serialization/string.hpp>
 #include <boost/archive/archive_exception.hpp>
-#include <boost/archive/binary_oarchive.hpp>
-#include <boost/detail/endian.hpp>
+#include <boost/archive/basic_binary_oprimitive.hpp>
+#include <boost/archive/detail/common_oarchive.hpp>
+#include <boost/archive/detail/register_archive.hpp>
+
+#include "portable_binary_archive.hpp"

 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
-// "Portable" output binary archive.  This is a variation of the native binary 
-// archive. it addresses integer size and endienness so that binary archives can
+// exception to be thrown if integer read from archive doesn't fit
+// variable being loaded
+class portable_binary_oarchive_exception :
+    public boost::archive::archive_exception
+{
+public:
+    typedef enum {
+        invalid_flags
+    } exception_code;
+    portable_binary_oarchive_exception(exception_code c = invalid_flags )
+    {}
+    virtual const char *what( ) const throw( )
+    {
+        const char *msg = "programmer error";
+        switch(code){
+        case invalid_flags:
+            msg = "cannot be both big and little endian";
+        default:
+            boost::archive::archive_exception::what();
+        }
+        return msg;
+    }
+};
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// "Portable" output binary archive.  This is a variation of the native binary
+// archive. it addresses integer size and endianness so that binary archives can
 // be passed across systems. Note:floating point types not addressed here

 class portable_binary_oarchive :
-    // don't derive from binary_oarchive !!!
-    public boost::archive::binary_oarchive_impl<
-        portable_binary_oarchive, 
-        std::ostream::char_type, 
+    public boost::archive::basic_binary_oprimitive<
+        portable_binary_oarchive,
+        std::ostream::char_type,
        std::ostream::traits_type
+    >,
+    public boost::archive::detail::common_oarchive<
+        portable_binary_oarchive
    >
 {
-    typedef boost::archive::binary_oarchive_impl<
-        portable_binary_oarchive, 
-        std::ostream::char_type, 
-        std::ostream::traits_type
-    > archive_base_t;
    typedef boost::archive::basic_binary_oprimitive<
-        portable_binary_oarchive, 
-        std::ostream::char_type, 
+        portable_binary_oarchive,
+        std::ostream::char_type,
        std::ostream::traits_type
    > primitive_base_t;
+    typedef boost::archive::detail::common_oarchive<
+        portable_binary_oarchive
+    > archive_base_t;
 #ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
 public:
 #else
    friend archive_base_t;
    friend primitive_base_t; // since with override save below
-    friend class boost::archive::basic_binary_oarchive<portable_binary_oarchive>;
+    friend class boost::archive::detail::interface_oarchive<
+        portable_binary_oarchive
+    >;
    friend class boost::archive::save_access;
+protected:
 #endif
-    void save_impl(const long l){
-        long ll = l;
-        char size = 0;
-        if(l < 0){
-            // make sure that enough of data is output
-            // to include a high order bit indicating the sign
-            char x;
-            do{
-                x = ll;
-                ll >>= 8;
-                ++size;
-            }while(ll != -1 && x < 0);
-        }
-        else{
-            do{
-                ll >>= 8;
-                ++size;
-            }while(ll != 0);
-        }
-
-        this->archive_base_t::save(size);
-
-        // we choose to use litle endian
-        #ifdef BOOST_BIG_ENDIAN
-            char * first = static_cast<char *>(static_cast<void *>(& l));
-            char * last = first + sizeof(l) - 1;
-            for(;first < last;++first, --last){
-                char x = *last;
-                *last = *first;
-                *first = x;
-            }
-        #endif
-        save_binary(& l, size);
-    }
+    unsigned int m_flags;
+    void save_impl(const boost::intmax_t l, const char maxsize);
    // add base class to the places considered when matching
    // save function to a specific set of arguments.  Note, this didn't
    // work on my MSVC 7.0 system so we use the sure-fire method below
@@ -94,60 +99,93 @@ public:
    // default fall through for any types not specified here
    template<class T>
    void save(const T & t){
+        save_impl(t, sizeof(T));
+    }
+    void save(const std::string & t){
        this->primitive_base_t::save(t);
    }
-    void save(const short  t){
-        save_impl(t);
+    #ifndef BOOST_NO_STD_WSTRING
+    void save(const std::wstring & t){
+        this->primitive_base_t::save(t);
    }
-    void save(const unsigned short t){
-        save_impl(t);
+    #endif
+    void save(const float & t){
+        this->primitive_base_t::save(t);
+        // floats not supported
+        //BOOST_STATIC_ASSERT(false);
    }
-    void save(const unsigned int t){
-        save_impl(t);
+    void save(const double & t){
+        this->primitive_base_t::save(t);
+        // doubles not supported
+        //BOOST_STATIC_ASSERT(false);
    }
-    void save(const int t){
-        save_impl(t);
+    void save(const char & t){
+        this->primitive_base_t::save(t);
    }
-    void save(const unsigned long t){
-        save_impl(t);
+    void save(const unsigned char & t){
+        this->primitive_base_t::save(t);
    }
-    void save(const long t){
-        save_impl(t);
+
+    // default processing - kick back to base class.  Note the
+    // extra stuff to get it passed borland compilers
+    typedef boost::archive::detail::common_oarchive<portable_binary_oarchive>
+        detail_common_oarchive;
+    template<class T>
+    void save_override(T & t){
+        this->detail_common_oarchive::save_override(t);
    }
+    // explicitly convert to char * to avoid compile ambiguities
+    void save_override(const boost::archive::class_name_type & t){
+        const std::string s(t);
+        * this << s;
+    }
+    // binary files don't include the optional information
+    void save_override(
+        const boost::archive::class_id_optional_type & /* t */
+    ){}
+
+    void init(unsigned int flags);
 public:
    portable_binary_oarchive(std::ostream & os, unsigned flags = 0) :
-        archive_base_t(
-            os, 
-            flags | boost::archive::no_header // skip default header checking 
-        )
+        primitive_base_t(
+            * os.rdbuf(),
+            0 != (flags & boost::archive::no_codecvt)
+        ),
+        archive_base_t(flags),
+        m_flags(flags & (endian_big | endian_little))
    {
-        // use our own header checking
-        if(0 != (flags & boost::archive::no_header)){
-            this->archive_base_t::init(flags);
-            // skip the following for "portable" binary archives
-            // boost::archive::basic_binary_iprimitive<derived_t, std::ostream>::init();
-        }
+        init(flags);
+    }
+
+    portable_binary_oarchive(
+        std::basic_streambuf<
+            std::ostream::char_type,
+            std::ostream::traits_type
+        > & bsb,
+        unsigned int flags
+    ) :
+        primitive_base_t(
+            bsb,
+            0 != (flags & boost::archive::no_codecvt)
+        ),
+        archive_base_t(flags),
+        m_flags(0)
+    {
+        init(flags);
    }
 };

-#include <boost/archive/impl/basic_binary_oarchive.ipp>
-#include <boost/archive/impl/archive_pointer_oserializer.ipp>
-#include <boost/archive/impl/basic_binary_oprimitive.ipp>

-namespace boost {
-namespace archive {
-
-// explicitly instantiate for this type of binary stream
-template class binary_oarchive_impl<
-    portable_binary_oarchive, 
-    std::ostream::char_type, 
-    std::ostream::traits_type
->;
-template class detail::archive_pointer_oserializer<portable_binary_oarchive> ;
-
-} // namespace archive
-} // namespace boost
+// required by export in boost version > 1.34
+#ifdef BOOST_SERIALIZATION_REGISTER_ARCHIVE
+    BOOST_SERIALIZATION_REGISTER_ARCHIVE(portable_binary_oarchive)
+#endif

+// required by export in boost <= 1.34
 #define BOOST_ARCHIVE_CUSTOM_OARCHIVE_TYPES portable_binary_oarchive

+#if defined(_MSC_VER)
+#pragma warning( pop )
+#endif
+
 #endif // PORTABLE_BINARY_OARCHIVE_HPP
@@ -0,0 +1,167 @@
+#ifndef BOOST_SIMPLE_LOG_ARCHIVE_HPP
+#define BOOST_SIMPLE_LOG_ARCHIVE_HPP
+
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// simple_log_archive.hpp
+
+// (C) Copyright 2010 Robert Ramey - http://www.rrsd.com .
+// Use, modification and distribution is subject to the Boost Software
+// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+
+#include <ostream>
+#include <cstddef> // std::size_t
+
+#include <boost/config.hpp>
+#if defined(BOOST_NO_STDC_NAMESPACE)
+namespace std{
+    using ::size_t;
+} // namespace std
+#endif
+
+#include <boost/type_traits/is_enum.hpp>
+#include <boost/mpl/bool.hpp>
+#include <boost/mpl/eval_if.hpp>
+#include <boost/mpl/int.hpp>
+#include <boost/mpl/equal_to.hpp>
+#include <boost/serialization/nvp.hpp>
+#include <boost/serialization/array.hpp>
+#include <boost/serialization/string.hpp>
+#include <boost/serialization/access.hpp>
+
+/////////////////////////////////////////////////////////////////////////
+// log data to an output stream.  This illustrates a simpler implementation
+// of text output which is useful for getting a formatted display of
+// any serializable class.  Intended to be useful as a debugging aid.
+class simple_log_archive {
+    std::ostream & m_os;
+    unsigned int m_depth;
+
+    template<class Archive>
+    struct save_enum_type {
+        template<class T>
+        static void invoke(Archive &ar, const T &t){
+            ar.m_os << static_cast<int>(t);
+        }
+    };
+    template<class Archive>
+    struct save_primitive {
+        template<class T>
+        static void invoke(Archive & ar, const T & t){
+            ar.m_os << t;
+        }
+    };
+    template<class Archive>
+    struct save_only {
+        template<class T>
+        static void invoke(Archive & ar, const T & t){
+            // make sure call is routed through the highest interface that might
+            // be specialized by the user.
+            boost::serialization::serialize_adl(
+                ar,
+                const_cast<T &>(t),
+                ::boost::serialization::version< T >::value
+            );
+        }
+    };
+    template<class T>
+    void save(const T &t){
+        typedef
+            BOOST_DEDUCED_TYPENAME boost::mpl::eval_if<boost::is_enum< T >,
+                boost::mpl::identity<save_enum_type<simple_log_archive> >,
+            //else
+            BOOST_DEDUCED_TYPENAME boost::mpl::eval_if<
+                // if its primitive
+                    boost::mpl::equal_to<
+                        boost::serialization::implementation_level< T >,
+                        boost::mpl::int_<boost::serialization::primitive_type>
+                    >,
+                    boost::mpl::identity<save_primitive<simple_log_archive> >,
+            // else
+                boost::mpl::identity<save_only<simple_log_archive> >
+            > >::type typex;
+        typex::invoke(*this, t);
+    }
+    #ifndef BOOST_NO_STD_WSTRING
+    void save(const std::wstring &ws){
+        m_os << "wide string types not supported in log archive";
+    }
+    #endif
+
+public:
+    ///////////////////////////////////////////////////
+    // Implement requirements for archive concept
+
+    typedef boost::mpl::bool_<false> is_loading;
+    typedef boost::mpl::bool_<true> is_saving;
+
+    // this can be a no-op since we ignore pointer polymorphism
+    template<class T>
+    void register_type(const T * = NULL){}
+
+    unsigned int get_library_version(){
+        return 0;
+    }
+
+    void
+    save_binary(const void *address, std::size_t count){
+        m_os << "save_binary not implemented";
+    }
+
+    // the << operators
+    template<class T>
+    simple_log_archive & operator<<(T const & t){
+        m_os << ' ';
+        save(t);
+        return * this;
+    }
+    template<class T>
+    simple_log_archive & operator<<(T * const t){
+        m_os << " ->";
+        if(NULL == t)
+            m_os << " null";
+        else
+            *this << * t;
+        return * this;
+    }
+    template<class T, int N>
+    simple_log_archive & operator<<(const T (&t)[N]){
+        return *this << boost::serialization::make_array(
+            static_cast<const T *>(&t[0]),
+            N
+        );
+    }
+    template<class T>
+    simple_log_archive & operator<<(const boost::serialization::nvp< T > & t){
+        m_os << '\n'; // start line with each named object
+        // indent according to object depth
+        for(unsigned int i = 0; i < m_depth; ++i)
+            m_os << ' ';
+        ++m_depth;
+        m_os << t.name(); // output the name of the object
+        * this << t.const_value();
+        --m_depth;
+        return * this;
+    }
+
+    // the & operator
+    template<class T>
+    simple_log_archive & operator&(const T & t){
+            return * this << t;
+    }
+    ///////////////////////////////////////////////
+
+    simple_log_archive(std::ostream & os) :
+        m_os(os),
+        m_depth(0)
+    {}
+};
+
+#endif // BOOST_SIMPLE_LOG_ARCHIVE_HPP
@@ -1,55 +0,0 @@
-#ifndef BOOST_ARCHIVE_ADD_FACET_HPP
-#define BOOST_ARCHIVE_ADD_FACET_HPP
-
-// MS compatible compilers support #pragma once
-#if defined(_MSC_VER) && (_MSC_VER >= 1020)
-# pragma once
-#endif
-
-/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
-// add_facet.hpp
-
-// (C) Copyright 2003 Robert Ramey - http://www.rrsd.com . 
-// Use, modification and distribution is subject to the Boost Software
-// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-
-//  See http://www.boost.org for updates, documentation, and revision history.
-
-#include <locale>
-#include <boost/config.hpp>
-#include <boost/detail/workaround.hpp>
-
-// does STLport uses native STL for locales?
-#if (defined(__SGI_STL_PORT)&& defined(_STLP_NO_OWN_IOSTREAMS))
-// and this native STL lib is old Dinkumware (has not defined _CPPLIB_VER)
-#  if (defined(_YVALS) && !defined(__IBMCPP__)) || !defined(_CPPLIB_VER)
-#    define BOOST_ARCHIVE_OLD_DINKUMWARE_BENEATH_STLPORT
-#  endif
-#endif
-
-namespace boost { 
-namespace archive {
-
-template<class Facet>
-inline std::locale * 
-add_facet(const std::locale &l, Facet * f){
-    return
-        #if defined BOOST_ARCHIVE_OLD_DINKUMWARE_BENEATH_STLPORT 
-            // std namespace used for native locale
-            new std::locale(std::_Addfac(l, f));
-        #elif BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, == 1) // old Dinkumwar
-            // std namespace used for native locale
-            new std::locale(std::_Addfac(l, f));
-        #else
-            // standard compatible
-            new std::locale(l, f);
-        #endif
-}
-
-} // namespace archive
-} // namespace boost
-
-#undef BOOST_ARCHIVE_OLD_DINKUMWARE_BENEATH_STLPORT
-
-#endif // BOOST_ARCHIVE_ADD_FACET_HPP
@@ -2,14 +2,14 @@
 #define BOOST_ARCHIVE_ARCHIVE_EXCEPTION_HPP

 // MS compatible compilers support #pragma once
-#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+#if defined(_MSC_VER)
 # pragma once
 #endif

 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
 // archive/archive_exception.hpp:

-// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
 // Use, modification and distribution is subject to the Boost Software
 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
@@ -17,7 +17,21 @@
 //  See http://www.boost.org for updates, documentation, and revision history.

 #include <exception>
-#include <cassert>
+#include <boost/assert.hpp>
+#include <string>
+
+#include <boost/config.hpp>
+#include <boost/archive/detail/decl.hpp>
+
+// note: the only reason this is in here is that windows header
+// includes #define exception_code _exception_code (arrrgghhhh!).
+// the most expedient way to address this is be sure that this
+// header is always included whenever this header file is included.
+#if defined(BOOST_WINDOWS)
+#include <excpt.h>
+#endif
+
+#include <boost/archive/detail/abi_prefix.hpp> // must be the last header

 namespace boost {
 namespace archive {
@@ -25,91 +39,62 @@ namespace archive {
 //////////////////////////////////////////////////////////////////////
 // exceptions thrown by archives
 //
-class archive_exception : 
+class BOOST_SYMBOL_VISIBLE archive_exception :
    public virtual std::exception
 {
+private:
+    char m_buffer[128];
+protected:
+    BOOST_ARCHIVE_DECL unsigned int
+    append(unsigned int l, const char * a);
+    BOOST_ARCHIVE_DECL
+    archive_exception() BOOST_NOEXCEPT;
 public:
    typedef enum {
        no_exception,       // initialized without code
-        other_exception,    // any excepton not listed below
-        unregistered_class, // attempt to serialize a pointer of an
+        other_exception,    // any exception not listed below
+        unregistered_class, // attempt to serialize a pointer of
                            // an unregistered class
        invalid_signature,  // first line of archive does not contain
                            // expected string
        unsupported_version,// archive created with library version
                            // subsequent to this one
        pointer_conflict,   // an attempt has been made to directly
-                            // serialization::detail an object
-                            // after having already serialzed the same
-                            // object through a pointer.  Were this permited,
-                            // it the archive load would result in the
-                            // creation of an extra copy of the obect.
+                            // serialize an object which has
+                            // already been serialized through a pointer.
+                            // Were this permitted, the archive load would result
+                            // in the creation of an extra copy of the object.
        incompatible_native_format, // attempt to read native binary format
                            // on incompatible platform
        array_size_too_short,// array being loaded doesn't fit in array allocated
-        stream_error,       // i/o error on stream
+        input_stream_error, // error on input stream
        invalid_class_name, // class name greater than the maximum permitted.
                            // most likely a corrupted archive or an attempt
                            // to insert virus via buffer overrun method.
-        unregistered_cast   // base - derived relationship not registered with 
+        unregistered_cast,   // base - derived relationship not registered with
                            // void_cast_register
+        unsupported_class_version, // type saved with a version # greater than the
+                            // one used by the program.  This indicates that the program
+                            // needs to be rebuilt.
+        multiple_code_instantiation, // code for implementing serialization for some
+                            // type has been instantiated in more than one module.
+        output_stream_error // error on input stream
    } exception_code;
    exception_code code;
-    archive_exception(exception_code c) : 
-        code(c)
-    {}
-    virtual const char *what( ) const throw( )
-    {
-        const char *msg = "programming error";
-        switch(code){
-        case no_exception:
-            msg = "uninitialized exception";
-            break;
-        case unregistered_class:
-            msg = "unregistered class";
-            break;
-        case invalid_signature:
-            msg = "invalid signature";
-            break;
-        case unsupported_version:
-            msg = "unsupported version";
-            break;
-        case pointer_conflict:
-            msg = "pointer conflict";
-            break;
-        case incompatible_native_format:
-            msg = "incompatible native format";
-            break;
-        case array_size_too_short:
-            msg = "array size too short";
-            break;
-        case stream_error:
-            msg = "stream error";
-            break;
-        case invalid_class_name:
-            msg = "class name too long";
-            break;
-        case unregistered_cast:
-            msg = "unregistered void cast";
-            break;
-        case other_exception:
-            // if get here - it indicates a derived exception 
-            // was sliced by passing by value in catch
-            msg = "unknown derived exception";
-            break;
-        default:
-            assert(false);
-            break;
-        }
-        return msg;
-    }
-protected:
-    archive_exception() : 
-         code(no_exception)
-    {}
+
+    BOOST_ARCHIVE_DECL archive_exception(
+        exception_code c,
+        const char * e1 = NULL,
+        const char * e2 = NULL
+    ) BOOST_NOEXCEPT;
+    BOOST_ARCHIVE_DECL archive_exception(archive_exception const &) BOOST_NOEXCEPT;
+    BOOST_ARCHIVE_DECL ~archive_exception() BOOST_NOEXCEPT_OR_NOTHROW BOOST_OVERRIDE;
+    BOOST_ARCHIVE_DECL const char * what() const BOOST_NOEXCEPT_OR_NOTHROW BOOST_OVERRIDE;
 };

 }// namespace archive
 }// namespace boost

+#include <boost/archive/detail/abi_suffix.hpp> // pops abi_suffix.hpp pragmas
+
 #endif //BOOST_ARCHIVE_ARCHIVE_EXCEPTION_HPP
--- a/Show More
+++ b/Show More
				`@@ -1,3 +0,0 @@`
				`This file is used by the project manager only and should be treated like the project file`