Run the examples serially in CI

The example programs write to fixed temp filenames---demo and
demo_exception even share tmpdir()/demofile.txt---so running them under
`b2 -jN` with N > 1 races: concurrent processes clobber each other's
archive files and a reader picks up a half-written one, throwing
`archive_exception`. Therefore, run the examples under `-j1` (the tests
keep running in parallel).

.github/workflows/ci.yml

@@ -7,7 +7,6 @@ on:
       - master
       - develop
       - feature/**
-  merge_group:
 
 env:
   UBSAN_OPTIONS: print_stacktrace=1

include/boost/archive/impl/xml_iarchive_impl.ipp

@@ -189,14 +189,7 @@ xml_iarchive_impl<Archive>::~xml_iarchive_impl(){
     if(boost::core::uncaught_exceptions() > 0)
         return;
     if(0 == (this->get_flags() & no_header)){
-        // windup() parses the trailing end tag; an exception must not escape
-        // this (implicitly noexcept) destructor and terminate the process.
-        // A stream error while consuming the trailer is not worth that.  #99
-        BOOST_TRY {
-            gimpl->windup(is);
-        }
-        BOOST_CATCH(...) {}
-        BOOST_CATCH_END
+        gimpl->windup(is);
     }
 }
 } // namespace archive

include/boost/archive/impl/xml_wiarchive_impl.ipp

@@ -177,14 +177,7 @@ xml_wiarchive_impl<Archive>::~xml_wiarchive_impl(){
     if(boost::core::uncaught_exceptions() > 0)
         return;
     if(0 == (this->get_flags() & no_header)){
-        // windup() parses the trailing end tag; an exception must not escape
-        // this (implicitly noexcept) destructor and terminate the process.
-        // A stream error while consuming the trailer is not worth that.  #99
-        BOOST_TRY {
-            gimpl->windup(is);
-        }
-        BOOST_CATCH(...) {}
-        BOOST_CATCH_END
+        gimpl->windup(is);
     }
 }
 

include/boost/serialization/optional.hpp

@@ -20,7 +20,6 @@
 #include <optional>
 #endif
 
-#include <boost/move/utility_core.hpp>
 #include <boost/serialization/item_version_type.hpp>
 #include <boost/serialization/library_version_type.hpp>
 #include <boost/serialization/version.hpp>
@@ -84,7 +83,7 @@ void load_impl(
     }
     typename OT::value_type t;
     ar >> boost::serialization::make_nvp("value",t);
-    ot = boost::move(t);
+    ot = t;
 }
 
 } // detail

src/basic_oarchive.cpp

@@ -255,7 +255,7 @@ basic_oarchive_impl::save_object(
     if(bos.class_info()){
         if( ! co.m_initialized){
             ar.vsave(class_id_optional_type(co.m_class_id));
-            ar.vsave(tracking_type(co.m_bos_ptr->tracking(m_flags)));
+            ar.vsave(tracking_type(bos.tracking(m_flags)));
             ar.vsave(version_type(bos.version()));
             (const_cast<cobject_type &>(co)).m_initialized = true;
         }
@@ -343,7 +343,7 @@ basic_oarchive_impl::save_pointer(
             }
         }
         if(bos.class_info()){
-            ar.vsave(tracking_type(co.m_bos_ptr->tracking(m_flags)));
+            ar.vsave(tracking_type(bos.tracking(m_flags)));
             ar.vsave(version_type(bos.version()));
         }
         (const_cast<cobject_type &>(co)).m_initialized = true;

src/basic_xml_grammar.ipp

@@ -191,15 +191,6 @@ bool basic_xml_grammar<CharType>::my_parse(
     for(;;){
         CharType result;
         is.get(result);
-        // Reaching end of input while scanning for the next character is the
-        // normal way an archive ends (e.g. windup() consuming the trailer);
-        // it is not a stream error.  get() sets both eofbit and failbit at end
-        // of stream, so test eof() *before* fail() -- otherwise the normal
-        // termination is misreported as input_stream_error, which is fatal
-        // when it surfaces in the (noexcept) archive destructor via windup().
-        // See #99.
-        if(is.eof())
-            return false;
         if(is.fail()){
             boost::serialization::throw_exception(
                 boost::archive::archive_exception(
@@ -208,6 +199,8 @@ bool basic_xml_grammar<CharType>::my_parse(
                 )
             );
         }
+        if(is.eof())
+            return false;
         arg += result;
         if(result == delimiter)
             break;

test/Jamfile.v2

@@ -146,14 +146,11 @@ if ! $(BOOST_ARCHIVE_LIST) {
         # we suppress tests of our dlls when using static libraries
 
         [ test-bsl-run test_dll_simple   : : dll_a :  <link>static:<build>no ]
-        [ test-bsl-run test_dll_base_pointer : : dll_polymorphic_base dll_polymorphic_derived2 : <link>static:<build>no ]
         # [ test-bsl-run test_dll_plugin : : dll_derived2 : <link>static:<build>no <target-os>linux:<linkflags>-ldl ]
 
         [ test-bsl-run test_private_ctor ]
         [ test-bsl-run test_reset_object_address : A ]
         [ test-bsl-run test_void_cast ]
-        [ test-bsl-run test_xml_trailing_whitespace ]
-        [ test-bsl-run test_xml_missing_nvp ]
         [ test-bsl-run test_mult_archive_types : : : [ requires std_wstreambuf ] ]
         [ test-bsl-run test_iterators : : : [ requires std_wstreambuf ] ]
         [ test-bsl-run test_iterators_base64 ]

test/test_dll_base_pointer.cpp

@@ -1,75 +0,0 @@
-/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
-// test_dll_base_pointer.cpp
-
-// Copyright 2026 Gennaro Prota
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// https://www.boost.org/LICENSE_1_0.txt)
-
-// Regression test for issue #117.  A derived class defined in a shared
-// library is serialized and deserialized through a pointer to its abstract
-// base, from an executable built with hidden symbol visibility.
-// Historically this failed on GCC/ELF: the per type serializer singletons
-// were duplicated across the shared library boundary, so the reader could not
-// map the class id back to the derived type.  The round trip must recover an
-// object of the derived type.
-
-#include <fstream>
-#include <cstdio>
-#include <typeinfo>
-
-#include <boost/config.hpp>
-
-#include "test_tools.hpp"
-
-#ifndef BOOST_NO_CXX11_SMART_PTR
-
-#include <boost/archive/polymorphic_binary_oarchive.hpp>
-#include <boost/archive/polymorphic_binary_iarchive.hpp>
-#include <boost/archive/tmpdir.hpp>
-
-#include <boost/smart_ptr/make_unique.hpp>
-#include <boost/serialization/unique_ptr.hpp>
-#include <boost/serialization/nvp.hpp>
-
-// polymorphic_derived2 (and its base, polymorphic_base) live in the shared
-// library this test links against
-#define POLYMORPHIC_DERIVED2_IMPORT
-#include "polymorphic_derived2.hpp"
-
-int test_main(int /* argc */, char * /* argv */ []){
-    const char * testfile = boost::archive::tmpnam(NULL);
-    BOOST_REQUIRE(NULL != testfile);
-
-    std::unique_ptr<polymorphic_base> saved =
-        boost::make_unique<polymorphic_derived2>();
-    {
-        std::ofstream os(testfile, std::ios::binary);
-        boost::archive::polymorphic_binary_oarchive oa(os);
-        boost::archive::polymorphic_oarchive & poa = oa;
-        poa << boost::serialization::make_nvp("ptr", saved);
-    }
-
-    std::unique_ptr<polymorphic_base> loaded;
-    {
-        std::ifstream is(testfile, std::ios::binary);
-        boost::archive::polymorphic_binary_iarchive ia(is);
-        boost::archive::polymorphic_iarchive & pia = ia;
-        pia >> boost::serialization::make_nvp("ptr", loaded);
-    }
-
-    BOOST_CHECK(0 != loaded.get());
-    // the object recovered through the base pointer must be the derived type
-    BOOST_CHECK(0 != dynamic_cast<polymorphic_derived2 *>(loaded.get()));
-
-    std::remove(testfile);
-    return EXIT_SUCCESS;
-}
-
-#else
-
-int test_main(int /* argc */, char * /* argv */ []){
-    return EXIT_SUCCESS;
-}
-
-#endif // BOOST_NO_CXX11_SMART_PTR

test/test_optional.cpp

@@ -2,7 +2,6 @@
 // test_optional.cpp
 
 // (C) Copyright 2004 Pavel Vozenilek
-// Copyright 2026 Gennaro Prota
 // 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)
@@ -93,59 +92,6 @@ int test(){
     return EXIT_SUCCESS;
 }
 
-// A move-only value type: deleted copy, defaulted move.  Loading an
-// optional<M> must move the deserialized value into place rather than copy
-// it.
-#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) \
-    && !defined(BOOST_NO_CXX11_DELETED_FUNCTIONS) \
-    && !defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS)
-#define BOOST_SERIALIZATION_TEST_OPTIONAL_MOVE_ONLY
-
-struct M {
-    int m_x;
-    M() : m_x(0) {}
-    explicit M(int x) : m_x(x) {}
-    M(const M &) = delete;
-    M & operator=(const M &) = delete;
-    M(M &&) = default;
-    M & operator=(M &&) = default;
-    template<class Archive>
-    void serialize(Archive & ar, const unsigned int /* version */){
-        ar & boost::serialization::make_nvp("x", m_x);
-    }
-};
-
-template<template<class> class Optional>
-int test_move_only(){
-    const char * testfile = boost::archive::tmpnam(NULL);
-    BOOST_REQUIRE(NULL != testfile);
-
-    Optional<M> o_empty;
-    Optional<M> o_value(M(42));
-    {
-        test_ostream os(testfile, TEST_STREAM_FLAGS);
-        test_oarchive oa(os, TEST_ARCHIVE_FLAGS);
-        oa << boost::serialization::make_nvp("o_empty", o_empty);
-        oa << boost::serialization::make_nvp("o_value", o_value);
-    }
-    // start each target in the opposite state, so load must both reset and
-    // assign
-    Optional<M> o_empty_a(M(7));
-    Optional<M> o_value_a;
-    {
-        test_istream is(testfile, TEST_STREAM_FLAGS);
-        test_iarchive ia(is, TEST_ARCHIVE_FLAGS);
-        ia >> boost::serialization::make_nvp("o_empty", o_empty_a);
-        ia >> boost::serialization::make_nvp("o_value", o_value_a);
-    }
-    BOOST_CHECK(! o_empty_a);
-    BOOST_CHECK(static_cast<bool>(o_value_a) && 42 == o_value_a->m_x);
-
-    std::remove(testfile);
-    return EXIT_SUCCESS;
-}
-#endif // move-only support available
-
 #include <boost/serialization/optional.hpp>
 #ifndef BOOST_NO_CXX17_HDR_OPTIONAL
 #include <optional>
@@ -156,11 +102,5 @@ int test_main( int /* argc */, char* /* argv */[] ){
     #ifndef BOOST_NO_CXX17_HDR_OPTIONAL
     test<std::optional>();
     #endif
-    #ifdef BOOST_SERIALIZATION_TEST_OPTIONAL_MOVE_ONLY
-    test_move_only<boost::optional>();
-    #ifndef BOOST_NO_CXX17_HDR_OPTIONAL
-    test_move_only<std::optional>();
-    #endif
-    #endif
     return EXIT_SUCCESS;
 }

test/test_xml_missing_nvp.cpp

@@ -1,58 +0,0 @@
-/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
-// test_xml_missing_nvp.cpp
-
-// Copyright 2026 Gennaro Prota
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// https://www.boost.org/LICENSE_1_0.txt)
-
-// Regression test for issue #109.  Attempting to read an nvp that is not
-// present throws archive_exception, which the caller may catch.  The failed
-// read consumes the closing tag, so at destruction windup() reaches end of
-// input -- the same Boost 1.66 my_parse regression as #82/#99, reached by a
-// different path.  The input archive must still destruct without terminating.
-
-#include <sstream>
-#include <string>
-
-#include <boost/archive/xml_oarchive.hpp>
-#include <boost/archive/xml_iarchive.hpp>
-#include <boost/archive/archive_exception.hpp>
-#include <boost/serialization/nvp.hpp>
-
-#include "test_tools.hpp"
-
-int test_main(int /* argc */, char * /* argv */ []){
-    // Build a valid XML archive holding a single value.
-    std::string content;
-    {
-        std::ostringstream os;
-        {
-            boost::archive::xml_oarchive oa(os);
-            const int x = 42;
-            oa << boost::serialization::make_nvp("x", x);
-        }
-        content = os.str();
-    }
-
-    int x = 0;
-    bool caught = false;
-    {
-        std::istringstream is(content);
-        boost::archive::xml_iarchive ia(is);
-        ia >> boost::serialization::make_nvp("x", x);
-        try {
-            int y = 0;
-            ia >> boost::serialization::make_nvp("not_there", y);
-        } catch (const boost::archive::archive_exception &){
-            caught = true;
-        }
-        // `ia` is destroyed here, after the caught exception.  Before the fix,
-        // windup() hit end of input (the failed read consumed the closing
-        // tag) and threw out of the noexcept destructor, terminating.
-    }
-    BOOST_CHECK(42 == x);
-    BOOST_CHECK(caught);
-
-    return EXIT_SUCCESS;
-}

test/test_xml_trailing_whitespace.cpp

@@ -1,59 +0,0 @@
-/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
-// test_xml_trailing_whitespace.cpp
-
-// Copyright 2026 Gennaro Prota
-// Distributed under the Boost Software License, Version 1.0.
-// (See accompanying file LICENSE_1_0.txt or copy at
-// https://www.boost.org/LICENSE_1_0.txt)
-
-// Regression test for issue #99.  When an XML input archive is destroyed and
-// its stream has no closing tag left -- only trailing whitespace before end
-// of input (a truncated archive; the reported case had the stream "contain
-// \r\n") -- windup() reaches end of input while scanning for the trailing
-// tag.  End of input there is normal termination, not a stream error, so the
-// (implicitly noexcept) destructor must complete cleanly rather than throw,
-// which used to terminate the process.
-
-#include <sstream>
-#include <string>
-
-#include <boost/archive/xml_oarchive.hpp>
-#include <boost/archive/xml_iarchive.hpp>
-#include <boost/serialization/nvp.hpp>
-
-#include "test_tools.hpp"
-
-int test_main(int /* argc */, char * /* argv */ []){
-    // Build a valid XML archive holding a single value.
-    std::string content;
-    {
-        std::ostringstream os;
-        {
-            boost::archive::xml_oarchive oa(os);
-            const int x = 42;
-            oa << boost::serialization::make_nvp("x", x);
-        }
-        content = os.str();
-    }
-
-    // Drop the closing document tag and leave only trailing whitespace, so the
-    // input archive's windup() reaches end of input at destruction instead of
-    // finding a tag.
-    const std::string::size_type close = content.rfind("</boost_serialization>");
-    BOOST_REQUIRE(std::string::npos != close);
-    content.erase(close);
-    content += "\r\n";
-
-    int y = 0;
-    {
-        std::istringstream is(content);
-        boost::archive::xml_iarchive ia(is);
-        ia >> boost::serialization::make_nvp("x", y);
-        // `ia` is destroyed here with only trailing whitespace left.  Before
-        // the fix, windup() threw input_stream_error out of the noexcept
-        // destructor and terminated the process.
-    }
-    BOOST_CHECK(42 == y);
-
-    return EXIT_SUCCESS;
-}