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merged in (by hand all but 2 PRs which are still under consideration.

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Robert Ramey
2017-04-08 15:04:56 -07:00
parent 09fcc41a2a
commit 4b7df1079d
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LICENSE_1_0.txt
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Boost Software License - Version 1.0 - August 17th, 2003
Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:
The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
README.md
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safe_numerics
=============
Arithmetic operations in C++ are NOT guarenteed to yield a correct mathematical result. This feature is inherited from the early days of C. The behavior of int, unsigned int and others were designed to map closely to the underlying hardware. Computer hardware implements these types as a fixed number of bits. When the result of arithmetic operations exceeds this number of bits, the result is undefined and usually not what the programmer intended. It is incumbent upon the C++ programmer to guarantee that this behavior does not result in incorrect behavior of the program. This library implements special versions of these data types which behave exactly like the original ones EXCEPT that the results of these operations are checked to be sure that an exception will be thrown anytime an attempt is made to store the result of an undefined operation.
Additionally, we define data types safe_signed_range<MIN, MAX> and safe_unsigned_range<MIN, MAX> which will throw an exception if an attempt is made to store a result which is outside the closed range [MIN, MAX]
Browse documentation <a href=http://htmlpreview.github.io/?https://github.com/robertramey/safe_numerics/master/doc/html/index.html>here</a>
Arithmetic operations in C++ are NOT guaranteed to yield a correct mathematical result. This feature is inherited from the early days of C. The behavior of int, unsigned int and others were designed to map closely to the underlying hardware. Computer hardware implements these types as a fixed number of bits. When the result of arithmetic operations exceeds this number of bits, the result is undefined and usually not what the programmer intended. It is incumbent upon the C++ programmer to guarantee that this behavior does not result in incorrect behavior of the program. This library implements special versions of these data types which behave exactly like the original ones EXCEPT that the results of these operations are checked to be sure that an exception will be thrown anytime an attempt is made to store the result of an undefined operation.
include/checked_result.hpp
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// accesors
constexpr operator R() const {
// can't invoke assert at compiler time so it's in compatible
// with constexpr
//assert(no_exception());
return m_r;
}
index.html
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(C) Copyright 2017 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)
-->
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