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124 lines
4.4 KiB
124 lines
4.4 KiB
/* /////////////////////////////////////////////////////////////////////////
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* File: stlsoft/conversion/truncation_cast.hpp
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*
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* Purpose: Runtime checking for numeric conversions.
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*
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* Created: 10th August 2006
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* Updated: 5th March 2011
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*
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* Home: http://stlsoft.org/
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*
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* Copyright (c) 2006-2011, Matthew Wilson and Synesis Software
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name(s) of Matthew Wilson and Synesis Software nor the names of
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* any contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* ////////////////////////////////////////////////////////////////////// */
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/** \file stlsoft/conversion/truncation_cast.hpp
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*
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* \brief [C++ only] Definition of the stlsoft::truncation_cast cast class
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* (\ref group__library__conversion "Conversion" Library).
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*/
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#ifndef STLSOFT_INCL_STLSOFT_CONVERSION_HPP_TRUNCATION_CAST
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#define STLSOFT_INCL_STLSOFT_CONVERSION_HPP_TRUNCATION_CAST
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#ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION
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# define STLSOFT_VER_STLSOFT_CONVERSION_HPP_TRUNCATION_CAST_MAJOR 1
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# define STLSOFT_VER_STLSOFT_CONVERSION_HPP_TRUNCATION_CAST_MINOR 0
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# define STLSOFT_VER_STLSOFT_CONVERSION_HPP_TRUNCATION_CAST_REVISION 4
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# define STLSOFT_VER_STLSOFT_CONVERSION_HPP_TRUNCATION_CAST_EDIT 42
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#endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */
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/* /////////////////////////////////////////////////////////////////////////
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* Auto-generation and compatibility
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*/
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/*
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*/
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/* /////////////////////////////////////////////////////////////////////////
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* Includes
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*/
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#ifndef STLSOFT_INCL_STLSOFT_H_STLSOFT
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# include <stlsoft/stlsoft.h>
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#endif /* !STLSOFT_INCL_STLSOFT_H_STLSOFT */
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#ifndef STLSOFT_INCL_STLSOFT_CONVERSION_HPP_TRUNCATION_TEST
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# include <stlsoft/conversion/truncation_test.hpp>
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#endif /* !STLSOFT_INCL_STLSOFT_CONVERSION_HPP_TRUNCATION_TEST */
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#ifndef STLSOFT_INCL_STDEXCEPT
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# define STLSOFT_INCL_STDEXCEPT
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# include <stdexcept>
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#endif /* !STLSOFT_INCL_STDEXCEPT */
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/* /////////////////////////////////////////////////////////////////////////
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* Namespace
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*/
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#ifndef _STLSOFT_NO_NAMESPACE
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namespace stlsoft
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{
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#endif /* _STLSOFT_NO_NAMESPACE */
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/* /////////////////////////////////////////////////////////////////////////
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* Functions
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*/
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template< ss_typename_param_k TO
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, ss_typename_param_k FROM
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>
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inline TO truncation_cast(FROM from)
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{
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if(!truncation_test<TO>(from))
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{
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STLSOFT_THROW_X(std::out_of_range("Cast would result in truncation"));
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}
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return static_cast<TO>(from);
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}
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////////////////////////////////////////////////////////////////////////////
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// Unit-testing
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#ifdef STLSOFT_UNITTEST
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# include "./unittest/truncation_cast_unittest_.h"
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#endif /* STLSOFT_UNITTEST */
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/* ////////////////////////////////////////////////////////////////////// */
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#ifndef _STLSOFT_NO_NAMESPACE
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} // namespace stlsoft
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#endif /* _STLSOFT_NO_NAMESPACE */
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/* ////////////////////////////////////////////////////////////////////// */
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#endif /* !STLSOFT_INCL_STLSOFT_CONVERSION_HPP_TRUNCATION_CAST */
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/* ///////////////////////////// end of file //////////////////////////// */
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