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106 lines
3.3 KiB
C++
106 lines
3.3 KiB
C++
// Copyright Kevlin Henney, 2000-2005.
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// Copyright Alexander Nasonov, 2006-2010.
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// Copyright Antony Polukhin, 2011-2014.
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// what: lexical_cast custom keyword cast
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// who: contributed by Kevlin Henney,
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// enhanced with contributions from Terje Slettebo,
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// with additional fixes and suggestions from Gennaro Prota,
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// Beman Dawes, Dave Abrahams, Daryle Walker, Peter Dimov,
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// Alexander Nasonov, Antony Polukhin, Justin Viiret, Michael Hofmann,
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// Cheng Yang, Matthew Bradbury, David W. Birdsall, Pavel Korzh and other Boosters
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// when: November 2000, March 2003, June 2005, June 2006, March 2011 - 2014
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#ifndef BOOST_LEXICAL_CAST_INCLUDED
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#define BOOST_LEXICAL_CAST_INCLUDED
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#include <boost/config.hpp>
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#ifdef BOOST_HAS_PRAGMA_ONCE
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# pragma once
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#endif
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#if defined(BOOST_NO_STRINGSTREAM) || defined(BOOST_NO_STD_WSTRING)
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#define BOOST_LCAST_NO_WCHAR_T
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#endif
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#include <boost/range/iterator_range_core.hpp>
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#include <boost/lexical_cast/bad_lexical_cast.hpp>
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#include <boost/lexical_cast/try_lexical_convert.hpp>
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namespace boost
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{
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template <typename Target, typename Source>
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inline Target lexical_cast(const Source &arg)
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{
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Target result = Target();
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if (!boost::conversion::detail::try_lexical_convert(arg, result)) {
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boost::conversion::detail::throw_bad_cast<Source, Target>();
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}
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return result;
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}
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template <typename Target>
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inline Target lexical_cast(const char* chars, std::size_t count)
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{
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return ::boost::lexical_cast<Target>(
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::boost::iterator_range<const char*>(chars, chars + count)
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);
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}
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template <typename Target>
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inline Target lexical_cast(const unsigned char* chars, std::size_t count)
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{
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return ::boost::lexical_cast<Target>(
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::boost::iterator_range<const unsigned char*>(chars, chars + count)
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);
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}
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template <typename Target>
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inline Target lexical_cast(const signed char* chars, std::size_t count)
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{
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return ::boost::lexical_cast<Target>(
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::boost::iterator_range<const signed char*>(chars, chars + count)
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);
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}
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#ifndef BOOST_LCAST_NO_WCHAR_T
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template <typename Target>
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inline Target lexical_cast(const wchar_t* chars, std::size_t count)
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{
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return ::boost::lexical_cast<Target>(
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::boost::iterator_range<const wchar_t*>(chars, chars + count)
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);
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}
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#endif
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#ifndef BOOST_NO_CXX11_CHAR16_T
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template <typename Target>
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inline Target lexical_cast(const char16_t* chars, std::size_t count)
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{
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return ::boost::lexical_cast<Target>(
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::boost::iterator_range<const char16_t*>(chars, chars + count)
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);
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}
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#endif
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#ifndef BOOST_NO_CXX11_CHAR32_T
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template <typename Target>
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inline Target lexical_cast(const char32_t* chars, std::size_t count)
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{
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return ::boost::lexical_cast<Target>(
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::boost::iterator_range<const char32_t*>(chars, chars + count)
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);
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}
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#endif
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} // namespace boost
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#undef BOOST_LCAST_NO_WCHAR_T
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#endif // BOOST_LEXICAL_CAST_INCLUDED
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