123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105 |
- // Copyright Kevlin Henney, 2000-2005.
- // Copyright Alexander Nasonov, 2006-2010.
- // Copyright Antony Polukhin, 2011-2019.
- //
- // 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)
- //
- // what: lexical_cast custom keyword cast
- // who: contributed by Kevlin Henney,
- // enhanced with contributions from Terje Slettebo,
- // with additional fixes and suggestions from Gennaro Prota,
- // Beman Dawes, Dave Abrahams, Daryle Walker, Peter Dimov,
- // Alexander Nasonov, Antony Polukhin, Justin Viiret, Michael Hofmann,
- // Cheng Yang, Matthew Bradbury, David W. Birdsall, Pavel Korzh and other Boosters
- // when: November 2000, March 2003, June 2005, June 2006, March 2011 - 2014
- #ifndef BOOST_LEXICAL_CAST_INCLUDED
- #define BOOST_LEXICAL_CAST_INCLUDED
- #include <boost/config.hpp>
- #ifdef BOOST_HAS_PRAGMA_ONCE
- # pragma once
- #endif
- #if defined(BOOST_NO_STRINGSTREAM) || defined(BOOST_NO_STD_WSTRING)
- #define BOOST_LCAST_NO_WCHAR_T
- #endif
- #include <boost/range/iterator_range_core.hpp>
- #include <boost/lexical_cast/bad_lexical_cast.hpp>
- #include <boost/lexical_cast/try_lexical_convert.hpp>
- namespace boost
- {
- template <typename Target, typename Source>
- inline Target lexical_cast(const Source &arg)
- {
- Target result = Target();
- if (!boost::conversion::detail::try_lexical_convert(arg, result)) {
- boost::conversion::detail::throw_bad_cast<Source, Target>();
- }
- return result;
- }
- template <typename Target>
- inline Target lexical_cast(const char* chars, std::size_t count)
- {
- return ::boost::lexical_cast<Target>(
- ::boost::iterator_range<const char*>(chars, chars + count)
- );
- }
- template <typename Target>
- inline Target lexical_cast(const unsigned char* chars, std::size_t count)
- {
- return ::boost::lexical_cast<Target>(
- ::boost::iterator_range<const unsigned char*>(chars, chars + count)
- );
- }
- template <typename Target>
- inline Target lexical_cast(const signed char* chars, std::size_t count)
- {
- return ::boost::lexical_cast<Target>(
- ::boost::iterator_range<const signed char*>(chars, chars + count)
- );
- }
- #ifndef BOOST_LCAST_NO_WCHAR_T
- template <typename Target>
- inline Target lexical_cast(const wchar_t* chars, std::size_t count)
- {
- return ::boost::lexical_cast<Target>(
- ::boost::iterator_range<const wchar_t*>(chars, chars + count)
- );
- }
- #endif
- #ifndef BOOST_NO_CXX11_CHAR16_T
- template <typename Target>
- inline Target lexical_cast(const char16_t* chars, std::size_t count)
- {
- return ::boost::lexical_cast<Target>(
- ::boost::iterator_range<const char16_t*>(chars, chars + count)
- );
- }
- #endif
- #ifndef BOOST_NO_CXX11_CHAR32_T
- template <typename Target>
- inline Target lexical_cast(const char32_t* chars, std::size_t count)
- {
- return ::boost::lexical_cast<Target>(
- ::boost::iterator_range<const char32_t*>(chars, chars + count)
- );
- }
- #endif
- } // namespace boost
- #undef BOOST_LCAST_NO_WCHAR_T
- #endif // BOOST_LEXICAL_CAST_INCLUDED
|