slav.klenov | e480c22 | 2016-01-20 12:36:16 +0200 | [diff] [blame] | 1 | // Copyright Kevlin Henney, 2000-2005. |
| 2 | // Copyright Alexander Nasonov, 2006-2010. |
| 3 | // Copyright Antony Polukhin, 2011-2014. |
| 4 | // |
| 5 | // Distributed under the Boost Software License, Version 1.0. (See |
| 6 | // accompanying file LICENSE_1_0.txt or copy at |
| 7 | // http://www.boost.org/LICENSE_1_0.txt) |
| 8 | // |
| 9 | // what: lexical_cast custom keyword cast |
| 10 | // who: contributed by Kevlin Henney, |
| 11 | // enhanced with contributions from Terje Slettebo, |
| 12 | // with additional fixes and suggestions from Gennaro Prota, |
| 13 | // Beman Dawes, Dave Abrahams, Daryle Walker, Peter Dimov, |
| 14 | // Alexander Nasonov, Antony Polukhin, Justin Viiret, Michael Hofmann, |
| 15 | // Cheng Yang, Matthew Bradbury, David W. Birdsall, Pavel Korzh and other Boosters |
| 16 | // when: November 2000, March 2003, June 2005, June 2006, March 2011 - 2014 |
| 17 | |
| 18 | #ifndef BOOST_LEXICAL_CAST_INCLUDED |
| 19 | #define BOOST_LEXICAL_CAST_INCLUDED |
| 20 | |
| 21 | #include <boost/config.hpp> |
| 22 | #ifdef BOOST_HAS_PRAGMA_ONCE |
| 23 | # pragma once |
| 24 | #endif |
| 25 | |
| 26 | #if defined(BOOST_NO_STRINGSTREAM) || defined(BOOST_NO_STD_WSTRING) |
| 27 | #define BOOST_LCAST_NO_WCHAR_T |
| 28 | #endif |
| 29 | |
| 30 | #include <boost/range/iterator_range_core.hpp> |
| 31 | #include <boost/lexical_cast/bad_lexical_cast.hpp> |
| 32 | #include <boost/lexical_cast/try_lexical_convert.hpp> |
| 33 | |
| 34 | namespace boost |
| 35 | { |
| 36 | template <typename Target, typename Source> |
| 37 | inline Target lexical_cast(const Source &arg) |
| 38 | { |
| 39 | Target result; |
| 40 | |
| 41 | if (!boost::conversion::detail::try_lexical_convert(arg, result)) { |
| 42 | boost::conversion::detail::throw_bad_cast<Source, Target>(); |
| 43 | } |
| 44 | |
| 45 | return result; |
| 46 | } |
| 47 | |
| 48 | template <typename Target> |
| 49 | inline Target lexical_cast(const char* chars, std::size_t count) |
| 50 | { |
| 51 | return ::boost::lexical_cast<Target>( |
| 52 | ::boost::iterator_range<const char*>(chars, chars + count) |
| 53 | ); |
| 54 | } |
| 55 | |
| 56 | template <typename Target> |
| 57 | inline Target lexical_cast(const unsigned char* chars, std::size_t count) |
| 58 | { |
| 59 | return ::boost::lexical_cast<Target>( |
| 60 | ::boost::iterator_range<const unsigned char*>(chars, chars + count) |
| 61 | ); |
| 62 | } |
| 63 | |
| 64 | template <typename Target> |
| 65 | inline Target lexical_cast(const signed char* chars, std::size_t count) |
| 66 | { |
| 67 | return ::boost::lexical_cast<Target>( |
| 68 | ::boost::iterator_range<const signed char*>(chars, chars + count) |
| 69 | ); |
| 70 | } |
| 71 | |
| 72 | #ifndef BOOST_LCAST_NO_WCHAR_T |
| 73 | template <typename Target> |
| 74 | inline Target lexical_cast(const wchar_t* chars, std::size_t count) |
| 75 | { |
| 76 | return ::boost::lexical_cast<Target>( |
| 77 | ::boost::iterator_range<const wchar_t*>(chars, chars + count) |
| 78 | ); |
| 79 | } |
| 80 | #endif |
| 81 | #ifndef BOOST_NO_CXX11_CHAR16_T |
| 82 | template <typename Target> |
| 83 | inline Target lexical_cast(const char16_t* chars, std::size_t count) |
| 84 | { |
| 85 | return ::boost::lexical_cast<Target>( |
| 86 | ::boost::iterator_range<const char16_t*>(chars, chars + count) |
| 87 | ); |
| 88 | } |
| 89 | #endif |
| 90 | #ifndef BOOST_NO_CXX11_CHAR32_T |
| 91 | template <typename Target> |
| 92 | inline Target lexical_cast(const char32_t* chars, std::size_t count) |
| 93 | { |
| 94 | return ::boost::lexical_cast<Target>( |
| 95 | ::boost::iterator_range<const char32_t*>(chars, chars + count) |
| 96 | ); |
| 97 | } |
| 98 | #endif |
| 99 | |
| 100 | } // namespace boost |
| 101 | |
| 102 | #undef BOOST_LCAST_NO_WCHAR_T |
| 103 | |
| 104 | #endif // BOOST_LEXICAL_CAST_INCLUDED |
| 105 | |