1 | // Copyright Kevlin Henney, 2000-2005. |
2 | // Copyright Alexander Nasonov, 2006-2010. |
3 | // Copyright Antony Polukhin, 2011-2024. |
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/lexical_cast/detail/buffer_view.hpp> |
31 | |
32 | #include <boost/lexical_cast/bad_lexical_cast.hpp> |
33 | #include <boost/lexical_cast/try_lexical_convert.hpp> |
34 | |
35 | namespace boost |
36 | { |
37 | template <typename Target, typename Source> |
38 | inline Target lexical_cast(const Source &arg) |
39 | { |
40 | Target result = Target(); |
41 | |
42 | if (!boost::conversion::detail::try_lexical_convert(arg, result)) { |
43 | boost::conversion::detail::throw_bad_cast<Source, Target>(); |
44 | } |
45 | |
46 | return result; |
47 | } |
48 | |
49 | template <typename Target> |
50 | inline Target lexical_cast(const char* chars, std::size_t count) |
51 | { |
52 | return ::boost::lexical_cast<Target>( |
53 | ::boost::conversion::detail::make_buffer_view(begin: chars, end: chars + count) |
54 | ); |
55 | } |
56 | |
57 | template <typename Target> |
58 | inline Target lexical_cast(const unsigned char* chars, std::size_t count) |
59 | { |
60 | return ::boost::lexical_cast<Target>( |
61 | ::boost::conversion::detail::make_buffer_view(begin: chars, end: chars + count) |
62 | ); |
63 | } |
64 | |
65 | template <typename Target> |
66 | inline Target lexical_cast(const signed char* chars, std::size_t count) |
67 | { |
68 | return ::boost::lexical_cast<Target>( |
69 | ::boost::conversion::detail::make_buffer_view(begin: chars, end: chars + count) |
70 | ); |
71 | } |
72 | |
73 | #ifndef BOOST_LCAST_NO_WCHAR_T |
74 | template <typename Target> |
75 | inline Target lexical_cast(const wchar_t* chars, std::size_t count) |
76 | { |
77 | return ::boost::lexical_cast<Target>( |
78 | ::boost::conversion::detail::make_buffer_view(begin: chars, end: chars + count) |
79 | ); |
80 | } |
81 | #endif |
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::conversion::detail::make_buffer_view(begin: chars, end: chars + count) |
87 | ); |
88 | } |
89 | template <typename Target> |
90 | inline Target lexical_cast(const char32_t* chars, std::size_t count) |
91 | { |
92 | return ::boost::lexical_cast<Target>( |
93 | ::boost::conversion::detail::make_buffer_view(begin: chars, end: chars + count) |
94 | ); |
95 | } |
96 | |
97 | } // namespace boost |
98 | |
99 | #undef BOOST_LCAST_NO_WCHAR_T |
100 | |
101 | #endif // BOOST_LEXICAL_CAST_INCLUDED |
102 | |
103 | |