libstdc++
cuchar
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1 // -*- C++ -*- forwarding header.
2 
3 // Copyright (C) 2015-2022 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
9 // any later version.
10 
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
15 
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
19 
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
24 
25 /** @file include/cuchar
26  * This is a Standard C++ Library file. You should @c \#include this file
27  * in your programs, rather than any of the @a *.h implementation files.
28  *
29  * This is the C++ version of the Standard C Library header @c uchar.h,
30  * and its contents are (mostly) the same as that header, but are all
31  * contained in the namespace @c std (except for names which are defined
32  * as macros in C).
33  */
34 
35 //
36 // ISO C++ 14882:2011 21.8
37 //
38 
39 #ifndef _GLIBCXX_CUCHAR
40 #define _GLIBCXX_CUCHAR 1
41 
42 #pragma GCC system_header
43 
44 #if __cplusplus < 201103L
45 # include <bits/c++0x_warning.h>
46 #else
47 
48 #include <bits/c++config.h>
49 #include <cwchar>
50 
51 #if (_GLIBCXX_USE_C11_UCHAR_CXX11 \
52  || (_GLIBCXX_USE_CHAR8_T \
53  && (_GLIBCXX_USE_UCHAR_C8RTOMB_MBRTOC8_FCHAR8_T \
54  || (__cplusplus >= 202002 \
55  && _GLIBCXX_USE_UCHAR_C8RTOMB_MBRTOC8_CXX20))))
56 
57 #include <uchar.h>
58 
59 #endif
60 
61 
62 // Support for mbrtoc8 and c8rtomb is conditioned on support by the C library.
63 #if (_GLIBCXX_USE_CHAR8_T \
64  && (_GLIBCXX_USE_UCHAR_C8RTOMB_MBRTOC8_FCHAR8_T \
65  || (__cplusplus >= 202002 \
66  && _GLIBCXX_USE_UCHAR_C8RTOMB_MBRTOC8_CXX20)))
67 
68 #undef mbrtoc8
69 #undef c8rtomb
70 
71 namespace std _GLIBCXX_VISIBILITY(default)
72 {
73 _GLIBCXX_BEGIN_NAMESPACE_VERSION
74 
75  using ::mbrtoc8;
76  using ::c8rtomb;
77 
78 _GLIBCXX_END_NAMESPACE_VERSION
79 } // namespace std
80 
81 #endif // _GLIBCXX_USE_CHAR8_T
82 
83 
84 #if _GLIBCXX_USE_C11_UCHAR_CXX11
85 
86 // Get rid of those macros defined in <uchar.h> in lieu of real functions.
87 #undef mbrtoc16
88 #undef c16rtomb
89 #undef mbrtoc32
90 #undef c32rtomb
91 
92 namespace std _GLIBCXX_VISIBILITY(default)
93 {
94 _GLIBCXX_BEGIN_NAMESPACE_VERSION
95 
96  using ::mbrtoc16;
97  using ::c16rtomb;
98  using ::mbrtoc32;
99  using ::c32rtomb;
100 
101 _GLIBCXX_END_NAMESPACE_VERSION
102 } // namespace std
103 
104 #endif // _GLIBCXX_USE_C11_UCHAR_CXX11
105 
106 #endif // C++11
107 
108 #endif // _GLIBCXX_CUCHAR