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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 
     53 #if (_GLIBCXX_USE_C11_UCHAR_CXX11 \
     54      || (_GLIBCXX_USE_CHAR8_T \
     55 	 && (_GLIBCXX_USE_UCHAR_C8RTOMB_MBRTOC8_FCHAR8_T \
     56 	     || (__cplusplus >= 202002 \
     57 		 && _GLIBCXX_USE_UCHAR_C8RTOMB_MBRTOC8_CXX20))))
     58  
     59 #include <uchar.h>
     60  
     61 #endif
     62 
     63 
     64 // Support for mbrtoc8 and c8rtomb is conditioned on support by the C library.
     65 #if (_GLIBCXX_USE_CHAR8_T \
     66      && (_GLIBCXX_USE_UCHAR_C8RTOMB_MBRTOC8_FCHAR8_T \
     67 	 || (__cplusplus >= 202002 \
     68 	     && _GLIBCXX_USE_UCHAR_C8RTOMB_MBRTOC8_CXX20)))
     69 
     70 // Get rid of those macros defined in <uchar.h> in lieu of real functions.
     71 #undef mbrtoc8
     72 #undef c8rtomb
     73 
     74 namespace std _GLIBCXX_VISIBILITY(default)
     75 {
     76 _GLIBCXX_BEGIN_NAMESPACE_VERSION
     77 
     78   using ::mbrtoc8;
     79   using ::c8rtomb;
     80 
     81 _GLIBCXX_END_NAMESPACE_VERSION
     82 } // namespace std
     83 
     84 #endif // _GLIBCXX_USE_CHAR8_T
     85 
     86 
     87 #if _GLIBCXX_USE_C11_UCHAR_CXX11
     88 
     89 
     90 // Get rid of those macros defined in <uchar.h> in lieu of real functions.
     91 #undef mbrtoc16
     92 #undef c16rtomb
     93 #undef mbrtoc32
     94 #undef c32rtomb
     95 
     96 namespace std _GLIBCXX_VISIBILITY(default)
     97 {
     98 _GLIBCXX_BEGIN_NAMESPACE_VERSION
     99 
    100   using ::mbrtoc16;
    101   using ::c16rtomb;
    102   using ::mbrtoc32;
    103   using ::c32rtomb;
    104 
    105 _GLIBCXX_END_NAMESPACE_VERSION
    106 } // namespace std
    107 
    108 #endif // _GLIBCXX_USE_C11_UCHAR_CXX11
    109 
    110 #endif // C++11
    111 
    112 #endif // _GLIBCXX_CUCHAR
    113