wcsmbs/uchar.h

   1 /* Copyright (C) 2011-2017 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 /*
  19  *      ISO C11 Standard: 7.28
  20  *      Unicode utilities       <uchar.h>
  21  */
  22
  23 #ifndef _UCHAR_H
  24 #define _UCHAR_H        1
  25
  26 #include <features.h>
  27
  28 #define __need_size_t
  29 #include <stddef.h>
  30
  31 #include <bits/types/mbstate_t.h>
  32
  33 #if defined __GNUC__ && !defined __USE_ISOCXX11
  34 /* Define the 16-bit and 32-bit character types.  Use the information
  35    provided by the compiler.  */
  36 # if !defined __CHAR16_TYPE__ || !defined __CHAR32_TYPE__
  37 #  if defined __STDC_VERSION__ && __STDC_VERSION__ < 201000L
  38 #   error "<uchar.h> requires ISO C11 mode"
  39 #  else
  40 #   error "definitions of __CHAR16_TYPE__ and/or __CHAR32_TYPE__ missing"
  41 #  endif
  42 # endif
  43 typedef __CHAR16_TYPE__ char16_t;
  44 typedef __CHAR32_TYPE__ char32_t;
  45 #endif
  46
  47
  48 __BEGIN_DECLS
  49
  50 /* Write char16_t representation of multibyte character pointed
  51    to by S to PC16.  */
  52 extern size_t mbrtoc16 (char16_t *__restrict __pc16,
  53                         const char *__restrict __s, size_t __n,
  54                         mbstate_t *__restrict __p) __THROW;
  55
  56 /* Write multibyte representation of char16_t C16 to S.  */
  57 extern size_t c16rtomb (char *__restrict __s, char16_t __c16,
  58                         mbstate_t *__restrict __ps) __THROW;
  59
  60
  61
  62 /* Write char32_t representation of multibyte character pointed
  63    to by S to PC32.  */
  64 extern size_t mbrtoc32 (char32_t *__restrict __pc32,
  65                         const char *__restrict __s, size_t __n,
  66                         mbstate_t *__restrict __p) __THROW;
  67
  68 /* Write multibyte representation of char32_t C32 to S.  */
  69 extern size_t c32rtomb (char *__restrict __s, char32_t __c32,
  70                         mbstate_t *__restrict __ps) __THROW;
  71
  72 __END_DECLS
  73
  74 #endif  /* uchar.h */