include/uchar.h

   1 /* Copyright (C) 2011-2021 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    <https://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.h>
  32 #include <bits/types/mbstate_t.h>
  33
  34 #ifndef __USE_ISOCXX11
  35 /* Define the 16-bit and 32-bit character types.  */
  36 typedef __uint_least16_t char16_t;
  37 typedef __uint_least32_t char32_t;
  38 #endif
  39
  40
  41 __BEGIN_DECLS
  42
  43 /* Write char16_t representation of multibyte character pointed
  44    to by S to PC16.  */
  45 extern size_t mbrtoc16 (char16_t *__restrict __pc16,
  46                         const char *__restrict __s, size_t __n,
  47                         mbstate_t *__restrict __p) __THROW;
  48
  49 /* Write multibyte representation of char16_t C16 to S.  */
  50 extern size_t c16rtomb (char *__restrict __s, char16_t __c16,
  51                         mbstate_t *__restrict __ps) __THROW;
  52
  53
  54
  55 /* Write char32_t representation of multibyte character pointed
  56    to by S to PC32.  */
  57 extern size_t mbrtoc32 (char32_t *__restrict __pc32,
  58                         const char *__restrict __s, size_t __n,
  59                         mbstate_t *__restrict __p) __THROW;
  60
  61 /* Write multibyte representation of char32_t C32 to S.  */
  62 extern size_t c32rtomb (char *__restrict __s, char32_t __c32,
  63                         mbstate_t *__restrict __ps) __THROW;
  64
  65 __END_DECLS
  66
  67 #endif  /* uchar.h */