root/maint/gnulib/lib/c32snrtombs.c

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DEFINITIONS

This source file includes following definitions.
  1. c32snrtombs

   1 /* Convert 32-bit wide string to string.
   2    Copyright (C) 2020-2021 Free Software Foundation, Inc.
   3 
   4    This file is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU Lesser General Public License as
   6    published by the Free Software Foundation; either version 3 of the
   7    License, or (at your option) any later version.
   8 
   9    This file 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
  12    GNU Lesser General Public License for more details.
  13 
  14    You should have received a copy of the GNU Lesser General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16 
  17 /* Written by Bruno Haible <bruno@clisp.org>, 2020.  */
  18 
  19 #include <config.h>
  20 
  21 /* Specification.  */
  22 #include <uchar.h>
  23 
  24 #include <wchar.h>
  25 
  26 #if (HAVE_WORKING_MBRTOC32 && !defined __GLIBC__) || _GL_LARGE_CHAR32_T
  27 /* The char32_t encoding of a multibyte character may be different than its
  28    wchar_t encoding, or char32_t is wider than wchar_t.  */
  29 
  30 # include <errno.h>
  31 # include <stdlib.h>
  32 # include <string.h>
  33 
  34 extern mbstate_t _gl_c32srtombs_state;
  35 
  36 # define FUNC c32snrtombs
  37 # define SCHAR_T char32_t
  38 # define INTERNAL_STATE _gl_c32srtombs_state
  39 # define WCRTOMB c32rtomb
  40 # include "wcsnrtombs-impl.h"
  41 
  42 #else
  43 /* char32_t and wchar_t are equivalent.  */
  44 
  45 # include "verify.h"
  46 
  47 verify (sizeof (char32_t) == sizeof (wchar_t));
  48 
  49 size_t
  50 c32snrtombs (char *dest, const char32_t **srcp, size_t srclen, size_t len,
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  51              mbstate_t *ps)
  52 {
  53   return wcsnrtombs (dest, (const wchar_t **) srcp, srclen, len, ps);
  54 }
  55 
  56 #endif

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