debug/mbsrtowcs_chk.c

   1 /* Copyright (C) 2005-2013 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 #include <locale.h>
  19 #include <wchar.h>
  20
  21
  22 size_t
  23 __mbsrtowcs_chk (wchar_t *dst, const char **src, size_t len,
  24                  mbstate_t *ps, size_t dstlen)
  25 {
  26   if (__builtin_expect (dstlen < len, 0))
  27     __chk_fail ();
  28
  29   return __mbsrtowcs (dst, src, len, ps);
  30 }