BZ #15536: Fix ulp for 128-bit IBM long double.
[glibc.git] / debug / mbstowcs_chk.c
blob323f65b9c644a1709f5f818f286f398986fa1e12
1 /* Copyright (C) 2005-2013 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
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.
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.
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/>. */
18 #include <locale.h>
19 #include <string.h>
20 #include <wchar.h>
23 size_t
24 __mbstowcs_chk (wchar_t *dst, const char *src, size_t len, size_t dstlen)
26 if (__builtin_expect (dstlen < len, 0))
27 __chk_fail ();
29 mbstate_t state;
31 memset (&state, '\0', sizeof state);
32 /* Return how many we wrote (or maybe an error). */
33 return __mbsrtowcs (dst, &src, len, &state);