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glibc  2.9
wmemmove_chk.c
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00001 /* Copyright (C) 1996, 1997, 1999, 2005 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <wchar.h>
00021 #include <string.h>
00022 
00023 
00024 wchar_t *
00025 __wmemmove_chk (wchar_t *s1, const wchar_t *s2, size_t n, size_t ns1)
00026 {
00027   if (__builtin_expect (ns1 < n, 0))
00028     __chk_fail ();
00029   return (wchar_t *) memmove ((char *) s1, (char *) s2, n * sizeof (wchar_t));
00030 }