SSSE3 strcpy/stpcpy for x86-64
[glibc.git] / wcsmbs / wcscpy.c
blob2e52a6c46f70405528f576df2003c334b83b7805
1 /* Copyright (C) 1995, 1996, 1997, 2003 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #include <stddef.h>
21 #include <wchar.h>
24 /* Copy SRC to DEST. */
25 wchar_t *
26 wcscpy (dest, src)
27 wchar_t *dest;
28 const wchar_t *src;
30 wint_t c;
31 wchar_t *wcp;
33 if (__alignof__ (wchar_t) >= sizeof (wchar_t))
35 const ptrdiff_t off = dest - src - 1;
37 wcp = (wchar_t *) src;
41 c = *wcp++;
42 wcp[off] = c;
44 while (c != L'\0');
46 else
48 wcp = dest;
52 c = *src++;
53 *wcp++ = c;
55 while (c != L'\0');
58 return dest;