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38e68573 | 1 | /* Copyright (C) 1995, 1996, 1997, 2003 Free Software Foundation, Inc. |
33a934a3 UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
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. | |
33a934a3 UD |
9 | |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
33a934a3 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
a482b5a5 | 18 | |
a482b5a5 | 19 | #include <stddef.h> |
38e68573 | 20 | #include <wchar.h> |
a482b5a5 RM |
21 | |
22 | ||
23 | /* Copy SRC to DEST. */ | |
24 | wchar_t * | |
25 | wcscpy (dest, src) | |
299a95b9 RM |
26 | wchar_t *dest; |
27 | const wchar_t *src; | |
a482b5a5 | 28 | { |
75cd5204 | 29 | wint_t c; |
38e68573 | 30 | wchar_t *wcp; |
a482b5a5 | 31 | |
38e68573 UD |
32 | if (__alignof__ (wchar_t) >= sizeof (wchar_t)) |
33 | { | |
34 | const ptrdiff_t off = dest - src - 1; | |
35 | ||
36 | wcp = (wchar_t *) src; | |
37 | ||
38 | do | |
39 | { | |
40 | c = *wcp++; | |
41 | wcp[off] = c; | |
42 | } | |
43 | while (c != L'\0'); | |
44 | } | |
45 | else | |
a482b5a5 | 46 | { |
38e68573 UD |
47 | wcp = dest; |
48 | ||
49 | do | |
50 | { | |
51 | c = *src++; | |
52 | *wcp++ = c; | |
53 | } | |
54 | while (c != L'\0'); | |
a482b5a5 | 55 | } |
a482b5a5 RM |
56 | |
57 | return dest; | |
58 | } |