xref: /netbsd/lib/libc/string/wcscpy.c (revision bf9ec67e)
1 /*	$NetBSD: wcscpy.c,v 1.2 2001/01/03 14:29:36 lukem Exp $	*/
2 
3 /*-
4  * Copyright (c)1999 Citrus Project,
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  *	citrus Id: wcscpy.c,v 1.2 2000/12/21 04:51:09 itojun Exp
29  */
30 
31 #include <sys/cdefs.h>
32 #if defined(LIBC_SCCS) && !defined(lint)
33 __RCSID("$NetBSD: wcscpy.c,v 1.2 2001/01/03 14:29:36 lukem Exp $");
34 #endif /* LIBC_SCCS and not lint */
35 
36 #include <assert.h>
37 #include <wchar.h>
38 
39 wchar_t *
40 wcscpy(s1, s2)
41 	wchar_t *s1;
42 	const wchar_t *s2;
43 {
44 	wchar_t *p;
45 	const wchar_t *q;
46 
47 	_DIAGASSERT(s1 != NULL);
48 	_DIAGASSERT(s2 != NULL);
49 
50 	*s1 = '\0';
51 	p = s1;
52 	q = s2;
53 	while (*q)
54 		*p++ = *q++;
55 	*p = '\0';
56 
57 	return s1;
58 }
59