wcscat.c revision 76612 
1/*	$NetBSD: wcscat.c,v 1.1 2000/12/23 23:14:36 itojun Exp $	*/
2/*-
3 * Copyright (c)1999 Citrus Project,
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 *	citrus Id: wcscat.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp
28 *
29 * $FreeBSD: head/lib/libc/string/wcscat.c 76612 2001-05-15 06:01:19Z tshiozak $
30 */
31
32#include <sys/cdefs.h>
33#if defined(LIBC_SCCS) && !defined(lint)
34__RCSID("$NetBSD: wcscat.c,v 1.1 2000/12/23 23:14:36 itojun Exp $");
35#endif /* LIBC_SCCS and not lint */
36
37#include <assert.h>
38#include <wchar.h>
39
40wchar_t *
41wcscat(s1, s2)
42	wchar_t *s1;
43	const wchar_t *s2;
44{
45	wchar_t *p;
46	wchar_t *q;
47	const wchar_t *r;
48
49	_DIAGASSERT(s1 != NULL);
50	_DIAGASSERT(s2 != NULL);
51
52	p = s1;
53	while (*p)
54		p++;
55	q = p;
56	r = s2;
57	while (*r)
58		*q++ = *r++;
59	*q = '\0';
60	return s1;
61}
62