1/*	$NetBSD: wcscat.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: wcscat.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp
29 */
30
31#include <sys/cdefs.h>
32#if defined(LIBC_SCCS) && !defined(lint)
33__RCSID("$NetBSD: wcscat.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
39wchar_t *
40wcscat(wchar_t *s1, const wchar_t *s2)
41{
42	wchar_t *p;
43	wchar_t *q;
44	const wchar_t *r;
45
46	_DIAGASSERT(s1 != NULL);
47	_DIAGASSERT(s2 != NULL);
48
49	p = s1;
50	while (*p)
51		p++;
52	q = p;
53	r = s2;
54	while (*r)
55		*q++ = *r++;
56	*q = '\0';
57	return s1;
58}
59