wcsncat.c revision 188080 
1/*-
2 * Copyright (c)1999 Citrus Project,
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 *	citrus Id: wcsncat.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp
27 */
28
29#include <sys/cdefs.h>
30#if 0
31#if defined(LIBC_SCCS) && !defined(lint)
32__RCSID("$NetBSD: wcsncat.c,v 1.1 2000/12/23 23:14:36 itojun Exp $");
33#endif /* LIBC_SCCS and not lint */
34#endif
35__FBSDID("$FreeBSD: head/lib/libc/string/wcsncat.c 188080 2009-02-03 17:58:20Z danger $");
36
37#include <wchar.h>
38
39wchar_t *
40wcsncat(wchar_t * __restrict s1, const wchar_t * __restrict s2, size_t n)
41{
42	wchar_t *p;
43	wchar_t *q;
44	const wchar_t *r;
45
46	p = s1;
47	while (*p)
48		p++;
49	q = p;
50	r = s2;
51	while (*r && n) {
52		*q++ = *r++;
53		n--;
54	}
55	*q = '\0';
56	return s1;
57}
58