wcsrchr.c revision 76683 
1/*	$NetBSD: wcsrchr.c,v 1.1 2000/12/23 23:14:37 itojun 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: wcsrchr.c,v 1.2 2000/12/21 05:07:25 itojun Exp
29 *
30 * $FreeBSD: head/lib/libc/string/wcsrchr.c 76683 2001-05-16 14:34:47Z ru $
31 */
32
33#include <sys/cdefs.h>
34#if defined(LIBC_SCCS) && !defined(lint)
35__RCSID("$NetBSD: wcsrchr.c,v 1.1 2000/12/23 23:14:37 itojun Exp $");
36#endif /* LIBC_SCCS and not lint */
37
38#include <assert.h>
39#include <wchar.h>
40
41wchar_t *
42wcsrchr(s, c)
43	const wchar_t *s;
44	wchar_t c;
45{
46	const wchar_t *p;
47
48	p = s;
49	while (*p)
50		p++;
51	while (s <= p) {
52		if (*p == c) {
53			/* LINTED interface specification */
54			return (wchar_t *)p;
55		}
56		p--;
57	}
58	return NULL;
59}
60