1 /** $MirOS: src/lib/libc/string/wmemcmp.c,v 1.2 2005/09/22 20:53:01 tg Exp $ */
2 /* $OpenBSD: wmemcmp.c,v 1.4 2005/08/08 08:05:37 espie Exp $ */
3 /* $NetBSD: wmemcmp.c,v 1.3 2003/04/06 18:33:23 tshiozak Exp $ */
4
5 /*-
6 * Copyright (c)1999 Citrus Project,
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * citrus Id: wmemcmp.c,v 1.2 2000/12/20 14:08:31 itojun Exp
31 */
32
33 #include <wchar.h>
34
35 int
wmemcmp(const wchar_t * s1,const wchar_t * s2,size_t n)36 wmemcmp(const wchar_t *s1, const wchar_t *s2, size_t n)
37 {
38 size_t i;
39
40 for (i = 0; i < n; i++) {
41 if (*s1 != *s2) {
42 return *(const wchar_t *)s1 >
43 *(const wchar_t *)s2 ? 1 : -1;
44 }
45 s1++;
46 s2++;
47 }
48 return 0;
49 }
50