tools/llvm: Do not build with symbols
[minix3.git] / lib / libc / string / wmemcmp.c
blobf0055a556569924814e40a70ffec82045ed71075
1 /* $NetBSD: wmemcmp.c,v 1.7 2012/06/25 22:32:46 abs Exp $ */
3 /*-
4 * Copyright (c)1999 Citrus Project,
5 * All rights reserved.
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.
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.
28 * citrus Id: wmemcmp.c,v 1.2 2000/12/20 14:08:31 itojun Exp
31 #include <sys/cdefs.h>
32 #if defined(LIBC_SCCS) && !defined(lint)
33 __RCSID("$NetBSD: wmemcmp.c,v 1.7 2012/06/25 22:32:46 abs Exp $");
34 #endif /* LIBC_SCCS and not lint */
36 #include <assert.h>
37 #include <wchar.h>
38 #include "runetype_local.h"
40 int
41 wmemcmp(const wchar_t *s1, const wchar_t *s2, size_t n)
43 size_t i;
45 _DIAGASSERT(s1 != NULL);
46 _DIAGASSERT(s2 != NULL);
48 for (i = 0; i < n; i++) {
49 if (*s1 != *s2) {
50 /* wchar might be unsigned */
51 return *(const __nbrune_t *)s1 >
52 *(const __nbrune_t *)s2 ? 1 : -1;
54 s1++;
55 s2++;
57 return 0;