1 |
|
|
/* $OpenBSD: wcsncmp.c,v 1.5 2015/09/12 16:23:14 guenther Exp $ */ |
2 |
|
|
/* $NetBSD: wcsncmp.c,v 1.5 2003/08/07 16:43:54 agc Exp $ */ |
3 |
|
|
|
4 |
|
|
/* |
5 |
|
|
* Copyright (c) 1989, 1993 |
6 |
|
|
* The Regents of the University of California. All rights reserved. |
7 |
|
|
* |
8 |
|
|
* Redistribution and use in source and binary forms, with or without |
9 |
|
|
* modification, are permitted provided that the following conditions |
10 |
|
|
* are met: |
11 |
|
|
* 1. Redistributions of source code must retain the above copyright |
12 |
|
|
* notice, this list of conditions and the following disclaimer. |
13 |
|
|
* 2. Redistributions in binary form must reproduce the above copyright |
14 |
|
|
* notice, this list of conditions and the following disclaimer in the |
15 |
|
|
* documentation and/or other materials provided with the distribution. |
16 |
|
|
* 3. Neither the name of the University nor the names of its contributors |
17 |
|
|
* may be used to endorse or promote products derived from this software |
18 |
|
|
* without specific prior written permission. |
19 |
|
|
* |
20 |
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
21 |
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
22 |
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
23 |
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
24 |
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
25 |
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
26 |
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
27 |
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
28 |
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
29 |
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
30 |
|
|
* SUCH DAMAGE. |
31 |
|
|
*/ |
32 |
|
|
|
33 |
|
|
#include <wchar.h> |
34 |
|
|
#include "locale/runetype.h" |
35 |
|
|
|
36 |
|
|
int |
37 |
|
|
wcsncmp(const wchar_t *s1, const wchar_t *s2, size_t n) |
38 |
|
|
{ |
39 |
|
|
|
40 |
|
|
if (n == 0) |
41 |
|
|
return (0); |
42 |
|
|
do { |
43 |
|
|
if (*s1 != *s2++) { |
44 |
|
|
/* XXX assumes wchar_t = int */ |
45 |
|
|
return (*(const rune_t *)s1 - |
46 |
|
|
*(const rune_t *)--s2); |
47 |
|
|
} |
48 |
|
|
if (*s1++ == 0) |
49 |
|
|
break; |
50 |
|
|
} while (--n != 0); |
51 |
|
|
return (0); |
52 |
|
|
} |
53 |
|
|
DEF_STRONG(wcsncmp); |