xref: /netbsd-src/lib/libc/string/wcscspn.c (revision 383f218a51f871e96b69c7b297011fe9b39ad40e)
1*383f218aSitojun /*	$NetBSD: wcscspn.c,v 1.1 2000/12/23 23:14:36 itojun Exp $	*/
2*383f218aSitojun 
3*383f218aSitojun /*-
4*383f218aSitojun  * Copyright (c)1999 Citrus Project,
5*383f218aSitojun  * All rights reserved.
6*383f218aSitojun  *
7*383f218aSitojun  * Redistribution and use in source and binary forms, with or without
8*383f218aSitojun  * modification, are permitted provided that the following conditions
9*383f218aSitojun  * are met:
10*383f218aSitojun  * 1. Redistributions of source code must retain the above copyright
11*383f218aSitojun  *    notice, this list of conditions and the following disclaimer.
12*383f218aSitojun  * 2. Redistributions in binary form must reproduce the above copyright
13*383f218aSitojun  *    notice, this list of conditions and the following disclaimer in the
14*383f218aSitojun  *    documentation and/or other materials provided with the distribution.
15*383f218aSitojun  *
16*383f218aSitojun  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17*383f218aSitojun  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18*383f218aSitojun  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19*383f218aSitojun  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20*383f218aSitojun  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21*383f218aSitojun  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22*383f218aSitojun  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23*383f218aSitojun  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24*383f218aSitojun  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25*383f218aSitojun  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26*383f218aSitojun  * SUCH DAMAGE.
27*383f218aSitojun  *
28*383f218aSitojun  *	citrus Id: wcscspn.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp
29*383f218aSitojun  */
30*383f218aSitojun 
31*383f218aSitojun #include <sys/cdefs.h>
32*383f218aSitojun #if defined(LIBC_SCCS) && !defined(lint)
33*383f218aSitojun __RCSID("$NetBSD: wcscspn.c,v 1.1 2000/12/23 23:14:36 itojun Exp $");
34*383f218aSitojun #endif /* LIBC_SCCS and not lint */
35*383f218aSitojun 
36*383f218aSitojun #include <wchar.h>
37*383f218aSitojun 
38*383f218aSitojun size_t
39*383f218aSitojun wcscspn(s, set)
40*383f218aSitojun 	const wchar_t *s;
41*383f218aSitojun 	const wchar_t *set;
42*383f218aSitojun {
43*383f218aSitojun 	const wchar_t *p;
44*383f218aSitojun 	const wchar_t *q;
45*383f218aSitojun 
46*383f218aSitojun 	p = s;
47*383f218aSitojun 	while (*p) {
48*383f218aSitojun 		q = set;
49*383f218aSitojun 		while (*q) {
50*383f218aSitojun 			if (*p == *q)
51*383f218aSitojun 				goto done;
52*383f218aSitojun 			q++;
53*383f218aSitojun 		}
54*383f218aSitojun 		p++;
55*383f218aSitojun 	}
56*383f218aSitojun 
57*383f218aSitojun done:
58*383f218aSitojun 	return (p - s);
59*383f218aSitojun }
60