1 /*-
2 * Copyright (c)1999 Citrus Project,
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * citrus Id: wcsspn.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp
27 */
28
29 #include <sys/cdefs.h>
30 #if 0
31 #if defined(LIBC_SCCS) && !defined(lint)
32 __RCSID("$NetBSD: wcsspn.c,v 1.1 2000/12/23 23:14:37 itojun Exp $");
33 #endif /* LIBC_SCCS and not lint */
34 #endif
35 __FBSDID("$FreeBSD$");
36
37 #include <wchar.h>
38
39 size_t
wcsspn(const wchar_t * s,const wchar_t * set)40 wcsspn(const wchar_t *s, const wchar_t *set)
41 {
42 const wchar_t *p;
43 const wchar_t *q;
44
45 p = s;
46 while (*p) {
47 q = set;
48 while (*q) {
49 if (*p == *q)
50 break;
51 q++;
52 }
53 if (!*q)
54 goto done;
55 p++;
56 }
57
58 done:
59 return (p - s);
60 }
61