1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c)1999 Citrus Project,
5 * All rights reserved.
6 *
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.
15 *
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.
27 *
28 * citrus Id: wcsspn.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp
29 */
30
31 #include <sys/cdefs.h>
32 #if 0
33 #if defined(LIBC_SCCS) && !defined(lint)
34 __RCSID("$NetBSD: wcsspn.c,v 1.1 2000/12/23 23:14:37 itojun Exp $");
35 #endif /* LIBC_SCCS and not lint */
36 #endif
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