1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /* Copyright (c) 1984 AT&T */
23 /* All Rights Reserved */
24
25 #pragma ident "%Z%%M% %I% %E% SMI" /* from S5R2 1.2 */
26
27 /*LINTLIBRARY*/
28 /*
29 * Return the number of characters in the maximum leading segment
30 * of string which consists solely of characters from charset.
31 */
32 int
strspn(string,charset)33 strspn(string, charset)
34 char *string;
35 register char *charset;
36 {
37 register char *p, *q;
38
39 for(q=string; *q != '\0'; ++q) {
40 for(p=charset; *p != '\0' && *p != *q; ++p)
41 ;
42 if(*p == '\0')
43 break;
44 }
45 return(q-string);
46 }
47