xref: /titanic_41/usr/src/lib/libc/port/i18n/wscspn.c (revision 7257d1b4d25bfac0c802847390e98a464fd787ac)
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 (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1986 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 /*
33  * Return the number of characters in the maximum leading segment
34  * of string which consists solely of characters NOT from charset.
35  */
36 
37 #pragma weak _wcscspn = wcscspn
38 #pragma weak _wscspn = wscspn
39 
40 #include "lint.h"
41 #include <stdlib.h>
42 #include <wchar.h>
43 
44 size_t
wcscspn(const wchar_t * string,const wchar_t * charset)45 wcscspn(const wchar_t *string, const wchar_t *charset)
46 {
47 	const wchar_t *p, *q;
48 
49 	for (q = string; *q != 0; ++q) {
50 		for (p = charset; *p != 0 && *p != *q; ++p)
51 			;
52 		if (*p != 0)
53 			break;
54 	}
55 	return (q - string);
56 }
57 
58 size_t
wscspn(const wchar_t * string,const wchar_t * charset)59 wscspn(const wchar_t *string, const wchar_t *charset)
60 {
61 	return (wcscspn(string, charset));
62 }
63