xref: /titanic_41/usr/src/lib/libbc/libc/gen/common/memchr.c (revision c2580b931007758eab8cb5ae8726ebe1588e259b)
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 1.1 */
26 
27 /*LINTLIBRARY*/
28 /*
29  * Return the ptr in sp at which the character c appears;
30  *   NULL if not found in n chars; don't stop at \0.
31  */
32 char *
33 memchr(sp, c, n)
34 register char *sp, c;
35 register int n;
36 {
37 	while (--n >= 0)
38 		if (*sp++ == c)
39 			return (--sp);
40 	return (0);
41 }
42