xref: /onnv-gate/usr/src/lib/libbc/libc/gen/common/rindex.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
23*0Sstevel@tonic-gate 	  /* from UCB 4.1 80/12/21 */
24*0Sstevel@tonic-gate 
25*0Sstevel@tonic-gate /*
26*0Sstevel@tonic-gate  * Return the ptr in sp at which the character c last
27*0Sstevel@tonic-gate  * appears; NULL if not found
28*0Sstevel@tonic-gate  */
29*0Sstevel@tonic-gate 
30*0Sstevel@tonic-gate #define NULL 0
31*0Sstevel@tonic-gate 
32*0Sstevel@tonic-gate char *
rindex(sp,c)33*0Sstevel@tonic-gate rindex(sp, c)
34*0Sstevel@tonic-gate 	register char *sp, c;
35*0Sstevel@tonic-gate {
36*0Sstevel@tonic-gate 	register char *r;
37*0Sstevel@tonic-gate 
38*0Sstevel@tonic-gate 	r = NULL;
39*0Sstevel@tonic-gate 	do {
40*0Sstevel@tonic-gate 		if (*sp == c)
41*0Sstevel@tonic-gate 			r = sp;
42*0Sstevel@tonic-gate 	} while (*sp++);
43*0Sstevel@tonic-gate 	return (r);
44*0Sstevel@tonic-gate }
45