strrchr.c revision 1542
11556Srgrimes/* 21556Srgrimes * Copyright (c) 1988, 1993 31556Srgrimes * The Regents of the University of California. All rights reserved. 41556Srgrimes * 51556Srgrimes * Redistribution and use in source and binary forms, with or without 61556Srgrimes * modification, are permitted provided that the following conditions 71556Srgrimes * are met: 81556Srgrimes * 1. Redistributions of source code must retain the above copyright 91556Srgrimes * notice, this list of conditions and the following disclaimer. 101556Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111556Srgrimes * notice, this list of conditions and the following disclaimer in the 121556Srgrimes * documentation and/or other materials provided with the distribution. 131556Srgrimes * 3. All advertising materials mentioning features or use of this software 141556Srgrimes * must display the following acknowledgement: 151556Srgrimes * This product includes software developed by the University of 161556Srgrimes * California, Berkeley and its contributors. 171556Srgrimes * 4. Neither the name of the University nor the names of its contributors 181556Srgrimes * may be used to endorse or promote products derived from this software 191556Srgrimes * without specific prior written permission. 201556Srgrimes * 211556Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221556Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231556Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241556Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251556Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261556Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271556Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281556Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291556Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301556Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311556Srgrimes * SUCH DAMAGE. 321556Srgrimes */ 331556Srgrimes 3420425Ssteve#if defined(LIBC_SCCS) && !defined(lint) 351556Srgrimesstatic char sccsid[] = "@(#)rindex.c 8.1 (Berkeley) 6/4/93"; 361556Srgrimes#endif /* LIBC_SCCS and not lint */ 371556Srgrimes 381556Srgrimes#include <stddef.h> 391556Srgrimes#include <string.h> 4036150Scharnier 4136150Scharnierchar * 4236150Scharnier#ifdef STRRCHR 431556Srgrimesstrrchr(p, ch) 4499110Sobrien#else 4599110Sobrienrindex(p, ch) 461556Srgrimes#endif 4717987Speter register const char *p; 481556Srgrimes register int ch; 4917987Speter{ 5017987Speter register char *save; 511556Srgrimes 5217525Sache for (save = NULL;; ++p) { 5359214Simp if (*p == ch) 5417525Sache save = (char *)p; 551556Srgrimes if (!*p) 561556Srgrimes return(save); 571556Srgrimes } 581556Srgrimes /* NOTREACHED */ 591556Srgrimes} 601556Srgrimes