lstSucc.c revision 236769
1236769Sobrien/* $NetBSD: lstSucc.c,v 1.13 2008/12/13 15:19:29 dsl Exp $ */ 2236769Sobrien 3236769Sobrien/* 4236769Sobrien * Copyright (c) 1988, 1989, 1990, 1993 5236769Sobrien * The Regents of the University of California. All rights reserved. 6236769Sobrien * 7236769Sobrien * This code is derived from software contributed to Berkeley by 8236769Sobrien * Adam de Boor. 9236769Sobrien * 10236769Sobrien * Redistribution and use in source and binary forms, with or without 11236769Sobrien * modification, are permitted provided that the following conditions 12236769Sobrien * are met: 13236769Sobrien * 1. Redistributions of source code must retain the above copyright 14236769Sobrien * notice, this list of conditions and the following disclaimer. 15236769Sobrien * 2. Redistributions in binary form must reproduce the above copyright 16236769Sobrien * notice, this list of conditions and the following disclaimer in the 17236769Sobrien * documentation and/or other materials provided with the distribution. 18236769Sobrien * 3. Neither the name of the University nor the names of its contributors 19236769Sobrien * may be used to endorse or promote products derived from this software 20236769Sobrien * without specific prior written permission. 21236769Sobrien * 22236769Sobrien * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23236769Sobrien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24236769Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25236769Sobrien * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26236769Sobrien * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27236769Sobrien * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28236769Sobrien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29236769Sobrien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30236769Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31236769Sobrien * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32236769Sobrien * SUCH DAMAGE. 33236769Sobrien */ 34236769Sobrien 35236769Sobrien#ifndef MAKE_NATIVE 36236769Sobrienstatic char rcsid[] = "$NetBSD: lstSucc.c,v 1.13 2008/12/13 15:19:29 dsl Exp $"; 37236769Sobrien#else 38236769Sobrien#include <sys/cdefs.h> 39236769Sobrien#ifndef lint 40236769Sobrien#if 0 41236769Sobrienstatic char sccsid[] = "@(#)lstSucc.c 8.1 (Berkeley) 6/6/93"; 42236769Sobrien#else 43236769Sobrien__RCSID("$NetBSD: lstSucc.c,v 1.13 2008/12/13 15:19:29 dsl Exp $"); 44236769Sobrien#endif 45236769Sobrien#endif /* not lint */ 46236769Sobrien#endif 47236769Sobrien 48236769Sobrien/*- 49236769Sobrien * LstSucc.c -- 50236769Sobrien * return the successor to a given node 51236769Sobrien */ 52236769Sobrien 53236769Sobrien#include "lstInt.h" 54236769Sobrien 55236769Sobrien/*- 56236769Sobrien *----------------------------------------------------------------------- 57236769Sobrien * Lst_Succ -- 58236769Sobrien * Return the successor to the given node on its list. 59236769Sobrien * 60236769Sobrien * Results: 61236769Sobrien * The successor of the node, if it exists (note that on a circular 62236769Sobrien * list, if the node is the only one in the list, it is its own 63236769Sobrien * successor). 64236769Sobrien * 65236769Sobrien * Side Effects: 66236769Sobrien * None. 67236769Sobrien * 68236769Sobrien *----------------------------------------------------------------------- 69236769Sobrien */ 70236769SobrienLstNode 71236769SobrienLst_Succ(LstNode ln) 72236769Sobrien{ 73236769Sobrien if (ln == NULL) { 74236769Sobrien return NULL; 75236769Sobrien } else { 76236769Sobrien return (ln->nextPtr); 77236769Sobrien } 78236769Sobrien} 79236769Sobrien 80