diff options
Diffstat (limited to '20120831/lst.lib/lstInsert.c')
| -rw-r--r-- | 20120831/lst.lib/lstInsert.c | 122 |
1 files changed, 0 insertions, 122 deletions
diff --git a/20120831/lst.lib/lstInsert.c b/20120831/lst.lib/lstInsert.c deleted file mode 100644 index 77187bb..0000000 --- a/20120831/lst.lib/lstInsert.c +++ /dev/null @@ -1,122 +0,0 @@ -/* $NetBSD: lstInsert.c,v 1.14 2009/01/23 21:26:30 dsl Exp $ */ - -/* - * Copyright (c) 1988, 1989, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Adam de Boor. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef MAKE_NATIVE -static char rcsid[] = "$NetBSD: lstInsert.c,v 1.14 2009/01/23 21:26:30 dsl Exp $"; -#else -#include <sys/cdefs.h> -#ifndef lint -#if 0 -static char sccsid[] = "@(#)lstInsert.c 8.1 (Berkeley) 6/6/93"; -#else -__RCSID("$NetBSD: lstInsert.c,v 1.14 2009/01/23 21:26:30 dsl Exp $"); -#endif -#endif /* not lint */ -#endif - -/*- - * LstInsert.c -- - * Insert a new datum before an old one - */ - -#include "lstInt.h" - -/*- - *----------------------------------------------------------------------- - * Lst_InsertBefore -- - * Insert a new node with the given piece of data before the given - * node in the given list. - * - * Input: - * l list to manipulate - * ln node before which to insert d - * d datum to be inserted - * - * Results: - * SUCCESS or FAILURE. - * - * Side Effects: - * the firstPtr field will be changed if ln is the first node in the - * list. - * - *----------------------------------------------------------------------- - */ -ReturnStatus -Lst_InsertBefore(Lst l, LstNode ln, void *d) -{ - ListNode nLNode; /* new lnode for d */ - ListNode lNode = ln; - List list = l; - - - /* - * check validity of arguments - */ - if (LstValid (l) && (LstIsEmpty (l) && ln == NULL)) - goto ok; - - if (!LstValid (l) || LstIsEmpty (l) || !LstNodeValid (ln, l)) { - return (FAILURE); - } - - ok: - PAlloc (nLNode, ListNode); - - nLNode->datum = d; - nLNode->useCount = nLNode->flags = 0; - - if (ln == NULL) { - if (list->isCirc) { - nLNode->prevPtr = nLNode->nextPtr = nLNode; - } else { - nLNode->prevPtr = nLNode->nextPtr = NULL; - } - list->firstPtr = list->lastPtr = nLNode; - } else { - nLNode->prevPtr = lNode->prevPtr; - nLNode->nextPtr = lNode; - - if (nLNode->prevPtr != NULL) { - nLNode->prevPtr->nextPtr = nLNode; - } - lNode->prevPtr = nLNode; - - if (lNode == list->firstPtr) { - list->firstPtr = nLNode; - } - } - - return (SUCCESS); -} - |
