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- /*
- * Copyright (c) 1988, 1989, 1990 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. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. 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 lint
- static char sccsid[] = "@(#)lstDupl.c 5.3 (Berkeley) 6/1/90";
- #endif /* not lint */
-
- /*-
- * listDupl.c --
- * Duplicate a list. This includes duplicating the individual
- * elements.
- */
-
- #include "lstInt.h"
-
- /*-
- *-----------------------------------------------------------------------
- * Lst_Duplicate --
- * Duplicate an entire list. If a function to copy a ClientData is
- * given, the individual client elements will be duplicated as well.
- *
- * Results:
- * The new Lst structure or NILLST if failure.
- *
- * Side Effects:
- * A new list is created.
- *-----------------------------------------------------------------------
- */
- Lst
- Lst_Duplicate (l, copyProc)
- Lst l; /* the list to duplicate */
- ClientData (*copyProc)(); /* A function to duplicate each ClientData */
- {
- register Lst nl;
- register ListNode ln;
- register List list = (List)l;
-
- if (!LstValid (l)) {
- return (NILLST);
- }
-
- nl = Lst_Init (list->isCirc);
- if (nl == NILLST) {
- return (NILLST);
- }
-
- ln = list->firstPtr;
- while (ln != NilListNode) {
- if (copyProc != NOCOPY) {
- if (Lst_AtEnd (nl, (*copyProc) (ln->datum)) == FAILURE) {
- return (NILLST);
- }
- } else if (Lst_AtEnd (nl, ln->datum) == FAILURE) {
- return (NILLST);
- }
-
- if (list->isCirc && ln == list->lastPtr) {
- ln = NilListNode;
- } else {
- ln = ln->nextPtr;
- }
- }
-
- return (nl);
- }
-