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+/*
+ * 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. 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 8.1 (Berkeley) 6/6/93";
+#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);
+}
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