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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.
*
* @(#)lstDupl.c 8.1 (Berkeley) 6/6/93
*/
#ifndef lint
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#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 void * is
* given, the individual client elements will be duplicated as well.
*
* Results:
* The new Lst structure or NULL if failure.
*
* Side Effects:
* A new list is created.
*-----------------------------------------------------------------------
*/
Lst
Lst_Duplicate (l, copyProc)
Lst l; /* the list to duplicate */
/* A function to duplicate each void * */
void * (*copyProc)(void *);
{
register Lst nl;
register ListNode ln;
register List list = (List)l;
if (!LstValid (l)) {
return (NULL);
}
nl = Lst_Init (list->isCirc);
if (nl == NULL) {
return (NULL);
}
ln = list->firstPtr;
while (ln != NULL) {
if (copyProc != NOCOPY) {
if (Lst_AtEnd (nl, (*copyProc) (ln->datum)) == FAILURE) {
return (NULL);
}
} else if (Lst_AtEnd (nl, ln->datum) == FAILURE) {
return (NULL);
}
if (list->isCirc && ln == list->lastPtr) {
ln = NULL;
} else {
ln = ln->nextPtr;
}
}
return (nl);
}
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