xref: /openbsd-src/usr.bin/make/lst.lib/lstDupl.c (revision 43003dfe3ad45d1698bed8a37f2b0f5b14f20d4f)
1 /*	$OpenPackages$ */
2 /*	$OpenBSD: lstDupl.c,v 1.21 2007/09/16 09:46:14 espie Exp $	*/
3 /*	$NetBSD: lstDupl.c,v 1.6 1996/11/06 17:59:37 christos Exp $	*/
4 
5 /*
6  * Copyright (c) 1988, 1989, 1990, 1993
7  *	The Regents of the University of California.  All rights reserved.
8  *
9  * This code is derived from software contributed to Berkeley by
10  * Adam de Boor.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  * 3. Neither the name of the University nor the names of its contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  */
36 
37 /*-
38  * listDupl.c --
39  *	Duplicate a list. This includes duplicating the individual
40  *	elements.
41  */
42 
43 #include    "lstInt.h"
44 #include <stddef.h>
45 
46 /*-
47  *-----------------------------------------------------------------------
48  * Lst_Clone --
49  *	Duplicate an entire list. If a function to copy a void * is
50  *	given, the individual client elements will be duplicated as well.
51  *
52  * Results:
53  *	returns the new list.
54  *
55  * Side Effects:
56  *	The new list is created.
57  *-----------------------------------------------------------------------
58  */
59 Lst
60 Lst_Clone(Lst nl, Lst l, DuplicateProc copyProc)
61 {
62 	LstNode ln;
63 
64 	Lst_Init(nl);
65 
66 	for (ln = l->firstPtr; ln != NULL; ln = ln->nextPtr) {
67 		if (copyProc != NOCOPY)
68 			Lst_AtEnd(nl, (*copyProc)(ln->datum));
69 		else
70 			Lst_AtEnd(nl, ln->datum);
71 	}
72 	return nl;
73 }
74 
75