xref: /openbsd-src/usr.bin/make/lst.lib/lstForEachFrom.c (revision b2ea75c1b17e1a9a339660e7ed45cd24946b230e)
1 /*	$OpenPackages$ */
2 /*	$OpenBSD: lstForEachFrom.c,v 1.12 2001/05/29 12:53:46 espie Exp $	*/
3 /*	$NetBSD: lstForEachFrom.c,v 1.5 1996/11/06 17:59:42 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. All advertising materials mentioning features or use of this software
21  *    must display the following acknowledgement:
22  *	This product includes software developed by the University of
23  *	California, Berkeley and its contributors.
24  * 4. Neither the name of the University nor the names of its contributors
25  *    may be used to endorse or promote products derived from this software
26  *    without specific prior written permission.
27  *
28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38  * SUCH DAMAGE.
39  */
40 
41 /*-
42  * lstForEachFrom.c --
43  *	Perform a given function on all elements of a list starting from
44  *	a given point.
45  */
46 
47 #include	"lstInt.h"
48 #include	<stdlib.h>
49 
50 /*-
51  *-----------------------------------------------------------------------
52  * Lst_ForEachFrom --
53  *	Apply the given function to each element of the given list. The
54  *	function should return 0 if traversal should continue and non-
55  *	zero if it should abort.
56  *
57  * Side Effects:
58  *	Only those created by the passed-in function.
59  *-----------------------------------------------------------------------
60  */
61 void
62 Lst_ForEachFrom(ln, proc, d)
63     LstNode		ln;
64     ForEachProc 	proc;
65     void		*d;
66 {
67     LstNode	tln;
68 
69     for (tln = ln; tln != NULL; tln = tln->nextPtr)
70 	(*proc)(tln->datum, d);
71 }
72 
73 void
74 Lst_Every(l, proc)
75     Lst 	l;
76     SimpleProc	proc;
77 {
78     LstNode tln;
79 
80     for (tln = l->firstPtr; tln != NULL; tln = tln->nextPtr)
81 	(*proc)(tln->datum);
82 }
83 
84