2 * Copyright (c) 1988, 1989, 1990, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. 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.
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
36 * $FreeBSD: src/usr.bin/make/lst.lib/lstFindFrom.c,v 1.7 1999/08/28 01:03:50 peter Exp $
37 * $DragonFly: src/usr.bin/make/lst.lib/Attic/lstFindFrom.c,v 1.3 2003/11/03 19:31:31 eirikn Exp $
39 * @(#)lstFindFrom.c 8.1 (Berkeley) 6/6/93
44 * Find a node on a list from a given starting point. Used by Lst_Find.
50 *-----------------------------------------------------------------------
52 * Search for a node starting and ending with the given one on the
53 * given list using the passed datum and comparison function to
54 * determine when it has been found.
57 * The found node or NILLNODE
62 *-----------------------------------------------------------------------
65 Lst_FindFrom (l, ln, d, cProc)
68 register ClientData d;
69 register int (*cProc)(ClientData, ClientData);
71 register ListNode tln;
72 Boolean found = FALSE;
74 if (!LstValid (l) || LstIsEmpty (l) || !LstNodeValid (ln, l)) {
81 if ((*cProc) (tln->datum, d) == 0) {
87 } while (tln != (ListNode)ln && tln != NilListNode);
90 return ((LstNode)tln);