/*	$OpenPackages$ */
/*	$OpenBSD: lstForEachFrom.c,v 1.18 2007/09/16 09:46:14 espie Exp $	*/
/*	$NetBSD: lstForEachFrom.c,v 1.5 1996/11/06 17:59:42 christos Exp $	*/

/*
 * 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. 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.
 */

/*-
 * lstForEachFrom.c --
 *	Perform a given function on all elements of a list starting from
 *	a given point.
 */

#include	"lstInt.h"
#include	<stdlib.h>

/*-
 *-----------------------------------------------------------------------
 * Lst_ForEachFrom --
 *	Apply the given function to each element of the given list. The
 *	function should return 0 if traversal should continue and non-
 *	zero if it should abort.
 *
 * Side Effects:
 *	Only those created by the passed-in function.
 *-----------------------------------------------------------------------
 */
void
Lst_ForEachFrom(LstNode ln, ForEachProc proc, void *d)
{
	LstNode	tln;

	for (tln = ln; tln != NULL; tln = tln->nextPtr)
		(*proc)(tln->datum, d);
}

void
Lst_Every(Lst l, SimpleProc proc)
{
	LstNode tln;

	for (tln = l->firstPtr; tln != NULL; tln = tln->nextPtr)
		(*proc)(tln->datum);
}

void
Lst_ForEachNodeWhile(Lst l, ForEachNodeWhileProc proc, void *d)
{
	    LstNode it;

	    for (it = l->firstPtr; it != NULL; it = it->nextPtr)
		    if ((*proc)(it, d) == 0)
				return;
}