tfind.c revision 7257d1b4d25bfac0c802847390e98a464fd787ac
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Tree search algorithm, generalized from Knuth (6.2.2) Algorithm T.
*
* The NODE * arguments are declared in the lint files as char *,
* because the definition of NODE isn't available to the user.
*/
#include "lint.h"
#include <mtlib.h>
#include <search.h>
#include <thread.h>
#include <synch.h>
/* tfind - find a node, or return 0 */
/*
* ky is Key to be located
* rtp is the Address of the root of the tree
* compar is the Comparison function
*/
void *
int (*compar)(const void *, const void *))
{
return (NULL);
if (r == 0)
return ((void *)*rootp); /* Key found */
rootp = (r < 0) ?
}
return (NULL);
}