Subversion Repositories PlanixRsrch.SVN

/*
 * Copyright 2019, The PLANIX Project
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
 */

#include "mavl.h"

int mavl_foreach_lr(struct mavlnode *n, int (*callback)(void *,void *),void *cbpriv)
{
        if (!n)
                return 1;
        if (!mavl_foreach_lr(n->left,callback,cbpriv))
                return 0;
        if (!callback(cbpriv,mavlnode_dataptr(n)))
                return 0;
        return mavl_foreach_lr(n->right,callback,cbpriv);

}

int mavl_foreach_rl(struct mavlnode *n, int (*callback)(void *,void *),void *cbpriv)
{
        if (!n)
                return 1;
        if (!mavl_foreach_rl(n->right,callback,cbpriv))
                return 0;
        if (!callback(cbpriv,mavlnode_dataptr(n)))
                return 0;
        return mavl_foreach_rl(n->left,callback,cbpriv);
}

void mavl_foreach(struct mavl *t, int (*callback)(void *,void *),void * cbpriv,int dir)
{
        if (dir)
                mavl_foreach_lr(t->root,callback,cbpriv);
        else
                mavl_foreach_rl(t->root,callback,cbpriv);
}