find.c
1.14 KB
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/**
* \file
*
* \author Georg Hopp
*
* \copyright
* Copyright © 2012 Georg Hopp
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "tr/tree.h"
void *
TR_treeFind(TR_Tree this, const void * search, TR_TreeComp comp)
{
while (NULL != this) {
int comparison = comp(this->data, search);
if (0 < comparison) {
this = TR_TREE_LEFT(this);
continue;
}
if (0 > comparison) {
this = TR_TREE_RIGHT(this);
continue;
}
if (0 == comparison) {
break;
}
}
return NULL != this ? this->data : NULL;
}
// vim: set ts=4 sw=4: