/*
 * <one line to give the library's name and an idea of what it does.>
 * Copyright (C) 2013  <copyright holder> <email>
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 */

#pragma once

#include "../tree_binary.hpp"
#include "../../error.hpp"

namespace tree {

data_t& BinaryTree::find(key_t key) {
    if(!root_.is_not_leaf()) {
      throw not_found_exception(key);
    }
    
    element_t* tmp_element = root_;
    do {
      if(tmp_element->key() < tmp_element.left().key()) {
	tmp_element = tmp_element->left();
      } else {
	tmp_element = tmp_element->right();
      }
    } while(tmp_element.is_not_leaf());
    
    if(tmp_element->key() == key) {
      return tmp_element->data();
    } else {
      throw not_found_exception(key);
    }
}

} // end tree namespace