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btreenode.cpp    67 lines (58 with data), 2.1 kB

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/***************************************************************************
* Copyright (C) 2004-2005 by Daniel Clarke *
* daniel.jc@gmail.com *
* *
* 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 2 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, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "btreenode.h"
#include "pic14.h"
BTreeNode::BTreeNode()
{
m_parent = 0L;
m_left = 0L;
m_right = 0L;
m_type = unset;
}
BTreeNode::BTreeNode(BTreeNode *p, BTreeNode *l, BTreeNode *r)
{
m_parent = p;
m_left = l;
m_right = r;
}
BTreeNode::~BTreeNode()
{
// Must not delete children as might be unlinking!!! deleteChildren();
}
void BTreeNode::deleteChildren()
{
if (m_left)
{
m_left->deleteChildren();
delete m_left;
}
if (m_right)
{
m_right->deleteChildren();
delete m_right;
}
m_left = 0L;
m_right = 0L;
return;
}
// void BTreeNode::printTree()
// {
//
// }