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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@101 72102866-910b-0410-8b05-ffd578937521
92 lines
2 KiB
Objective-C
92 lines
2 KiB
Objective-C
/* Implementation for Objective-C BinaryTreeNode object
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Copyright (C) 1993,1994 Free Software Foundation, Inc.
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Written by: R. Andrew McCallum <mccallum@gnu.ai.mit.edu>
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Date: May 1993
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This file is part of the GNU Objective C Class Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <objects/BinaryTreeNode.h>
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@implementation BinaryTreeNode
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+ (void) initialize
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{
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if (self == [BinaryTreeNode class])
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[self setVersion:0]; /* beta release */
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}
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- init
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{
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[super init];
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_left = _right = _parent = nil;
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return self;
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}
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- (void) encodeWithCoder: (Coder*)aCoder
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{
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[super encodeWithCoder:aCoder];
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[aCoder encodeObjectReference:_right withName:"Right BinaryTree Node"];
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[aCoder encodeObjectReference:_left withName:"Left BinaryTree Node"];
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[aCoder encodeObjectReference:_parent withName:"Parent BinaryTree Node"];
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}
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+ newWithCoder: (Coder*)aCoder
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{
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BinaryTreeNode *n = [super newWithCoder:aCoder];
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[aCoder decodeObjectAt:&(n->_right) withName:NULL];
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[aCoder decodeObjectAt:&(n->_left) withName:NULL];
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[aCoder decodeObjectAt:&(n->_parent) withName:NULL];
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return n;
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}
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- leftNode
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{
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return _left;
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}
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- rightNode
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{
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return _right;
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}
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- parentNode
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{
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return _parent;
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}
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- setLeftNode: aNode
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{
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_left = aNode;
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return self;
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}
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- setRightNode: aNode
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{
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_right = aNode;
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return self;
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}
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- setParentNode: aNode
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{
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_parent = aNode;
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return self;
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}
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@end
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