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77 lines
2.2 KiB
Objective-C
77 lines
2.2 KiB
Objective-C
/* Interface for Objective-C BinaryTree collection object
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Copyright (C) 1993, 1994, 1996 Free Software Foundation, Inc.
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Written by: R. Andrew McCallum <mccallum@gnu.ai.mit.edu>
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Created: 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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/*
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Binary Tree.
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Base class for smarter binary trees.
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*/
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#ifndef __BinaryTree_h_INCLUDE_GNU
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#define __BinaryTree_h_INCLUDE_GNU
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#include <objects/stdobjects.h>
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#include <objects/IndexedCollection.h>
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/* The <BinaryTreeComprising> protocol defines the interface to an object
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that may be an element in a BinaryTree.
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*/
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@protocol BinaryTreeComprising <NSObject>
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- leftNode;
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- rightNode;
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- parentNode;
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- (void) setLeftNode: (id <BinaryTreeComprising>)aNode;
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- (void) setRightNode: (id <BinaryTreeComprising>)aNode;
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- (void) setParentNode: (id <BinaryTreeComprising>)aNode;
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- binaryTree;
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- (void) setBinaryTree: anObject;
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@end
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#define NODE_IS_RIGHTCHILD(NODE) (NODE == [[NODE parentNode] rightNode])
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#define NODE_IS_LEFTCHILD(NODE) (NODE == [[NODE parentNode] leftNode])
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@interface BinaryTree : IndexedCollection
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{
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unsigned int _count;
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id _contents_root;
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}
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- nilNode;
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- rootNode;
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- leftmostNodeFromNode: aNode;
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- rightmostNodeFromNode: aNode;
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- (unsigned) depthOfNode: aNode;
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- (unsigned) heightOfNode: aNode;
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- (unsigned) nodeCountUnderNode: aNode;
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- leftRotateAroundNode: aNode;
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- rightRotateAroundNode: aNode;
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- binaryTreePrintForDebugger;
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@end
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#endif /* __BinaryTree_h_INCLUDE_GNU */
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