forked from KolibriOS/kolibrios
68 lines
2.0 KiB
C
68 lines
2.0 KiB
C
|
/*
|
||
|
|
* iAVLTree.h: Header file for AVLTrees with long integer keys.
|
||
|
|
* Copyright (C) 1998 Michael H. Buselli
|
||
|
|
*
|
||
|
|
* This library is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU Library General Public
|
||
|
|
* License as published by the Free Software Foundation; either
|
||
|
|
* version 2 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
|
||
|
|
* Library General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Library General Public
|
||
|
|
* License along with this library; if not, write to the Free
|
||
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||
|
|
*
|
||
|
|
* The author of this library can be reached at the following address:
|
||
|
|
* Michael H. Buselli
|
||
|
|
* 4334 N. Hazel St. #515
|
||
|
|
* Chicago, IL 60613-1456
|
||
|
|
*
|
||
|
|
* Or you can send email to <cosine@tezcat.com>.
|
||
|
|
* The official web page for this product is:
|
||
|
|
* http://www.tezcat.com/~cosine/pub/AVLTree/
|
||
|
|
*
|
||
|
|
* This is version 0.1.0 (alpha).
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _IAVLTREE_H_
|
||
|
|
#define _IAVLTREE_H_
|
||
|
|
|
||
|
|
|
||
|
|
typedef struct _iAVLNode {
|
||
|
|
long key;
|
||
|
|
long depth;
|
||
|
|
void *item;
|
||
|
|
struct _iAVLNode *parent;
|
||
|
|
struct _iAVLNode *left;
|
||
|
|
struct _iAVLNode *right;
|
||
|
|
} iAVLNode;
|
||
|
|
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
iAVLNode *top;
|
||
|
|
long count;
|
||
|
|
long (*getkey)(const void *item);
|
||
|
|
} iAVLTree;
|
||
|
|
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
const iAVLTree *avltree;
|
||
|
|
const iAVLNode *curnode;
|
||
|
|
} iAVLCursor;
|
||
|
|
|
||
|
|
|
||
|
|
extern iAVLTree *iAVLAllocTree (long (*getkey)(void const *item));
|
||
|
|
extern void iAVLFreeTree (iAVLTree *avltree, void (freeitem)(void *item));
|
||
|
|
extern int iAVLInsert (iAVLTree *avltree, void *item);
|
||
|
|
extern void *iAVLSearch (iAVLTree const *avltree, long key);
|
||
|
|
extern int iAVLDelete (iAVLTree *avltree, long key);
|
||
|
|
extern void *iAVLFirst (iAVLCursor *avlcursor, iAVLTree const *avltree);
|
||
|
|
extern void *iAVLNext (iAVLCursor *avlcursor);
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|