library for inclusion into tinc (http://tinc.nl.linux.org/) by
Guus Sliepen <guus@sliepen.eu.org>.
- $Id: avl_tree.h,v 1.1.2.5 2002/06/21 10:11:11 guus Exp $
+ $Id: avl_tree.h,v 1.1.2.6 2002/09/09 21:49:16 guus Exp $
*/
#define __AVL_TREE_H__
#ifndef AVL_DEPTH
- #ifndef AVL_COUNT
- #define AVL_DEPTH
- #endif
+#ifndef AVL_COUNT
+#define AVL_DEPTH
+#endif
#endif
typedef struct avl_node_t {
- /* Linked list part */
+ /* Linked list part */
- struct avl_node_t *next;
- struct avl_node_t *prev;
+ struct avl_node_t *next;
+ struct avl_node_t *prev;
- /* Tree part */
+ /* Tree part */
- struct avl_node_t *parent;
- struct avl_node_t *left;
- struct avl_node_t *right;
+ struct avl_node_t *parent;
+ struct avl_node_t *left;
+ struct avl_node_t *right;
#ifdef AVL_COUNT
- unsigned int count;
+ unsigned int count;
#endif
#ifdef AVL_DEPTH
- unsigned char depth;
+ unsigned char depth;
#endif
- /* Payload */
+ /* Payload */
- void *data;
+ void *data;
} avl_node_t;
typedef struct avl_tree_t {
- /* Linked list part */
+ /* Linked list part */
- avl_node_t *head;
- avl_node_t *tail;
+ avl_node_t *head;
+ avl_node_t *tail;
- /* Tree part */
+ /* Tree part */
- avl_node_t *root;
+ avl_node_t *root;
- avl_compare_t compare;
- avl_action_t delete;
+ avl_compare_t compare;
+ avl_action_t delete;
} avl_tree_t;
extern void avl_free_tree(avl_tree_t *);
extern avl_node_t *avl_alloc_node(void);
-extern void avl_free_node(avl_tree_t *tree, avl_node_t *);
+extern void avl_free_node(avl_tree_t * tree, avl_node_t *);
/* Insertion and deletion */
extern void avl_insert_after(avl_tree_t *, avl_node_t *, avl_node_t *);
extern avl_node_t *avl_unlink(avl_tree_t *, void *);
-extern void avl_unlink_node(avl_tree_t *tree, avl_node_t *);
+extern void avl_unlink_node(avl_tree_t * tree, avl_node_t *);
extern void avl_delete(avl_tree_t *, void *);
extern void avl_delete_node(avl_tree_t *, avl_node_t *);
extern unsigned int avl_depth(avl_tree_t *);
#endif
-#endif /* __AVL_TREE_H__ */
+#endif /* __AVL_TREE_H__ */