rbtree
view src/rbtree.h @ 15:1b77b72688fe
- fixed bug in rb_init making it ignore comparison functions other than the builtin
- fixed rb_find and rb_findi return type, which should be struct rbnode*, not void*
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Sun, 02 Nov 2014 11:00:27 +0200 |
| parents | 5b955b3a4675 |
| children |
line source
1 /*
2 rbtree - simple balanced binary search tree (red-black tree) library.
3 Copyright (C) 2011-2014 John Tsiombikas <nuclear@member.fsf.org>
5 rbtree is free software, feel free to use, modify, and redistribute it, under
6 the terms of the 3-clause BSD license. See COPYING for details.
7 */
8 #ifndef RBTREE_H_
9 #define RBTREE_H_
11 struct rbtree;
14 struct rbnode {
15 void *key, *data;
16 int red;
17 struct rbnode *left, *right;
18 struct rbnode *next; /* for iterator stack */
19 };
22 typedef void *(*rb_alloc_func_t)(size_t);
23 typedef void (*rb_free_func_t)(void*);
25 typedef int (*rb_cmp_func_t)(const void*, const void*);
26 typedef void (*rb_del_func_t)(struct rbnode*, void*);
28 #define RB_KEY_ADDR (rb_cmp_func_t)(0)
29 #define RB_KEY_INT (rb_cmp_func_t)(1)
30 #define RB_KEY_STRING (rb_cmp_func_t)(3)
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
37 struct rbtree *rb_create(rb_cmp_func_t cmp_func);
38 void rb_free(struct rbtree *rb);
40 int rb_init(struct rbtree *rb, rb_cmp_func_t cmp_func);
41 void rb_destroy(struct rbtree *rb);
43 void rb_set_allocator(struct rbtree *rb, rb_alloc_func_t alloc, rb_free_func_t free);
44 void rb_set_compare_func(struct rbtree *rb, rb_cmp_func_t func);
45 void rb_set_delete_func(struct rbtree *rb, rb_del_func_t func, void *cls);
46 /* TODO add user deep copy function */
48 void rb_clear(struct rbtree *rb);
49 int rb_copy(struct rbtree *dest, struct rbtree *src);
51 int rb_size(struct rbtree *rb);
53 int rb_insert(struct rbtree *rb, void *key, void *data);
54 int rb_inserti(struct rbtree *rb, int key, void *data);
56 int rb_delete(struct rbtree *rb, void *key);
57 int rb_deletei(struct rbtree *rb, int key);
59 struct rbnode *rb_find(struct rbtree *rb, void *key);
60 struct rbnode *rb_findi(struct rbtree *rb, int key);
62 void rb_foreach(struct rbtree *rb, void (*func)(struct rbnode*, void*), void *cls);
64 struct rbnode *rb_root(struct rbtree *rb);
66 void rb_begin(struct rbtree *rb);
67 struct rbnode *rb_next(struct rbtree *rb);
69 void *rb_node_key(struct rbnode *node);
70 int rb_node_keyi(struct rbnode *node);
71 void *rb_node_data(struct rbnode *node);
73 #ifdef __cplusplus
74 }
75 #endif
78 #endif /* RBTREE_H_ */