blob: d118ffd16d3d776be746bfb5943cb2c3238eb9f0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
/* #pragma lib "libavl.a" */
/* #pragma src "/sys/src/libavl" */
AUTOLIB(avl)
typedef struct Avl Avl;
typedef struct Avltree Avltree;
typedef struct Avlwalk Avlwalk;
/* #pragma incomplete Avltree */
/* #pragma incomplete Avlwalk */
struct Avl
{
Avl *p; /* parent */
Avl *n[2]; /* children */
int bal; /* balance bits */
};
Avl *avlnext(Avlwalk *walk);
Avl *avlprev(Avlwalk *walk);
Avlwalk *avlwalk(Avltree *tree);
void deleteavl(Avltree *tree, Avl *key, Avl **oldp);
void endwalk(Avlwalk *walk);
void insertavl(Avltree *tree, Avl *new, Avl **oldp);
Avl *lookupavl(Avltree *tree, Avl *key);
Avltree *mkavltree(int(*cmp)(Avl*, Avl*));
|