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bullseye
Modules/rotatingtree.h
27 строк
924 B
Huw Jones
Imported Upstream version 3.9.2
21 мар 2022, 14:02
21 мар 2022, 14:02
0946962
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/* "Rotating trees" (Armin Rigo) * * Google "splay trees" for the general idea. * * It's a dict-like data structure that works best when accesses are not * random, but follow a strong pattern. The one implemented here is for * access patterns where the same small set of keys is looked up over * and over again, and this set of keys evolves slowly over time. */ #include <stdlib.h> #define EMPTY_ROTATING_TREE ((rotating_node_t *)NULL) typedef struct rotating_node_s rotating_node_t; typedef int (*rotating_tree_enum_fn) (rotating_node_t *node, void *arg); struct rotating_node_s { void *key; rotating_node_t *left; rotating_node_t *right; }; void RotatingTree_Add(rotating_node_t **root, rotating_node_t *node); rotating_node_t* RotatingTree_Get(rotating_node_t **root, void *key); int RotatingTree_Enum(rotating_node_t *root, rotating_tree_enum_fn enumfn, void *arg);