#ifndef __TREE_H #define __TREE_H typedef struct { void *root; int (*compare)(const void *, const void *); void (*free)(void *); } tree_t; // Routines for managing the execution record using POSIX binary search trees. bool tree_create(tree_t **tree, int (*compare)(const void *, const void *), void (*free)(void *)); bool tree_destroy(tree_t *tree); bool tree_walk(tree_t *tree, void (*function)(const void *)); bool tree_add(tree_t *tree, const void *data, void ***node); bool tree_find(tree_t *tree, const void *data, void ***node); #else #warning tree.h multiple inclusion #endif