#ifndef VIETER_TREE
#define VIETER_TREE

#include <stdint.h>
#include <stdlib.h>

typedef struct vieter_tree vieter_tree;

typedef enum vieter_tree_error {
  vieter_tree_ok = 0,
  vieter_tree_already_present = 1,
  vieter_tree_not_present = 2
} vieter_tree_error;

vieter_tree *vieter_tree_init();

void vieter_tree_free(vieter_tree *tree);

vieter_tree_error vieter_tree_insert(vieter_tree *tree, uint64_t key,
                                     void *data);

vieter_tree_error vieter_tree_search(void **out, vieter_tree *tree,
                                     uint64_t key);

vieter_tree_error vieter_tree_remove(void **out, vieter_tree *tree,
                                     uint64_t key);

uint64_t vieter_tree_size(vieter_tree *tree);

#endif