#ifndef BST_H
#define BST_H

typedef struct {
  struct node_t *root;
  unsigned long count;
  
  int (*printfn) (const void *);
  int (*comparefn) (const void *, const void *);

} bst;


int initBST (bst **, int (*) (const void *),
             int (*) (const void *, const void *));
             

int addBST (bst *, const void *);
int printBST (const bst *);


#define LEFT         1
#define RIGHT       -1
#define MATCH        0


#define NULL_BST            1
#define NULL_ITEM_BST       2
#define DUPLICATE_ITEM_BST  3
#define BAD_COMPARE_BST     4

#endif