/* tree.h - declare structures used by tree library * * vix 22jan93 [revisited; uses RCS, ANSI, POSIX; has bug fixes] * vix 27jun86 [broken out of tree.c] * * $Id: tree.h,v 1.4 1997/11/03 20:05:40 wessels Exp $ */#ifndef	_TREE_H_INCLUDED#define	_TREE_H_INCLUDEDtypedef struct tree_s {    void *data;    struct tree_s *left, *right;    int bal;} tree;typedef int BTREE_CMP(void *, void *);typedef int BTREE_UAR(void *);void tree_init(tree **);void *tree_srch(tree **, BTREE_CMP *, void *);void *tree_add(tree **, int (*)(), void *, BTREE_UAR *);int tree_delete(tree **, BTREE_CMP *, void *, BTREE_UAR *);int tree_trav(tree **, BTREE_UAR *);void tree_mung(tree **, BTREE_UAR *);#endif /* _TREE_H_INCLUDED */