/* Table traverser functions. */
void tbl_t_init (struct tbl_traverser *, struct tbl_table *);
void *tbl_t_first (struct tbl_traverser *, struct tbl_table *);
void *tbl_t_last (struct tbl_traverser *, struct tbl_table *);
void *tbl_t_find (struct tbl_traverser *, struct tbl_table *, void *);
void *tbl_t_insert (struct tbl_traverser *, struct tbl_table *, void *);
void *tbl_t_copy (struct tbl_traverser *, const struct tbl_traverser *);