rec_rdelete
static int rec_rdelete __P((BTREE *, recno_t));
status = rec_rdelete(t, nrec);
status = rec_rdelete(t, t->bt_cursor.rcursor - 1);
static int rec_rdelete(BTREE *, recno_t);
status = rec_rdelete(t, nrec);
status = rec_rdelete(t, t->bt_cursor.rcursor - 1);