#define SHIFT_IS_DISABLED(Shifts, Shift) \
(Shifts->shifts[Shift] == 0)
+/* Return the state such these SHIFTS contain a shift/goto to it on
+ SYMBOL. Aborts if none found. */
+struct state_s;
+struct state_s *shifts_to PARAMS ((shifts_t *shifts, symbol_number_t s));
/*-------.
| Errs. |