together and GOTO_MAP[I - NTOKENS] is the index in FROM_STATE and
TO_STATE of the first of them. */
-typedef short int goto_number;
-# define GOTO_NUMBER_MAXIMUM SHRT_MAX
+typedef size_t goto_number;
+# define GOTO_NUMBER_MAXIMUM ((goto_number) -1)
extern goto_number *goto_map;
extern state_number *from_state;