1/* Find and resolve or report lookahead conflicts for bison,
2
3 Copyright (C) 2000-2002, 2004, 2007, 2009-2015, 2018-2019 Free
4 Software Foundation, Inc.
5
6 This file is part of Bison, the GNU Compiler Compiler.
7
8 This program is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20
21#ifndef CONFLICTS_H_
22# define CONFLICTS_H_
23# include "state.h"
24
25void conflicts_solve (void);
26
27/**
28 * Update state numbers recorded in internal arrays such that:
29 * - \c nstates_old is the old number of states.
30 * - Where \c i is the old state number, <tt>old_to_new[i]</tt> is either:
31 * - \c nstates_old if state \c i is removed because it is unreachable.
32 * - The new state number.
33 * - The highest new state number is the number of remaining states - 1.
34 * - The numerical order of the remaining states has not changed.
35 */
36void conflicts_update_state_numbers (state_number old_to_new[],
37 state_number nstates_old);
38
39void conflicts_print (void);
40int conflicts_total_count (void);
41void conflicts_output (FILE *out);
42void conflicts_free (void);
43
44/* Were there conflicts? */
45extern int expected_sr_conflicts;
46extern int expected_rr_conflicts;
47
48#endif /* !CONFLICTS_H_ */
49