src/conflicts.h

   1 /* Find and resolve or report lookahead conflicts for bison,
   2    Copyright (C) 2000, 2001, 2002, 2004, 2007, 2009 Free Software
   3    Foundation, Inc.
   4
   5    This file is part of Bison, the GNU Compiler Compiler.
   6
   7    This program is free software: you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation, either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef CONFLICTS_H_
  21 # define CONFLICTS_H_
  22 # include "state.h"
  23
  24 void conflicts_solve (void);
  25
  26 /**
  27  * Update state numbers recorded in internal arrays such that:
  28  *   - \c nstates_old is the old number of states.
  29  *   - Where \c i is the old state number, <tt>old_to_new[i]</tt> is either:
  30  *     - \c nstates_old if state \c i is removed because it is unreachable.
  31  *     - The new state number.
  32  *   - The highest new state number is the number of remaining states - 1.
  33  *   - The numerical order of the remaining states has not changed.
  34  */
  35 void conflicts_update_state_numbers (state_number old_to_new[],
  36                                      state_number nstates_old);
  37
  38 void conflicts_print (void);
  39 int conflicts_total_count (void);
  40 void conflicts_output (FILE *out);
  41 void conflicts_free (void);
  42
  43 /* Were there conflicts? */
  44 extern int expected_sr_conflicts;
  45 extern int expected_rr_conflicts;
  46 #endif /* !CONFLICTS_H_ */