src/reduce.h

   1 /* Grammar reduction for Bison.
   2
   3    Copyright (C) 2000, 2001, 2002, 2007, 2009 Free Software Foundation,
   4    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 REDUCE_H_
  22 # define REDUCE_H_
  23
  24 void reduce_grammar (void);
  25 void reduce_output (FILE *out);
  26 bool reduce_token_unused_in_grammar (symbol_number i);
  27 bool reduce_nonterminal_useless_in_grammar (symbol_number i);
  28 void reduce_free (void);
  29
  30 extern symbol_number nuseless_nonterminals;
  31 extern rule_number nuseless_productions;
  32 #endif /* !REDUCE_H_ */