maint: prepare to use date ranges in copyright notices.

[bison.git] / src / derives.h

/* Match rules with nonterminals for bison,

   Copyright (C) 1984, 1989, 2000, 2001, 2002, 2009, 2010 Free
   Software Foundation, Inc.

   This file is part of Bison, the GNU Compiler Compiler.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#ifndef DERIVES_H_
# define DERIVES_H_

# include "gram.h"

/* DERIVES[SYMBOL - NTOKENS] points to a vector of the rules that
   SYMBOL derives, terminated with NULL.  */
extern rule ***derives;

/* Compute DERIVES.  */

void derives_compute (void);
void derives_free (void);

#endif /* !DERIVES_H_ */