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/* Match rules with nonterminals for bison,
Copyright 1984, 1989, 2000 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
Bison 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 2, or (at your option)
any later version.
Bison 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 Bison; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef DERIVES_H_
# define DERIVES_H_
extern short **derives;
/* set_derives finds, for each variable (nonterminal), which rules can
derive it. It sets up the value of derives so that derives[i -
ntokens] points to a vector of rule numbers, terminated with -1.
*/
void set_derives PARAMS((void));
void free_derives PARAMS((void));
#endif /* !DERIVES_H_ */
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