1 /* Match rules with nonterminals for bison,
2 Copyright 1984, 1989, 2000 Free Software Foundation, Inc.
4 This file is part of Bison, the GNU Compiler Compiler.
6 Bison is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 Bison is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with Bison; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
24 extern short **derives
;
26 /* set_derives finds, for each variable (nonterminal), which rules can
27 derive it. It sets up the value of derives so that derives[i -
28 ntokens] points to a vector of rule numbers, terminated with -1.
31 void set_derives
PARAMS((void));
32 void free_derives
PARAMS((void));
34 #endif /* !DERIVES_H_ */