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/* Part of the bison parser generator,
Copyright (C) 2000, 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 NULLABLE_H_
# define NULLABLE_H_
/* A vector saying which nonterminals can expand into the null string.
NULLABLE[I - NTOKENS] is nonzero if symbol I can do so. */
extern bool *nullable;
/* Set up NULLABLE. */
extern void nullable_compute (void);
/* Free NULLABLE. */
extern void nullable_free (void);
#endif /* !NULLABLE_H_ */
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