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