Add native Windows binary for bison.

bison/src/bison/2.4.1/bison-2.4.1-src/src/closure.h

+/* Subroutines for bison
+
+   Copyright (C) 1984, 1989, 2000, 2001, 2002, 2007 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 CLOSURE_H_
+# define CLOSURE_H_
+
+# include "gram.h"
+
+/* Allocates the itemset and ruleset vectors, and precomputes useful
+   data so that closure can be called.  n is the number of elements to
+   allocate for itemset.  */
+
+void new_closure (unsigned int n);
+
+
+/* Given the kernel (aka core) of a state (a sorted vector of item numbers
+   ITEMS, of length N), set up RULESET and ITEMSET to indicate what
+   rules could be run and which items could be accepted when those
+   items are the active ones.
+
+   RULESET contains a bit for each rule.  CLOSURE sets the bits for
+   all rules which could potentially describe the next input to be
+   read.
+
+   ITEMSET is a sorted vector of item numbers; NITEMSET is its size
+   (actually, points to just beyond the end of the part of it that is
+   significant).  CLOSURE places there the indices of all items which
+   represent units of input that could arrive next.  */
+
+void closure (item_number *items, size_t n);
+
+
+/* Frees ITEMSET, RULESET and internal data.  */
+
+void free_closure (void);
+
+extern item_number *itemset;
+extern size_t nitemset;
+
+#endif /* !CLOSURE_H_ */