errors: support indented context info in m4 macros

[bison.git] / src / closure.h

diff --git a/src/closure.h b/src/closure.h
index 32082d15a06468edcf34e4ccc1a5195510e86b46..0f96a8b2f60db174f93564bb6204177fb016cd89 100644 (file)
--- a/src/closure.h
+++ b/src/closure.h
@@ -1,34 +1,36 @@
 /* Subroutines for bison
-   Copyright (C) 1984, 1989, 2000, 2001, 2002  Free Software Foundation, Inc.
+
+   Copyright (C) 1984, 1989, 2000-2002, 2007, 2009-2012 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.
+   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.
 
-   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.
+   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 Bison; see the file COPYING.  If not, write to the Free
-   Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-   02111-1307, USA.  */
+   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 PARAMS ((int n));
+void new_closure (unsigned int n);
 
 
-/* Given the kernel (aka core) of a state (a vector of item numbers
+/* 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.
@@ -37,19 +39,19 @@ void new_closure PARAMS ((int n));
    all rules which could potentially describe the next input to be
    read.
 
-   ITEMSET is a vector of item numbers; NITEMSET is its size
+   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 PARAMS ((short *items, int n));
+void closure (item_number *items, size_t n);
 
 
 /* Frees ITEMSET, RULESET and internal data.  */
 
-void free_closure PARAMS ((void));
+void free_closure (void);
 
-extern short *itemset;
-extern int nritemset;
+extern item_number *itemset;
+extern size_t nitemset;
 
 #endif /* !CLOSURE_H_ */