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[bison.git] / src / closure.h

diff --git a/src/closure.h b/src/closure.h
index a2582e89467cccfcf21b2ff49befbcb9710e52fe..045daa910e44cac19816adc98d36004a374507a1 100644 (file)
--- a/src/closure.h
+++ b/src/closure.h
@@ -1,24 +1,22 @@
 /* Subroutines for bison
 
-   Copyright (C) 1984, 1989, 2000, 2001, 2002 Free Software
+   Copyright (C) 1984, 1989, 2000, 2001, 2002, 2007 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., 51 Franklin Street, Fifth Floor, Boston, MA
-   02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef CLOSURE_H_
 # define CLOSURE_H_
@@ -32,7 +30,7 @@
 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.
@@ -41,7 +39,7 @@ void new_closure (unsigned 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.  */
@@ -54,6 +52,6 @@ void closure (item_number *items, size_t n);
 void free_closure (void);
 
 extern item_number *itemset;
-extern size_t nritemset;
+extern size_t nitemset;
 
 #endif /* !CLOSURE_H_ */