* data/yacc.c (m4_int_type): New.

[bison.git] / src / closure.h

diff --git a/src/closure.h b/src/closure.h
index 887f3da86ec61f4e87d6d56d39ffd620a4315b34..43eae0f062f4807cbbbd0a3bc81806f9ea58cf76 100644 (file)
--- a/src/closure.h
+++ b/src/closure.h
@@ -1,5 +1,5 @@
 /* Subroutines for bison
 /* Subroutines for bison

-   Copyright 1984, 1989, 2000, 2001  Free Software Foundation, Inc.
+   Copyright (C) 1984, 1989, 2000, 2001, 2002  Free Software Foundation, Inc.

 
    This file is part of Bison, the GNU Compiler Compiler.
 
 
    This file is part of Bison, the GNU Compiler Compiler.
 


@@ -21,36 +21,35 @@
 #ifndef CLOSURE_H_
 # define CLOSURE_H_
 
 #ifndef CLOSURE_H_
 # define CLOSURE_H_
 

-/* Subroutines of file LR0.c. */
-

 /* 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.  */
 
 /* 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 (int n);

 
 
 
 

-/* Given a 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.
+/* Given the kernel (aka core) of a state (a 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
+   RULESET contains a bit for each rule.  CLOSURE sets the bits for

    all rules which could potentially describe the next input to be
    read.
 
    all rules which could potentially describe the next input to be
    read.
 

-   itemset is a vector of item numbers; itemsetend 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.  */
+   ITEMSET is a 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_t *items, int n);

 
 
 
 

-/* Frees itemset, ruleset and internal data.  */
+/* Frees ITEMSET, RULESET and internal data.  */

 
 

-void free_closure PARAMS ((void));
+void free_closure (void);

 
 

-extern short *itemset;
-extern int itemsetsize;
+extern item_number_t *itemset;
+extern int nritemset;

 
 #endif /* !CLOSURE_H_ */
 
 #endif /* !CLOSURE_H_ */