/* Subroutines for bison
- Copyright 1984, 1989, 2000 Free Software Foundation, Inc.
+ Copyright 1984, 1989, 2000, 2001 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
void new_closure PARAMS ((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
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
+ 9actually, 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 free_closure PARAMS ((void));
extern short *itemset;
-extern short *itemsetend;
+extern int nitemset;
#endif /* !CLOSURE_H_ */