X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/b2872512f1fdfab1f8869abd3bad6373891c6cda..b25d88f6d2e2f4b59927aacecdc0a9e44a34b5d9:/src/closure.h?ds=sidebyside diff --git a/src/closure.h b/src/closure.h index fdf4cc5e..43eae0f0 100644 --- a/src/closure.h +++ b/src/closure.h @@ -1,5 +1,5 @@ /* 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. @@ -21,37 +21,35 @@ #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. */ -void new_closure PARAMS ((int n)); +void new_closure (int n); /* 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 + 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. 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 + (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 nitemset; +extern item_number_t *itemset; +extern int nritemset; #endif /* !CLOSURE_H_ */