X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/7086e7071e8bfa2012e9134530a158c88a832ba6..041308d0c03783c51ef362f888c957cd2a0e129a:/lib/lbitset.h diff --git a/lib/lbitset.h b/lib/lbitset.h index 9af651f1..79804da0 100644 --- a/lib/lbitset.h +++ b/lib/lbitset.h @@ -1,62 +1,31 @@ /* Functions to support lbitsets. - Copyright (C) 2002 Free Software Foundation, Inc. + + Copyright (C) 2002, 2004, 2009-2012 Free Software Foundation, Inc. + Contributed by Michael Hayes (m.hayes@elec.canterbury.ac.nz). -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 2 of the License, 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. -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. + 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 this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ #ifndef _LBITSET_H #define _LBITSET_H -#include "bitset-int.h" - -/* Number of words to use for each element. The larger the value the - greater the size of the cache and the shorter the time to find a given bit - but the more memory wasted for sparse bitsets and the longer the time - to search for set bits. */ -#ifndef LBITSET_ELT_WORDS -#define LBITSET_ELT_WORDS 2 -#endif - -typedef bitset_word lbitset_word; -#define LBITSET_WORD_BITS BITSET_WORD_BITS - -/* Number of bits stored in each element. */ -#define LBITSET_ELT_BITS \ - ((unsigned) (LBITSET_ELT_WORDS * LBITSET_WORD_BITS)) - -/* Lbitset element. We use an array of bits for each element. - These are linked together in a doubly-linked list. */ -typedef struct lbitset_elt_struct -{ - struct lbitset_elt_struct *next; /* Next element. */ - struct lbitset_elt_struct *prev; /* Previous element. */ - bitset_windex index; /* bitno / BITSET_WORD_BITS. */ - bitset_word words[LBITSET_ELT_WORDS]; /* Bits that are set. */ -} lbitset_elt; - - -/* Head of lbitset linked list. */ -typedef struct lbitset_struct -{ - lbitset_elt *head; /* First element in linked list. */ - lbitset_elt *tail; /* Last element in linked list. */ -} *lbitset; +#include "bitset.h" +extern size_t lbitset_bytes (bitset_bindex); -extern int lbitset_bytes PARAMS ((bitset_bindex)); +extern bitset lbitset_init (bitset, bitset_bindex); -extern void lbitset_release_memory PARAMS ((void)); +extern void lbitset_release_memory (void); #endif