From 7347b2d31658de1659c4d757c3cc13fa0ad89377 Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Sat, 7 Jun 2003 23:28:20 +0000 Subject: [PATCH] Import of 2003-06-08 libbitset --- lib/bitset.h | 114 ++++++++++++++++++++++++++++++++--------------------------- 1 file changed, 62 insertions(+), 52 deletions(-) diff --git a/lib/bitset.h b/lib/bitset.h index 3e52940..efd4478 100644 --- a/lib/bitset.h +++ b/lib/bitset.h @@ -1,19 +1,20 @@ /* Generic bitsets. - Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 2002, 2003 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 3 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 2 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, see . */ +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. */ #ifndef _BITSET_H #define _BITSET_H @@ -22,12 +23,18 @@ Only use the functions and macros defined in this file. */ #include "bbitset.h" -#include "obstack.h" -#include -#if USE_UNLOCKED_IO -# include "unlocked-io.h" +/* obstack.h tries to be portable to K&R compilers, but its + __INT_TO_PTR macro generates diagnostics on compilers like Tru64 cc + that define __STDC__ to 0 when not in strict ANSI mode. The bitset + code assumes C89 or later, so it can avoid these glitches by + defining __INT_TO_PTR appropriately for C89 or later. */ +#ifndef __INT_TO_PTR +# define __INT_TO_PTR(P) ((void *) ((P) + (char *) 0)) #endif +#include "obstack.h" + +#include /* Attributes used to select a bitset implementation. */ enum bitset_attr {BITSET_FIXED = 1, /* Bitset size fixed. */ @@ -96,37 +103,38 @@ typedef struct /* Return bytes required for bitset of desired type and size. */ -extern size_t bitset_bytes (enum bitset_type, bitset_bindex); +extern size_t bitset_bytes PARAMS ((enum bitset_type, bitset_bindex)); /* Initialise a bitset with desired type and size. */ -extern bitset bitset_init (bitset, bitset_bindex, enum bitset_type); +extern bitset bitset_init PARAMS ((bitset, bitset_bindex, enum bitset_type)); /* Select an implementation type based on the desired bitset size and attributes. */ -extern enum bitset_type bitset_type_choose (bitset_bindex, bitset_attrs); +extern enum bitset_type bitset_type_choose PARAMS ((bitset_bindex, + bitset_attrs)); /* Create a bitset of desired type and size. The bitset is zeroed. */ -extern bitset bitset_alloc (bitset_bindex, enum bitset_type); +extern bitset bitset_alloc PARAMS ((bitset_bindex, enum bitset_type)); /* Free bitset. */ -extern void bitset_free (bitset); +extern void bitset_free PARAMS ((bitset)); /* Create a bitset of desired type and size using an obstack. The bitset is zeroed. */ -extern bitset bitset_obstack_alloc (struct obstack *bobstack, - bitset_bindex, enum bitset_type); +extern bitset bitset_obstack_alloc PARAMS ((struct obstack *bobstack, + bitset_bindex, enum bitset_type)); /* Free bitset allocated on obstack. */ -extern void bitset_obstack_free (bitset); +extern void bitset_obstack_free PARAMS ((bitset)); /* Create a bitset of desired size and attributes. The bitset is zeroed. */ -extern bitset bitset_create (bitset_bindex, bitset_attrs); +extern bitset bitset_create PARAMS ((bitset_bindex, bitset_attrs)); /* Return bitset type. */ -extern enum bitset_type bitset_type_get (bitset); +extern enum bitset_type bitset_type_get PARAMS ((bitset)); /* Return bitset type name. */ -extern const char *bitset_type_name_get (bitset); +extern const char *bitset_type_name_get PARAMS ((bitset)); /* Set bit BITNO in bitset BSET. */ @@ -178,7 +186,7 @@ bitset_test (bitset bset, bitset_bindex bitno) #define bitset_size(SRC) BITSET_SIZE_ (SRC) /* Change size of bitset. */ -extern void bitset_resize (bitset, bitset_bindex); +extern void bitset_resize PARAMS ((bitset, bitset_bindex)); /* Return number of bits set in bitset SRC. */ #define bitset_count(SRC) BITSET_COUNT_ (SRC) @@ -278,42 +286,43 @@ extern void bitset_resize (bitset, bitset_bindex); BITSET_LIST_REVERSE_ (BSET, LIST, NUM, NEXT) /* Return true if both bitsets are of the same type and size. */ -extern bool bitset_compatible_p (bitset bset1, bitset bset2); +extern bool +bitset_compatible_p (bitset bset1, bitset bset2); /* Find next set bit from the given bit index. */ -extern bitset_bindex bitset_next (bitset, bitset_bindex); +extern bitset_bindex bitset_next PARAMS ((bitset, bitset_bindex)); /* Find previous set bit from the given bit index. */ -extern bitset_bindex bitset_prev (bitset, bitset_bindex); +extern bitset_bindex bitset_prev PARAMS ((bitset, bitset_bindex)); /* Find first set bit. */ -extern bitset_bindex bitset_first (bitset); +extern bitset_bindex bitset_first PARAMS ((bitset)); /* Find last set bit. */ -extern bitset_bindex bitset_last (bitset); +extern bitset_bindex bitset_last PARAMS ((bitset)); /* Return nonzero if this is the only set bit. */ -extern bool bitset_only_set_p (bitset, bitset_bindex); +extern bool bitset_only_set_p PARAMS ((bitset, bitset_bindex)); /* Dump bitset. */ -extern void bitset_dump (FILE *, bitset); +extern void bitset_dump PARAMS ((FILE *, bitset)); /* Loop over all elements of BSET, starting with MIN, setting INDEX to the index of each set bit. For example, the following will print the bits set in a bitset: - bitset_bindex i; + bitset_bindex index; bitset_iterator iter; - BITSET_FOR_EACH (iter, src, i, 0) + BITSET_FOR_EACH (iter, src, index, 0) { - printf ("%lu ", (unsigned long int) i); + printf ("%ld ", index); }; */ #define BITSET_FOR_EACH(ITER, BSET, INDEX, MIN) \ for (ITER.next = (MIN), ITER.num = BITSET_LIST_SIZE; \ - (ITER.num == BITSET_LIST_SIZE) \ - && (ITER.num = bitset_list (BSET, ITER.list, \ + (ITER.num == BITSET_LIST_SIZE) \ + && (ITER.num = bitset_list (BSET, ITER.list, \ BITSET_LIST_SIZE, &ITER.next));) \ for (ITER.i = 0; \ ITER.i < ITER.num && ((INDEX) = ITER.list[ITER.i], 1); \ @@ -321,20 +330,20 @@ extern void bitset_dump (FILE *, bitset); /* Loop over all elements of BSET, in reverse order starting with - MIN, setting INDEX to the index of each set bit. For example, the + MIN, setting INDEX to the index of each set bit. For example, the following will print the bits set in a bitset in reverse order: - bitset_bindex i; + bitset_bindex index; bitset_iterator iter; - BITSET_FOR_EACH_REVERSE (iter, src, i, 0) + BITSET_FOR_EACH_REVERSE (iter, src, index, 0) { - printf ("%lu ", (unsigned long int) i); + printf ("%ld ", index); }; */ #define BITSET_FOR_EACH_REVERSE(ITER, BSET, INDEX, MIN) \ for (ITER.next = (MIN), ITER.num = BITSET_LIST_SIZE; \ - (ITER.num == BITSET_LIST_SIZE) \ + (ITER.num == BITSET_LIST_SIZE) \ && (ITER.num = bitset_list_reverse (BSET, ITER.list, \ BITSET_LIST_SIZE, &ITER.next));) \ for (ITER.i = 0; \ @@ -365,27 +374,28 @@ extern void bitset_dump (FILE *, bitset); /* Release any memory tied up with bitsets. */ -extern void bitset_release_memory (void); +extern void bitset_release_memory PARAMS ((void)); /* Enable bitset stats gathering. */ -extern void bitset_stats_enable (void); +extern void bitset_stats_enable PARAMS ((void)); /* Disable bitset stats gathering. */ -extern void bitset_stats_disable (void); +extern void bitset_stats_disable PARAMS ((void)); /* Read bitset stats file of accummulated stats. */ -void bitset_stats_read (const char *file_name); +void bitset_stats_read PARAMS ((const char *filename)); /* Write bitset stats file of accummulated stats. */ -void bitset_stats_write (const char *file_name); +void bitset_stats_write PARAMS ((const char *filename)); /* Dump bitset stats. */ -extern void bitset_stats_dump (FILE *); +extern void bitset_stats_dump PARAMS ((FILE *)); /* Function to debug bitset from debugger. */ -extern void debug_bitset (bitset); +extern void debug_bitset PARAMS ((bitset)); /* Function to debug bitset stats from debugger. */ -extern void debug_bitset_stats (void); +extern void debug_bitset_stats PARAMS ((void)); #endif /* _BITSET_H */ + -- 2.7.4