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Import of 2003-06-08 libbitset <http://mail.gnu.org/archive/html/bison-patches/2003-06/msg00005.html>

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This commit is contained in:
Paul Eggert
2003-06-02 10:15:50 +00:00
parent 671dc16a4a
commit f7f37a7a0b
1 changed files with 22 additions and 20 deletions
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42
lib/bitset.c
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@@ -1,10 +1,10 @@
/* General bitsets.
Copyright (C) 2002, 2003, 2004, 2005, 2006 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
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
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,
@@ -13,14 +13,16 @@
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 <http://www.gnu.org/licenses/>. */
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include <config.h>
#include "bitset.h"
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include "bitset.h"
#include "abitset.h"
#include "lbitset.h"
#include "ebitset.h"
@@ -43,9 +45,6 @@ bitset_bytes (enum bitset_type type, bitset_bindex n_bits)
switch (type)
{
default:
abort ();
case BITSET_ARRAY:
bytes = abitset_bytes (n_bits);
break;
@@ -61,6 +60,9 @@ bitset_bytes (enum bitset_type type, bitset_bindex n_bits)
case BITSET_VARRAY:
bytes = vbitset_bytes (n_bits);
break;
default:
abort ();
}
return bytes;
@@ -76,9 +78,6 @@ bitset_init (bitset bset, bitset_bindex n_bits, enum bitset_type type)
switch (type)
{
default:
abort ();
case BITSET_ARRAY:
return abitset_init (bset, n_bits);
@@ -90,6 +89,9 @@ bitset_init (bitset bset, bitset_bindex n_bits, enum bitset_type type)
case BITSET_VARRAY:
return vbitset_init (bset, n_bits);
default:
abort ();
}
}
@@ -109,7 +111,7 @@ bitset_type_choose (bitset_bindex n_bits ATTRIBUTE_UNUSED, unsigned int attr)
/* Choose the type of bitset. Note that sometimes we will be asked
for a zero length fixed size bitset. */
/* If no attributes selected, choose a good compromise. */
if (!attr)
return BITSET_VARRAY;
@@ -136,7 +138,7 @@ bitset_alloc (bitset_bindex n_bits, enum bitset_type type)
bytes = bitset_bytes (type, n_bits);
bset = xcalloc (1, bytes);
bset = (bitset) xcalloc (1, bytes);
/* The cache is disabled until some elements are allocated. If we
have variable length arrays, then we may need to allocate a dummy
@@ -294,7 +296,7 @@ bitset_print (FILE *file, bitset bset, bool verbose)
if (verbose)
fprintf (file, "n_bits = %lu, set = {",
(unsigned long int) bitset_size (bset));
(unsigned long) bitset_size (bset));
pos = 30;
BITSET_FOR_EACH (iter, bset, i, 0)
@@ -305,7 +307,7 @@ bitset_print (FILE *file, bitset bset, bool verbose)
pos = 0;
}
fprintf (file, "%lu ", (unsigned long int) i);
fprintf (file, "%d ", i);
pos += 1 + (i >= 10) + (i >= 100);
};
@@ -419,9 +421,6 @@ bitset_op4_cmp (bitset dst, bitset src1, bitset src2, bitset src3,
switch (op)
{
default:
abort ();
case BITSET_OP_OR_AND:
bitset_or (tmp, src1, src2);
changed = bitset_and_cmp (dst, src3, tmp);
@@ -436,6 +435,9 @@ bitset_op4_cmp (bitset dst, bitset src1, bitset src2, bitset src3,
bitset_andn (tmp, src1, src2);
changed = bitset_or_cmp (dst, src3, tmp);
break;
default:
abort ();
}
bitset_free (tmp);