/* Functions to support expandable bitsets.
- Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+
+ Copyright (C) 2002-2006, 2009-2011 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 2 of the License, or
+ 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,
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-*/
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
+#include <config.h>
#include "ebitset.h"
+
#include "obstack.h"
#include <stdlib.h>
#include <string.h>
((BSET)->b.cindex = (EINDEX) * EBITSET_ELT_WORDS, \
(BSET)->b.cdata = EBITSET_WORDS (EBITSET_ELTS (BSET) [EINDEX]))
-
+#undef min
+#undef max
#define min(a, b) ((a) > (b) ? (b) : (a))
#define max(a, b) ((a) > (b) ? (a) : (b))
-
static bitset_bindex
ebitset_resize (bitset src, bitset_bindex n_bits)
{
{
bitset_windex size;
- /* The bitset needs to grow. If we already have enough memory
+ /* The bitset needs to grow. If we already have enough memory
allocated, then just zero what we need. */
if (newsize > EBITSET_ASIZE (src))
{
size = newsize;
else
size = newsize + newsize / 4;
-
+
EBITSET_ELTS (src)
= realloc (EBITSET_ELTS (src), size * sizeof (ebitset_elt *));
EBITSET_ASIZE (src) = size;
}
- memset (EBITSET_ELTS (src) + oldsize, 0,
+ memset (EBITSET_ELTS (src) + oldsize, 0,
(newsize - oldsize) * sizeof (ebitset_elt *));
}
else
#define OBSTACK_CHUNK_FREE free
#endif
-#if !defined(__GNUC__) || (__GNUC__ < 2)
+#if ! defined __GNUC__ || __GNUC__ < 2
#define __alignof__(type) 0
#endif
switch (mode)
{
+ default:
+ abort ();
+
case EBITSET_FIND:
return 0;
case EBITSET_SUBST:
return &ebitset_zero_elts[0];
-
- default:
- abort ();
}
}
{
unsigned int last_bit;
bitset_bindex n_bits;
-
+
n_bits = BITSET_NBITS_ (dst);
last_bit = n_bits % EBITSET_ELT_BITS;
-
+
if (last_bit)
{
bitset_windex eindex;
ebitset_elt *elt;
elts = EBITSET_ELTS (dst);
-
+
eindex = n_bits / EBITSET_ELT_BITS;
-
+
elt = elts[eindex];
if (elt)
{
bitset_windex windex;
bitset_windex woffset;
bitset_word *srcp = EBITSET_WORDS (elt);
-
+
windex = n_bits / BITSET_WORD_BITS;
woffset = eindex * EBITSET_ELT_WORDS;
-
- srcp[windex - woffset] &= ((bitset_word) 1 << last_bit) - 1;
+
+ srcp[windex - woffset] &= ((bitset_word) 1 << last_bit) - 1;
windex++;
for (; (windex - woffset) < EBITSET_ELT_WORDS; windex++)
srcp[windex - woffset] = 0;
dstp = EBITSET_WORDS (delt);
switch (op)
{
+ default:
+ abort ();
+
case BITSET_OP_OR:
for (i = 0; i < EBITSET_ELT_WORDS; i++, dstp++)
{
}
}
break;
-
- default:
- abort ();
}
if (!ebitset_elt_zero_p (delt))