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(abitset_reverse_list, ebitset_reverse_list):

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Do not assume that bitset_windex is the same width as unsigned.
(abitset_unused_clear): Do not assume that bitset_word is the same
width as int.
(abitset_op1): Use -1, not ~0, as memset arg (for portability to one's
complement hosts!).
This commit is contained in:
Paul Eggert
2002-08-12 14:09:24 +00:00
parent 81fe8b23e9
commit d6eba4239f
1 changed files with 6 additions and 4 deletions
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10
lib/abitset.c
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@@ -208,8 +208,7 @@ abitset_reverse_list (src, list, num, next)
bitcnt = bitno % BITSET_WORD_BITS; bitcnt = bitno % BITSET_WORD_BITS;
bitoff = windex * BITSET_WORD_BITS; bitoff = windex * BITSET_WORD_BITS;
for (; windex != ~0U; windex--, bitoff -= BITSET_WORD_BITS, do
bitcnt = BITSET_WORD_BITS - 1)
{ {
word = srcp[windex] << (BITSET_WORD_BITS - 1 - bitcnt); word = srcp[windex] << (BITSET_WORD_BITS - 1 - bitcnt);
for (; word; bitcnt--) for (; word; bitcnt--)
@@ -225,7 +224,10 @@ abitset_reverse_list (src, list, num, next)
} }
word <<= 1; word <<= 1;
} }
bitoff -= BITSET_WORD_BITS;
bitcnt = BITSET_WORD_BITS - 1;
} }
while (windex--);
*next = n_bits - (bitoff + 1); *next = n_bits - (bitoff + 1);
return count; return count;
@@ -348,7 +350,7 @@ abitset_unused_clear (dst)
last_bit = ABITSET_N_BITS (dst) % BITSET_WORD_BITS; last_bit = ABITSET_N_BITS (dst) % BITSET_WORD_BITS;
if (last_bit) if (last_bit)
ABITSET_WORDS (dst)[dst->b.csize - 1] &= ABITSET_WORDS (dst)[dst->b.csize - 1] &=
(bitset_word) ((1 << last_bit) - 1); ((bitset_word) 1 << last_bit) - 1;
} }
@@ -370,7 +372,7 @@ abitset_op1 (dst, op)
break; break;
case BITSET_OP_ONES: case BITSET_OP_ONES:
memset (dstp, ~0, bytes); memset (dstp, -1, bytes);
abitset_unused_clear (dst); abitset_unused_clear (dst);
break; break;