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-rw-r--r--lib/bitset/array.c46
1 files changed, 15 insertions, 31 deletions
diff --git a/lib/bitset/array.c b/lib/bitset/array.c
index 6c5f7ed34f..3f8bcca87d 100644
--- a/lib/bitset/array.c
+++ b/lib/bitset/array.c
@@ -62,38 +62,25 @@ abitset_small_list (bitset src, bitset_bindex *list,
word >>= bitno;
- /* If num is 1, we could speed things up with a binary search
- of the word of interest. */
-
- bitset_bindex count;
+ bitset_bindex count = 0;
+ /* Is there enough room to avoid checking in each iteration? */
if (num >= BITSET_WORD_BITS)
{
- for (count = 0; word; bitno++)
- {
- if (word & 1)
- list[count++] = bitno;
- word >>= 1;
- }
+ BITSET_FOR_EACH_BIT (pos, word)
+ list[count++] = bitno + pos;
+ *next = bitno + BITSET_WORD_BITS;
+ return count;
}
else
- {
- for (count = 0; word; bitno++)
- {
- if (word & 1)
- {
- list[count++] = bitno;
- if (count >= num)
- {
- bitno++;
- break;
- }
- }
- word >>= 1;
- }
- }
-
- *next = bitno;
- return count;
+ BITSET_FOR_EACH_BIT (pos, word)
+ {
+ list[count++] = bitno + pos;
+ if (count >= num)
+ {
+ *next = bitno + pos + 1;
+ return count;
+ }
+ }
}
@@ -205,9 +192,6 @@ abitset_list (bitset src, bitset_bindex *list,
if (windex >= size)
return 0;
- /* If num is 1, we could speed things up with a binary search
- of the current word. */
-
bitoff = windex * BITSET_WORD_BITS;
}
else