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prioq: never shuffle identical entries

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Skip shuffling identical entries in shuffle_up(), just like we already do
in shuffle_down().
This commit is contained in:
David Herrmann 2015-09-29 20:41:29 +02:00
parent 9dc5db34ad
commit 8a9d23e446
1 changed files with 1 additions and 1 deletions
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2
src/basic/prioq.c
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@ -101,7 +101,7 @@ static unsigned shuffle_up(Prioq *q, unsigned idx) {
k = (idx-1)/2;
if (q->compare_func(q->items[k].data, q->items[idx].data) < 0)
if (q->compare_func(q->items[k].data, q->items[idx].data) <= 0)
break;
swap(q, idx, k);