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Merge pull request #5194 from Feoramund/fix-5067

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Fix off-by-one error in `priority_queue.remove`
This commit is contained in:
Jeroen van Rijn
2025-05-21 16:21:14 +02:00
committed by GitHub
parent 96bbd944dc 1662ab10af
commit a2c0720fb0
1 changed files with 4 additions and 6 deletions
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10
core/container/priority_queue/priority_queue.odin
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@@ -133,12 +133,10 @@ pop_safe :: proc(pq: ^$Q/Priority_Queue($T), loc := #caller_location) -> (value:
remove :: proc(pq: ^$Q/Priority_Queue($T), i: int) -> (value: T, ok: bool) {
n := builtin.len(pq.queue)
if 0 <= i && i < n {
if n != i {
pq.swap(pq.queue[:], i, n)
_shift_down(pq, i, n)
_shift_up(pq, i)
}
value, ok = builtin.pop_safe(&pq.queue)
pq.swap(pq.queue[:], i, n-1)
_shift_down(pq, i, n-1)
_shift_up(pq, i)
value, ok = builtin.pop(&pq.queue), true
}
return
}