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Test and fix removal at past-the-end index

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This commit is contained in:
Andreas Molzer
2020-01-18 13:24:58 +01:00
parent 26ff5dd822
commit fd28ecb105
2 changed files with 11 additions and 5 deletions
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src/arrayvec.rs
+3 -5
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@@ -384,12 +384,10 @@ impl<A: Array> ArrayVec<A> {
#[inline]
pub fn remove(&mut self, index: usize) -> A::Item {
let targets: &mut [A::Item] = &mut self.deref_mut()[index..];
let mut spare = A::Item::default();
for target in targets.iter_mut().rev() {
spare = replace(target, spare);
}
let item = replace(&mut targets[0], A::Item::default());
targets.rotate_left(1);
self.len -= 1;
spare
item
}
// NIGHTLY: remove_item, https://github.com/rust-lang/rust/issues/40062