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Rollup merge of #40790 - stepancheg:btreemap-drop, r=alexcrichton

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Unnecessary iteration in BTreeMap::drop

`IntoIter::drop` already iterates.
This commit is contained in:
Corey Farwell 2017-03-24 18:13:14 -05:00 committed by GitHub
commit eb6f09ce24
1 changed files with 1 additions and 2 deletions
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src/libcollections/btree/map.rs
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@ -141,8 +141,7 @@ pub struct BTreeMap<K, V> {
unsafe impl<#[may_dangle] K, #[may_dangle] V> Drop for BTreeMap<K, V> { unsafe impl<#[may_dangle] K, #[may_dangle] V> Drop for BTreeMap<K, V> {
fn drop(&mut self) { fn drop(&mut self) {
unsafe { unsafe {
for _ in ptr::read(self).into_iter() { drop(ptr::read(self).into_iter());
}
} }
} }
} }