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Revert "Add implementations of last in terms of next_back on a bunch of DoubleEndedIterators."

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This reverts commit 3e86cf36b5.
This commit is contained in:
Steven Fackler
2019-05-22 14:09:34 -07:00
parent 37ff5d388f
commit 8a22bc3b30
14 changed files with 0 additions and 159 deletions
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14
src/liballoc/vec.rs
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@@ -2395,11 +2395,6 @@ impl<T> Iterator for IntoIter<T> {
fn count(self) -> usize {
self.len()
}
#[inline]
fn last(mut self) -> Option<T> {
self.next_back()
}
}
#[stable(feature = "rust1", since = "1.0.0")]
@@ -2519,11 +2514,6 @@ impl<T> Iterator for Drain<'_, T> {
fn size_hint(&self) -> (usize, Option<usize>) {
self.iter.size_hint()
}
#[inline]
fn last(mut self) -> Option<T> {
self.next_back()
}
}
#[stable(feature = "drain", since = "1.6.0")]
@@ -2593,10 +2583,6 @@ impl<I: Iterator> Iterator for Splice<'_, I> {
fn size_hint(&self) -> (usize, Option<usize>) {
self.drain.size_hint()
}
fn last(mut self) -> Option<Self::Item> {
self.next_back()
}
}
#[stable(feature = "vec_splice", since = "1.21.0")]