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impl TrustedLen for vec::Drain #66759

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3 changes: 3 additions & 0 deletions src/liballoc/vec.rs
Original file line number Diff line number Diff line change
Expand Up @@ -2701,6 +2701,9 @@ impl<T> ExactSizeIterator for Drain<'_, T> {
}
}

#[unstable(feature = "trusted_len", issue = "37572")]
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unsafe impl<T> TrustedLen for Drain<'_, T> {}

#[stable(feature = "fused", since = "1.26.0")]
impl<T> FusedIterator for Drain<'_, T> {}

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