diff options
Diffstat (limited to 'src/libcore')
| -rw-r--r-- | src/libcore/iter/traits.rs | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/libcore/iter/traits.rs b/src/libcore/iter/traits.rs index 9b5c2128f1e..43360b91fda 100644 --- a/src/libcore/iter/traits.rs +++ b/src/libcore/iter/traits.rs @@ -386,10 +386,11 @@ pub trait Extend<A> { /// ``` #[stable(feature = "rust1", since = "1.0.0")] pub trait DoubleEndedIterator: Iterator { - /// An iterator able to yield elements from both ends. + /// Removes and returns an element from the end of the iterator. /// - /// As this is the only method for this trait, the [trait-level] docs - /// contain more details. + /// Returns `None` when there are no more elements. + /// + /// The [trait-level] docs contain more details. /// /// [trait-level]: trait.DoubleEndedIterator.html /// |