implement ExactSizeIterator for linked_list::IntoIter

2015-03-23 08:51:13 -04:00
parent 64532f7f00
commit 7934d524b5
1 changed files with 2 additions and 0 deletions
--- a/src/libcollections/linked_list.rs
+++ b/src/libcollections/linked_list.rs
@@ -832,6 +832,8 @@ impl<A> DoubleEndedIterator for IntoIter<A> {
    fn next_back(&mut self) -> Option<A> { self.list.pop_back() }
 }

+impl<A> ExactSizeIterator for IntoIter<A> {}
+
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<A> FromIterator<A> for LinkedList<A> {
    fn from_iter<T: IntoIterator<Item=A>>(iter: T) -> LinkedList<A> {