Improve iter_mut example. Add that it is fused iterator

JustForFun88 · Apr 4, 2022 · 25d8a9e · 25d8a9e
1 parent 7f8aed8
commit 25d8a9e
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/map.rs b/src/map.rs
@@ -1650,6 +1650,10 @@ impl<K1, K2, V> FusedIterator for Iter<'_, K1, K2, V> {}
 /// iter.next().map(|(_, _, v)| v.push_str(" coin"));
 /// iter.next().map(|(_, _, v)| v.push_str(" coin"));
 ///
+/// // It is fused iterator
+/// assert_eq!(iter.next(), None);
+/// assert_eq!(iter.next(), None);
+///
 /// assert_eq!(map.get_key1(&1).unwrap(), &"One coin".to_owned()  );
 /// assert_eq!(map.get_key1(&2).unwrap(), &"Two coin".to_owned()  );
 /// assert_eq!(map.get_key1(&3).unwrap(), &"Three coin".to_owned());