---

yaml
---
r: 143073
b: refs/heads/try2
c: fe134b9
h: refs/heads/master
i:
  143071: 13e20d3
v: v3

Author: blake2-ppc

[refs]

@@ -5,7 +5,7 @@ refs/heads/snap-stage3: 78a7676898d9f80ab540c6df5d4c9ce35bb50463
 refs/heads/try: 519addf6277dbafccbb4159db4b710c37eaa2ec5
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
-refs/heads/try2: 24b6901b26f0bde00706a5cbc16ffc29296ea40d
+refs/heads/try2: fe134b9509821e5e2fad5545cdd23c5325dfd583
 refs/heads/dist-snap: ba4081a5a8573875fed17545846f6f6902c8ba8d
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596
 refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503

branches/try2/src/libextra/dlist.rs

@@ -47,6 +47,7 @@ struct Node<T> {
 }
 
 /// Double-ended DList iterator
+#[deriving(Clone)]
 pub struct DListIterator<'self, T> {
     priv head: &'self Link<T>,
     priv tail: Rawlink<Node<T>>,
@@ -62,6 +63,7 @@ pub struct MutDListIterator<'self, T> {
 }
 
 /// DList consuming iterator
+#[deriving(Clone)]
 pub struct ConsumeIterator<T> {
     priv list: DList<T>
 }
@@ -93,6 +95,13 @@ impl<T> Rawlink<T> {
     }
 }
 
+impl<T> Clone for Rawlink<T> {
+    #[inline]
+    fn clone(&self) -> Rawlink<T> {
+        Rawlink{p: self.p}
+    }
+}
+
 /// Set the .prev field on `next`, then return `Some(next)`
 fn link_with_prev<T>(mut next: ~Node<T>, prev: Rawlink<Node<T>>) -> Link<T> {
     next.prev = prev;
@@ -686,6 +695,20 @@ mod tests {
         assert_eq!(it.next(), None);
     }
 
+    #[test]
+    fn test_iterator_clone() {
+        let mut n = DList::new();
+        n.push_back(2);
+        n.push_back(3);
+        n.push_back(4);
+        let mut it = n.iter();
+        it.next();
+        let mut jt = it.clone();
+        assert_eq!(it.next(), jt.next());
+        assert_eq!(it.next_back(), jt.next_back());
+        assert_eq!(it.next(), jt.next());
+    }
+
     #[test]
     fn test_iterator_double_end() {
         let mut n = DList::new();