From b36ed7d2edf68453c0344eb3cd55281e48c96ecb Mon Sep 17 00:00:00 2001
From: Johannes Oertel <johannes.oertel@uni-due.de>
Date: Wed, 3 Jun 2015 12:38:42 +0200
Subject: Implement RFC 839

Closes #25976.
---
 src/libcollections/enum_set.rs | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/libcollections/enum_set.rs')

diff --git a/src/libcollections/enum_set.rs b/src/libcollections/enum_set.rs
index e6cdb88d3e1..ad90f9f1caa 100644
--- a/src/libcollections/enum_set.rs
+++ b/src/libcollections/enum_set.rs
@@ -288,3 +288,10 @@ impl<E:CLike> Extend<E> for EnumSet<E> {
         }
     }
 }
+
+#[stable(feature = "extend_ref", since = "1.2.0")]
+impl<'a, E: 'a + CLike + Copy> Extend<&'a E> for EnumSet<E> {
+    fn extend<I: IntoIterator<Item=&'a E>>(&mut self, iter: I) {
+        self.extend(iter.into_iter().cloned());
+    }
+}
-- 
cgit 1.4.1-3-g733a5