1 files changed, 12 insertions, 0 deletions
diff --git a/src/libstd/default.rs b/src/libstd/default.rs
index fbc60ffd01b..120cf3fa801 100644
--- a/src/libstd/default.rs
+++ b/src/libstd/default.rs
@@ -15,3 +15,15 @@ pub trait Default {
     /// Return the "default value" for a type.
     fn default() -> Self;
 }
+
+impl<T: Default + 'static> Default for @mut T {
+    fn default() -> @mut T { @mut Default::default() }
+}
+
+impl<T: Default + 'static> Default for @T {
+    fn default() -> @T { @Default::default() }
+}
+
+impl<T: Default> Default for ~T {
+    fn default() -> ~T { ~Default::default() }
+}