Implement `Clone` for `std::vec::IntoIter`

1 files changed, 11 insertions, 1 deletions

diff --git a/src/libcollections/vec.rs b/src/libcollections/vec.rs
index 270a01014c1..49c35520833 100644
--- a/src/libcollections/vec.rs
+++ b/src/libcollections/vec.rs
@@ -59,9 +59,10 @@
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
-use alloc::raw_vec::RawVec;
 use alloc::boxed::Box;
 use alloc::heap::EMPTY;
+use alloc::raw_vec::RawVec;
+use borrow::ToOwned;
 use core::cmp::Ordering;
 use core::fmt;
 use core::hash::{self, Hash};
@@ -1633,6 +1634,15 @@ impl<T> DoubleEndedIterator for IntoIter<T> {
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T> ExactSizeIterator for IntoIter<T> {}
 
+#[stable(feature = "vec_into_iter_clone", since = "1.8.0")]
+impl<T: Clone> Clone for IntoIter<T> {
+    fn clone(&self) -> IntoIter<T> {
+        unsafe {
+            slice::from_raw_parts(self.ptr, self.len()).to_owned().into_iter()
+        }
+    }
+}
+
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T> Drop for IntoIter<T> {
     #[unsafe_destructor_blind_to_params]