rollup merge of #21053: apasel422/exact

1 files changed, 5 insertions, 0 deletions

diff --git a/src/libcore/slice.rs b/src/libcore/slice.rs
index 50cbb7a61dc..ae5dc1bffa6 100644
--- a/src/libcore/slice.rs
+++ b/src/libcore/slice.rs
@@ -1269,6 +1269,9 @@ impl<'a, T> DoubleEndedIterator for Chunks<'a, T> {
     }
 }
 
+#[stable]
+impl<'a, T> ExactSizeIterator for Chunks<'a, T> {}
+
 #[unstable = "trait is experimental"]
 impl<'a, T> RandomAccessIterator for Chunks<'a, T> {
     #[inline]
@@ -1347,6 +1350,8 @@ impl<'a, T> DoubleEndedIterator for ChunksMut<'a, T> {
     }
 }
 
+#[stable]
+impl<'a, T> ExactSizeIterator for ChunksMut<'a, T> {}
 
 //
 // Free functions