From 96157ef8422298e66bcbf7dc1b2b28dd6d90b745 Mon Sep 17 00:00:00 2001
From: Dan Aloni <alonid@gmail.com>
Date: Fri, 12 Jan 2018 13:18:33 +0200
Subject: [PATCH] Derive std::cmp::Reverse as Copy or Clone

If the type parameter is Copy or Clone, then `Reverse` should be too.
---
 src/libcore/cmp.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libcore/cmp.rs b/src/libcore/cmp.rs
index 266cae3c122f4..e6759d1bad940 100644
--- a/src/libcore/cmp.rs
+++ b/src/libcore/cmp.rs
@@ -343,7 +343,7 @@ impl Ordering {
 /// v.sort_by_key(|&num| (num > 3, Reverse(num)));
 /// assert_eq!(v, vec![3, 2, 1, 6, 5, 4]);
 /// ```
-#[derive(PartialEq, Eq, Debug)]
+#[derive(PartialEq, Eq, Debug, Copy, Clone)]
 #[stable(feature = "reverse_cmp_key", since = "1.19.0")]
 pub struct Reverse<T>(#[stable(feature = "reverse_cmp_key", since = "1.19.0")] pub T);