From 17b22f7d63d85cb737e2d4e72259788d74a3ac83 Mon Sep 17 00:00:00 2001
From: Simonas Kazlauskas <git@kazlauskas.me>
Date: Mon, 31 Aug 2015 15:09:43 +0300
Subject: [PATCH] Specialise count, last, nth for Cloned iterator

---
 src/libcore/iter.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/libcore/iter.rs b/src/libcore/iter.rs
index 97dcb2475a3cf..44f6e1d10ed5b 100644
--- a/src/libcore/iter.rs
+++ b/src/libcore/iter.rs
@@ -1421,6 +1421,18 @@ impl<'a, I, T: 'a> Iterator for Cloned<I>
     fn size_hint(&self) -> (usize, Option<usize>) {
         self.it.size_hint()
     }
+
+    fn count(self) -> usize {
+        self.it.count()
+    }
+
+    fn last(self) -> Option<T> {
+        self.it.last().cloned()
+    }
+
+    fn nth(&mut self, n: usize) -> Option<T> {
+        self.it.nth(n).cloned()
+    }
 }
 
 #[stable(feature = "rust1", since = "1.0.0")]