Use copied method instead of cloned in Copied::next_back()

LunaBorowska · LunaBorowska · commit 3ee0747b5a88 · 2018-12-05T16:37:55.000+01:00
diff --git a/src/libcore/iter/mod.rs b/src/libcore/iter/mod.rs
@@ -547,7 +547,7 @@ impl<'a, I, T: 'a> DoubleEndedIterator for Copied<I>
     where I: DoubleEndedIterator<Item=&'a T>, T: Copy
 {
     fn next_back(&mut self) -> Option<T> {
-        self.it.next_back().cloned()
+        self.it.next_back().copied()
     }
 
     fn try_rfold<B, F, R>(&mut self, init: B, mut f: F) -> R where

Original file line number	Diff line number	Diff line change
`@@ -547,7 +547,7 @@ impl<'a, I, T: 'a> DoubleEndedIterator for Copied<I>`
`547`	`547`	`where I: DoubleEndedIterator<Item=&'a T>, T: Copy`
`548`	`548`	`{`
`549`	`549`	`fn next_back(&mut self) -> Option<T> {`
`550`		`- self.it.next_back().cloned()`
	`550`	`+ self.it.next_back().copied()`
`551`	`551`	`}`
`552`	`552`
`553`	`553`	`fn try_rfold<B, F, R>(&mut self, init: B, mut f: F) -> R where`