Don't use an explicit temporary for cloning an array

2015-12-01 23:33:50 +00:00 · 2015-12-01 23:33:50 +00:00 · 6dff9d03d9
commit 6dff9d03d9
parent 7867de02e3
1 changed files with 1 additions and 2 deletions
--- a/src/libcore/array.rs
+++ b/src/libcore/array.rs
@ -209,8 +209,7 @@ macro_rules! array_impl_clone {
        #[stable(feature = "rust1", since = "1.0.0")]
        impl<T: Clone> Clone for [T; $n] {
            fn clone(&self) -> [T; $n] {
-                let temp = [&self[$i], $(&self[$idx]),*];
-                [temp[$i].clone(), $(temp[$idx].clone()),*]
+                [self[$i-$i].clone(), $(self[$i-$idx].clone()),*]
            }
        }
        array_impl_clone!{$i, $($idx,)*}