Rollup merge of #71944 - ldm0:arrordhint, r=sfackler

Dylan-DPC · web-flow · commit fbb4ccbee61d · 2020-05-06T16:59:04.000+02:00
Add comment for `Ord` implementation for array

Corresponding to `Ord` implementation for slice. It hints new comer the rule of comparing two arrays.
diff --git a/src/libcore/array/mod.rs b/src/libcore/array/mod.rs
@@ -375,6 +375,7 @@ where
     }
 }
 
+/// Implements comparison of arrays lexicographically.
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T: Ord, const N: usize> Ord for [T; N]
 where

Original file line number	Diff line number	Diff line change
`@@ -375,6 +375,7 @@ where`
`375`	`375`	`}`
`376`	`376`	`}`
`377`	`377`
	`378`	`+/// Implements comparison of arrays lexicographically.`
`378`	`379`	`#[stable(feature = "rust1", since = "1.0.0")]`
`379`	`380`	`impl<T: Ord, const N: usize> Ord for [T; N]`
`380`	`381`	`where`