From 3024efff59368d6271dab1a8ac78434175647e9b Mon Sep 17 00:00:00 2001
From: bstrie <865233+bstrie@users.noreply.github.com>
Date: Sat, 5 Jun 2021 17:20:51 -0400
Subject: [PATCH] Update Copy/Clone documentation WRT arrays

---
 compiler/rustc_error_codes/src/error_codes/E0206.md | 9 +++------
 library/core/src/clone.rs                           | 1 -
 library/core/src/marker.rs                          | 1 -
 3 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/compiler/rustc_error_codes/src/error_codes/E0206.md b/compiler/rustc_error_codes/src/error_codes/E0206.md
index da53b671ad0..4405a2149ce 100644
--- a/compiler/rustc_error_codes/src/error_codes/E0206.md
+++ b/compiler/rustc_error_codes/src/error_codes/E0206.md
@@ -4,15 +4,12 @@ enum.
 Erroneous code example:
 
 ```compile_fail,E0206
-type Foo = [u8; 256];
-impl Copy for Foo { } // error!
-
 #[derive(Copy, Clone)]
 struct Bar;
 
 impl Copy for &'static mut Bar { } // error!
 ```
 
-You can only implement `Copy` for a struct or an enum. Both of the previous
-examples will fail, because neither `[u8; 256]` nor `&'static mut Bar`
-(mutable reference to `Bar`) is a struct or enum.
+You can only implement `Copy` for a struct or an enum.
+The previous example will fail because `&'static mut Bar`
+is not a struct or enum.
diff --git a/library/core/src/clone.rs b/library/core/src/clone.rs
index 281ff3badfb..6f9579043c3 100644
--- a/library/core/src/clone.rs
+++ b/library/core/src/clone.rs
@@ -93,7 +93,6 @@
 ///
 /// * Function item types (i.e., the distinct types defined for each function)
 /// * Function pointer types (e.g., `fn() -> i32`)
-/// * Array types, for all sizes, if the item type also implements `Clone` (e.g., `[i32; 123456]`)
 /// * Tuple types, if each component also implements `Clone` (e.g., `()`, `(i32, bool)`)
 /// * Closure types, if they capture no value from the environment
 ///   or if all such captured values implement `Clone` themselves.
diff --git a/library/core/src/marker.rs b/library/core/src/marker.rs
index 37446bafacb..71eea43aa54 100644
--- a/library/core/src/marker.rs
+++ b/library/core/src/marker.rs
@@ -359,7 +359,6 @@ pub trait StructuralEq {
 ///
 /// * Function item types (i.e., the distinct types defined for each function)
 /// * Function pointer types (e.g., `fn() -> i32`)
-/// * Array types, for all sizes, if the item type also implements `Copy` (e.g., `[i32; 123456]`)
 /// * Tuple types, if each component also implements `Copy` (e.g., `()`, `(i32, bool)`)
 /// * Closure types, if they capture no value from the environment
 ///   or if all such captured values implement `Copy` themselves.