repr(transparent)

RalfJung · RalfJung · commit 5ee5a7eb5568 · 2018-08-09T11:56:01.000+02:00
diff --git a/src/libcore/mem.rs b/src/libcore/mem.rs
@@ -956,6 +956,7 @@ pub fn discriminant<T>(v: &T) -> Discriminant<T> {
 #[stable(feature = "manually_drop", since = "1.20.0")]
 #[lang = "manually_drop"]
 #[derive(Copy, Clone, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
+#[repr(transparent)]
 pub struct ManuallyDrop<T: ?Sized> {
     value: T,
 }

Original file line number	Diff line number	Diff line change
`@@ -956,6 +956,7 @@ pub fn discriminant<T>(v: &T) -> Discriminant<T> {`
`956`	`956`	`#[stable(feature = "manually_drop", since = "1.20.0")]`
`957`	`957`	`#[lang = "manually_drop"]`
`958`	`958`	`#[derive(Copy, Clone, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]`
	`959`	`+#[repr(transparent)]`
`959`	`960`	`pub struct ManuallyDrop<T: ?Sized> {`
`960`	`961`	`value: T,`
`961`	`962`	`}`