diff options
Diffstat (limited to 'src/libcore')
| -rw-r--r-- | src/libcore/marker.rs | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/src/libcore/marker.rs b/src/libcore/marker.rs index 150a091c4bd..c18d230be31 100644 --- a/src/libcore/marker.rs +++ b/src/libcore/marker.rs @@ -136,26 +136,6 @@ pub trait Unsize<T: ?Sized> { /// the trait `Copy` may not be implemented for this type; field `points` does not implement `Copy` /// ``` /// -/// ## How can I implement `Copy`? -/// -/// There are two ways to implement `Copy` on your type: -/// -/// ``` -/// #[derive(Copy, Clone)] -/// struct MyStruct; -/// ``` -/// -/// and -/// -/// ``` -/// struct MyStruct; -/// impl Copy for MyStruct {} -/// impl Clone for MyStruct { fn clone(&self) -> MyStruct { *self } } -/// ``` -/// -/// There is a small difference between the two: the `derive` strategy will also place a `Copy` -/// bound on type parameters, which isn't always desired. -/// /// ## When can my type _not_ be `Copy`? /// /// Some types can't be copied safely. For example, copying `&mut T` would create an aliased @@ -175,6 +155,26 @@ pub trait Unsize<T: ?Sized> { /// /// This trait can be used with `#[derive]` if all of its components implement `Copy` and the type /// implements `Clone`. The implementation will copy the bytes of each field using `memcpy`. +/// +/// ## How can I implement `Copy`? +/// +/// There are two ways to implement `Copy` on your type: +/// +/// ``` +/// #[derive(Copy, Clone)] +/// struct MyStruct; +/// ``` +/// +/// and +/// +/// ``` +/// struct MyStruct; +/// impl Copy for MyStruct {} +/// impl Clone for MyStruct { fn clone(&self) -> MyStruct { *self } } +/// ``` +/// +/// There is a small difference between the two: the `derive` strategy will also place a `Copy` +/// bound on type parameters, which isn't always desired. #[stable(feature = "rust1", since = "1.0.0")] #[lang = "copy"] pub trait Copy : Clone { |