OpenE2K/rust
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Rollup merge of #35793 - matthew-piziak:add-rhs-example, r=steveklabnik

Browse Source 
demonstrate `RHS != Self` use cases for `Add` and `Sub`
This commit is contained in:
Jonathan Turner 2016-09-02 15:28:50 -07:00 committed by GitHub
commit c330376a4d
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/libcore/ops.rs
View File

@ -282,6 +282,12 @@ macro_rules! forward_ref_binop {
/// Point { x: 3, y: 3 });
/// }
/// ```
///
/// Note that `RHS = Self` by default, but this is not mandatory. For example,
/// [std::time::SystemTime] implements `Add<Duration>`, which permits
/// operations of the form `SystemTime = SystemTime + Duration`.
///
/// [std::time::SystemTime]: ../../std/time/struct.SystemTime.html
#[lang = "add"]
#[stable(feature = "rust1", since = "1.0.0")]
pub trait Add<RHS=Self> {
@ -349,6 +355,12 @@ add_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 f32 f64 }
/// Point { x: 1, y: 0 });
/// }
/// ```
///
/// Note that `RHS = Self` by default, but this is not mandatory. For example,
/// [std::time::SystemTime] implements `Sub<Duration>`, which permits
/// operations of the form `SystemTime = SystemTime - Duration`.
///
/// [std::time::SystemTime]: ../../std/time/struct.SystemTime.html
#[lang = "sub"]
#[stable(feature = "rust1", since = "1.0.0")]
pub trait Sub<RHS=Self> {