Trait core::ops::SubExperimental

pub trait Sub<RHS, Result> {
    fn sub(self, rhs: RHS) -> Result;
}

The Sub trait is used to specify the functionality of -.

Example

A trivial implementation of Sub. When Foo - Foo happens, it ends up calling sub, and therefore, main prints Subtracting!.

#[deriving(Copy)] struct Foo; impl Sub<Foo, Foo> for Foo { fn sub(self, _rhs: Foo) -> Foo { println!("Subtracting!"); self } } fn main() { Foo - Foo; }

#[deriving(Copy)]
struct Foo;

impl Sub<Foo, Foo> for Foo {
    fn sub(self, _rhs: Foo) -> Foo {
        println!("Subtracting!");
        self
    }
}

fn main() {
    Foo - Foo;
}

Required Methods

fn sub(self, rhs: RHS) -> Result

The method for the - operator

Implementors

• impl Sub<uint, uint> for uint
• impl Sub<u8, u8> for u8
• impl Sub<u16, u16> for u16
• impl Sub<u32, u32> for u32
• impl Sub<u64, u64> for u64
• impl Sub<int, int> for int
• impl Sub<i8, i8> for i8
• impl Sub<i16, i16> for i16
• impl Sub<i32, i32> for i32
• impl Sub<i64, i64> for i64
• impl Sub<f32, f32> for f32
• impl Sub<f64, f64> for f64