Trait std::ops::NegExperimental

pub trait Neg<Result> {
    fn neg(self) -> Result;
}

The Neg trait is used to specify the functionality of unary -.

Example

A trivial implementation of Neg. When -Foo happens, it ends up calling neg, and therefore, main prints Negating!.

struct Foo; impl Copy for Foo {} impl Neg<Foo> for Foo { fn neg(self) -> Foo { println!("Negating!"); self } } fn main() { -Foo; }

struct Foo;

impl Copy for Foo {}

impl Neg<Foo> for Foo {
    fn neg(self) -> Foo {
        println!("Negating!");
        self
    }
}

fn main() {
    -Foo;
}

Required Methods

fn neg(self) -> Result

The method for the unary - operator

Implementors

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