Trait std::ops::SubAssign
[−]
[src]
pub trait SubAssign<Rhs = Self> {
fn sub_assign(&mut self, Rhs);
}The SubAssign trait is used to specify the functionality of -=.
Examples
A trivial implementation of SubAssign. When Foo -= Foo happens, it ends up
calling sub_assign, and therefore, main prints Subtracting!.
#![feature(augmented_assignments)] #![feature(op_assign_traits)] use std::ops::SubAssign; #[derive(Copy, Clone)] struct Foo; impl SubAssign for Foo { fn sub_assign(&mut self, _rhs: Foo) { println!("Subtracting!"); } } fn main() { let mut foo = Foo; foo -= Foo; }
Required Methods
fn sub_assign(&mut self, Rhs)
The method for the -= operator
Implementors
impl SubAssign<usize> for usizeimpl SubAssign<u8> for u8impl SubAssign<u16> for u16impl SubAssign<u32> for u32impl SubAssign<u64> for u64impl SubAssign<isize> for isizeimpl SubAssign<i8> for i8impl SubAssign<i16> for i16impl SubAssign<i32> for i32impl SubAssign<i64> for i64impl SubAssign<f32> for f32impl SubAssign<f64> for f64