Trait SubAssign 

pub trait SubAssign<Rhs = Self> {
    // Required method
    fn sub_assign(&mut self, rhs: Rhs);
}

The subtraction assignment operator -=.

Examples

This example creates a Point struct that implements the SubAssign trait, and then demonstrates sub-assigning to a mutable Point.

use std::ops::SubAssign;

#[derive(Debug, Copy, Clone, PartialEq)]
struct Point {
    x: i32,
    y: i32,
}

impl SubAssign for Point {
    fn sub_assign(&mut self, other: Self) {
        *self = Self {
            x: self.x - other.x,
            y: self.y - other.y,
        };
    }
}

let mut point = Point { x: 3, y: 3 };
point -= Point { x: 2, y: 3 };
assert_eq!(point, Point {x: 1, y: 0});

Required Methods

fn sub_assign(&mut self, rhs: Rhs)

Performs the -= operation.

Example

let mut x: u32 = 12;
x -= 1;
assert_eq!(x, 11);

Implementors

impl SubAssign for f16

impl SubAssign for f32

impl SubAssign for f64

impl SubAssign for f128

impl SubAssign for i8

impl SubAssign for i16

impl SubAssign for i32

impl SubAssign for i64

impl SubAssign for i128

impl SubAssign for isize

impl SubAssign for u8

impl SubAssign for u16

impl SubAssign for u32

impl SubAssign for u64

impl SubAssign for u128

impl SubAssign for usize

impl SubAssign for Saturating<i8>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Saturating<i16>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Saturating<i32>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Saturating<i64>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Saturating<i128>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Saturating<isize>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Saturating<u8>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Saturating<u16>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Saturating<u32>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Saturating<u64>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Saturating<u128>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Saturating<usize>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Wrapping<i8>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Wrapping<i16>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Wrapping<i32>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Wrapping<i64>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Wrapping<i128>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Wrapping<isize>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Wrapping<u8>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Wrapping<u16>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Wrapping<u32>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Wrapping<u64>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Wrapping<u128>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Wrapping<usize>

Available on non-crate feature ferrocene_certified only.

impl SubAssign for Duration

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&f16> for f16

impl SubAssign<&f32> for f32

impl SubAssign<&f64> for f64

impl SubAssign<&f128> for f128

impl SubAssign<&i8> for i8

impl SubAssign<&i8> for Saturating<i8>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&i8> for Wrapping<i8>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&i16> for i16

impl SubAssign<&i16> for Saturating<i16>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&i16> for Wrapping<i16>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&i32> for i32

impl SubAssign<&i32> for Saturating<i32>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&i32> for Wrapping<i32>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&i64> for i64

impl SubAssign<&i64> for Saturating<i64>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&i64> for Wrapping<i64>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&i128> for i128

impl SubAssign<&i128> for Saturating<i128>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&i128> for Wrapping<i128>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&isize> for isize

impl SubAssign<&isize> for Saturating<isize>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&isize> for Wrapping<isize>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&u8> for u8

impl SubAssign<&u8> for Saturating<u8>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&u8> for Wrapping<u8>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&u16> for u16

impl SubAssign<&u16> for Saturating<u16>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&u16> for Wrapping<u16>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&u32> for u32

impl SubAssign<&u32> for Saturating<u32>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&u32> for Wrapping<u32>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&u64> for u64

impl SubAssign<&u64> for Saturating<u64>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&u64> for Wrapping<u64>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&u128> for u128

impl SubAssign<&u128> for Saturating<u128>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&u128> for Wrapping<u128>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&usize> for usize

impl SubAssign<&usize> for Saturating<usize>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&usize> for Wrapping<usize>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Saturating<i8>> for Saturating<i8>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Saturating<i16>> for Saturating<i16>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Saturating<i32>> for Saturating<i32>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Saturating<i64>> for Saturating<i64>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Saturating<i128>> for Saturating<i128>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Saturating<isize>> for Saturating<isize>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Saturating<u8>> for Saturating<u8>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Saturating<u16>> for Saturating<u16>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Saturating<u32>> for Saturating<u32>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Saturating<u64>> for Saturating<u64>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Saturating<u128>> for Saturating<u128>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Saturating<usize>> for Saturating<usize>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Wrapping<i8>> for Wrapping<i8>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Wrapping<i16>> for Wrapping<i16>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Wrapping<i32>> for Wrapping<i32>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Wrapping<i64>> for Wrapping<i64>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Wrapping<i128>> for Wrapping<i128>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Wrapping<isize>> for Wrapping<isize>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Wrapping<u8>> for Wrapping<u8>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Wrapping<u16>> for Wrapping<u16>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Wrapping<u32>> for Wrapping<u32>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Wrapping<u64>> for Wrapping<u64>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Wrapping<u128>> for Wrapping<u128>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<&Wrapping<usize>> for Wrapping<usize>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<i8> for Saturating<i8>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<i8> for Wrapping<i8>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<i16> for Saturating<i16>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<i16> for Wrapping<i16>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<i32> for Saturating<i32>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<i32> for Wrapping<i32>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<i64> for Saturating<i64>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<i64> for Wrapping<i64>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<i128> for Saturating<i128>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<i128> for Wrapping<i128>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<isize> for Saturating<isize>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<isize> for Wrapping<isize>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<u8> for Saturating<u8>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<u8> for Wrapping<u8>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<u16> for Saturating<u16>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<u16> for Wrapping<u16>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<u32> for Saturating<u32>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<u32> for Wrapping<u32>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<u64> for Saturating<u64>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<u64> for Wrapping<u64>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<u128> for Saturating<u128>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<u128> for Wrapping<u128>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<usize> for Saturating<usize>

Available on non-crate feature ferrocene_certified only.

impl SubAssign<usize> for Wrapping<usize>

Available on non-crate feature ferrocene_certified only.

impl<T, U, const N: usize> SubAssign<U> for Simd<T, N>

where Self: Sub<U, Output = Self>, T: SimdElement, LaneCount<N>: SupportedLaneCount,

Available on non-crate feature ferrocene_certified only.