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);

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl SubAssign for BoxedMontyForm

Available on crate feature alloc only.

impl SubAssign for Checked<Limb>

impl SubAssign for Duration

impl SubAssign for Limb

impl SubAssign for Saturating<i8>

impl SubAssign for Saturating<i16>

impl SubAssign for Saturating<i32>

impl SubAssign for Saturating<i64>

impl SubAssign for Saturating<i128>

impl SubAssign for Saturating<isize>

impl SubAssign for Saturating<u8>

impl SubAssign for Saturating<u16>

impl SubAssign for Saturating<u32>

impl SubAssign for Saturating<u64>

impl SubAssign for Saturating<u128>

impl SubAssign for Saturating<usize>

impl SubAssign for crypto_bigint::Wrapping<Limb>

impl SubAssign for core::num::wrapping::Wrapping<i8>

impl SubAssign for core::num::wrapping::Wrapping<i16>

impl SubAssign for core::num::wrapping::Wrapping<i32>

impl SubAssign for core::num::wrapping::Wrapping<i64>

impl SubAssign for core::num::wrapping::Wrapping<i128>

impl SubAssign for core::num::wrapping::Wrapping<isize>

impl SubAssign for core::num::wrapping::Wrapping<u8>

impl SubAssign for core::num::wrapping::Wrapping<u16>

impl SubAssign for core::num::wrapping::Wrapping<u32>

impl SubAssign for core::num::wrapping::Wrapping<u64>

impl SubAssign for core::num::wrapping::Wrapping<u128>

impl SubAssign for core::num::wrapping::Wrapping<usize>

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<&BoxedMontyForm> for BoxedMontyForm

Available on crate feature alloc only.

impl SubAssign<&Checked<Limb>> for Checked<Limb>

impl SubAssign<&Limb> for Limb

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

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

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

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

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

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

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

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

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

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

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

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

impl SubAssign<&Wrapping<Limb>> for crypto_bigint::Wrapping<Limb>

impl SubAssign<&Wrapping<i8>> for core::num::wrapping::Wrapping<i8>

impl SubAssign<&Wrapping<i16>> for core::num::wrapping::Wrapping<i16>

impl SubAssign<&Wrapping<i32>> for core::num::wrapping::Wrapping<i32>

impl SubAssign<&Wrapping<i64>> for core::num::wrapping::Wrapping<i64>

impl SubAssign<&Wrapping<i128>> for core::num::wrapping::Wrapping<i128>

impl SubAssign<&Wrapping<isize>> for core::num::wrapping::Wrapping<isize>

impl SubAssign<&Wrapping<u8>> for core::num::wrapping::Wrapping<u8>

impl SubAssign<&Wrapping<u16>> for core::num::wrapping::Wrapping<u16>

impl SubAssign<&Wrapping<u32>> for core::num::wrapping::Wrapping<u32>

impl SubAssign<&Wrapping<u64>> for core::num::wrapping::Wrapping<u64>

impl SubAssign<&Wrapping<u128>> for core::num::wrapping::Wrapping<u128>

impl SubAssign<&Wrapping<usize>> for core::num::wrapping::Wrapping<usize>

impl SubAssign<&f16> for f16

impl SubAssign<&f32> for f32

impl SubAssign<&f64> for f64

impl SubAssign<&f128> for f128

impl SubAssign<&i8> for Saturating<i8>

impl SubAssign<&i8> for core::num::wrapping::Wrapping<i8>

impl SubAssign<&i8> for i8

impl SubAssign<&i16> for Saturating<i16>

impl SubAssign<&i16> for core::num::wrapping::Wrapping<i16>

impl SubAssign<&i16> for i16

impl SubAssign<&i32> for Saturating<i32>

impl SubAssign<&i32> for core::num::wrapping::Wrapping<i32>

impl SubAssign<&i32> for i32

impl SubAssign<&i64> for Saturating<i64>

impl SubAssign<&i64> for core::num::wrapping::Wrapping<i64>

impl SubAssign<&i64> for i64

impl SubAssign<&i128> for Saturating<i128>

impl SubAssign<&i128> for core::num::wrapping::Wrapping<i128>

impl SubAssign<&i128> for i128

impl SubAssign<&isize> for Saturating<isize>

impl SubAssign<&isize> for core::num::wrapping::Wrapping<isize>

impl SubAssign<&isize> for isize

impl SubAssign<&u8> for Saturating<u8>

impl SubAssign<&u8> for core::num::wrapping::Wrapping<u8>

impl SubAssign<&u8> for u8

impl SubAssign<&u16> for Saturating<u16>

impl SubAssign<&u16> for core::num::wrapping::Wrapping<u16>

impl SubAssign<&u16> for u16

impl SubAssign<&u32> for Saturating<u32>

impl SubAssign<&u32> for core::num::wrapping::Wrapping<u32>

impl SubAssign<&u32> for u32

impl SubAssign<&u64> for Saturating<u64>

impl SubAssign<&u64> for core::num::wrapping::Wrapping<u64>

impl SubAssign<&u64> for u64

impl SubAssign<&u128> for Saturating<u128>

impl SubAssign<&u128> for core::num::wrapping::Wrapping<u128>

impl SubAssign<&u128> for u128

impl SubAssign<&usize> for Saturating<usize>

impl SubAssign<&usize> for core::num::wrapping::Wrapping<usize>

impl SubAssign<&usize> for usize

impl SubAssign<i8> for Saturating<i8>

impl SubAssign<i8> for core::num::wrapping::Wrapping<i8>

impl SubAssign<i16> for Saturating<i16>

impl SubAssign<i16> for core::num::wrapping::Wrapping<i16>

impl SubAssign<i32> for Saturating<i32>

impl SubAssign<i32> for core::num::wrapping::Wrapping<i32>

impl SubAssign<i64> for Saturating<i64>

impl SubAssign<i64> for core::num::wrapping::Wrapping<i64>

impl SubAssign<i128> for Saturating<i128>

impl SubAssign<i128> for core::num::wrapping::Wrapping<i128>

impl SubAssign<isize> for Saturating<isize>

impl SubAssign<isize> for core::num::wrapping::Wrapping<isize>

impl SubAssign<u8> for BoxedUint

Available on crate feature alloc only.

impl SubAssign<u8> for Saturating<u8>

impl SubAssign<u8> for core::num::wrapping::Wrapping<u8>

impl SubAssign<u16> for BoxedUint

Available on crate feature alloc only.

impl SubAssign<u16> for Saturating<u16>

impl SubAssign<u16> for core::num::wrapping::Wrapping<u16>

impl SubAssign<u32> for BoxedUint

Available on crate feature alloc only.

impl SubAssign<u32> for Saturating<u32>

impl SubAssign<u32> for core::num::wrapping::Wrapping<u32>

impl SubAssign<u64> for BoxedUint

Available on crate feature alloc only.

impl SubAssign<u64> for Saturating<u64>

impl SubAssign<u64> for core::num::wrapping::Wrapping<u64>

impl SubAssign<u128> for BoxedUint

Available on crate feature alloc only.

impl SubAssign<u128> for Saturating<u128>

impl SubAssign<u128> for core::num::wrapping::Wrapping<u128>

impl SubAssign<usize> for Saturating<usize>

impl SubAssign<usize> for core::num::wrapping::Wrapping<usize>

impl<MOD: ConstMontyParams<LIMBS>, const LIMBS: usize> SubAssign for ConstMontyForm<MOD, LIMBS>

impl<MOD: ConstMontyParams<LIMBS>, const LIMBS: usize> SubAssign<&ConstMontyForm<MOD, LIMBS>> for ConstMontyForm<MOD, LIMBS>

impl<Rhs: AsRef<UintRef>> SubAssign<Rhs> for BoxedUint

Available on crate feature alloc only.

impl<Rhs: AsRef<UintRef>> SubAssign<Rhs> for crypto_bigint::Wrapping<BoxedUint>

Available on crate feature alloc only.

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

where Simd<T, N>: Sub<U, Output = Simd<T, N>>, T: SimdElement,

impl<const LIMBS: usize> SubAssign for Checked<Int<LIMBS>>

impl<const LIMBS: usize> SubAssign for Checked<Uint<LIMBS>>

impl<const LIMBS: usize> SubAssign for FixedMontyForm<LIMBS>

impl<const LIMBS: usize> SubAssign for Int<LIMBS>

impl<const LIMBS: usize> SubAssign for Uint<LIMBS>

impl<const LIMBS: usize> SubAssign for crypto_bigint::Wrapping<Int<LIMBS>>

impl<const LIMBS: usize> SubAssign for crypto_bigint::Wrapping<Uint<LIMBS>>

impl<const LIMBS: usize> SubAssign<&Checked<Int<LIMBS>>> for Checked<Int<LIMBS>>

impl<const LIMBS: usize> SubAssign<&Checked<Uint<LIMBS>>> for Checked<Uint<LIMBS>>

impl<const LIMBS: usize> SubAssign<&FixedMontyForm<LIMBS>> for FixedMontyForm<LIMBS>

impl<const LIMBS: usize> SubAssign<&Int<LIMBS>> for Int<LIMBS>

impl<const LIMBS: usize> SubAssign<&Uint<LIMBS>> for Uint<LIMBS>

impl<const LIMBS: usize> SubAssign<&Wrapping<Int<LIMBS>>> for crypto_bigint::Wrapping<Int<LIMBS>>

impl<const LIMBS: usize> SubAssign<&Wrapping<Uint<LIMBS>>> for crypto_bigint::Wrapping<Uint<LIMBS>>