Trait core::ops::SubAssign

#[lang = "sub_assign"]
pub trait SubAssign<Rhs = Self> {
    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, 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.

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Implementors

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

fn sub_assign(&mut self, other: Wrapping<i128>)

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

fn sub_assign(&mut self, other: Wrapping<i16>)

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

fn sub_assign(&mut self, other: Wrapping<i32>)

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

fn sub_assign(&mut self, other: Wrapping<i64>)

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

fn sub_assign(&mut self, other: Wrapping<i8>)

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

fn sub_assign(&mut self, other: Wrapping<isize>)

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

fn sub_assign(&mut self, other: Wrapping<u128>)

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

fn sub_assign(&mut self, other: Wrapping<u16>)

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

fn sub_assign(&mut self, other: Wrapping<u32>)

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

fn sub_assign(&mut self, other: Wrapping<u64>)

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

fn sub_assign(&mut self, other: Wrapping<u8>)

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

fn sub_assign(&mut self, other: Wrapping<usize>)

impl SubAssign<Duration> for Duration

fn sub_assign(&mut self, rhs: Duration)

impl SubAssign<f32> for f32

fn sub_assign(&mut self, other: f32)

impl SubAssign<f64> for f64

fn sub_assign(&mut self, other: f64)

impl SubAssign<i128> for i128

fn sub_assign(&mut self, other: i128)

impl SubAssign<i16> for i16

fn sub_assign(&mut self, other: i16)

impl SubAssign<i32> for i32

fn sub_assign(&mut self, other: i32)

impl SubAssign<i64> for i64

fn sub_assign(&mut self, other: i64)

impl SubAssign<i8> for i8

fn sub_assign(&mut self, other: i8)

impl SubAssign<isize> for isize

fn sub_assign(&mut self, other: isize)

impl SubAssign<u128> for u128

fn sub_assign(&mut self, other: u128)

impl SubAssign<u16> for u16

fn sub_assign(&mut self, other: u16)

impl SubAssign<u32> for u32

fn sub_assign(&mut self, other: u32)

impl SubAssign<u64> for u64

fn sub_assign(&mut self, other: u64)

impl SubAssign<u8> for u8

fn sub_assign(&mut self, other: u8)

impl SubAssign<usize> for usize

fn sub_assign(&mut self, other: usize)

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

fn sub_assign(&mut self, other: &Wrapping<i128>)

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

fn sub_assign(&mut self, other: &Wrapping<i16>)

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

fn sub_assign(&mut self, other: &Wrapping<i32>)

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

fn sub_assign(&mut self, other: &Wrapping<i64>)

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

fn sub_assign(&mut self, other: &Wrapping<i8>)

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

fn sub_assign(&mut self, other: &Wrapping<isize>)

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

fn sub_assign(&mut self, other: &Wrapping<u128>)

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

fn sub_assign(&mut self, other: &Wrapping<u16>)

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

fn sub_assign(&mut self, other: &Wrapping<u32>)

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

fn sub_assign(&mut self, other: &Wrapping<u64>)

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

fn sub_assign(&mut self, other: &Wrapping<u8>)

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

fn sub_assign(&mut self, other: &Wrapping<usize>)

impl<'_> SubAssign<&'_ f32> for f32

fn sub_assign(&mut self, other: &f32)

impl<'_> SubAssign<&'_ f64> for f64

fn sub_assign(&mut self, other: &f64)

impl<'_> SubAssign<&'_ i128> for i128

fn sub_assign(&mut self, other: &i128)

impl<'_> SubAssign<&'_ i16> for i16

fn sub_assign(&mut self, other: &i16)

impl<'_> SubAssign<&'_ i32> for i32

fn sub_assign(&mut self, other: &i32)

impl<'_> SubAssign<&'_ i64> for i64

fn sub_assign(&mut self, other: &i64)

impl<'_> SubAssign<&'_ i8> for i8

fn sub_assign(&mut self, other: &i8)

impl<'_> SubAssign<&'_ isize> for isize

fn sub_assign(&mut self, other: &isize)

impl<'_> SubAssign<&'_ u128> for u128

fn sub_assign(&mut self, other: &u128)

impl<'_> SubAssign<&'_ u16> for u16

fn sub_assign(&mut self, other: &u16)

impl<'_> SubAssign<&'_ u32> for u32

fn sub_assign(&mut self, other: &u32)

impl<'_> SubAssign<&'_ u64> for u64

fn sub_assign(&mut self, other: &u64)

impl<'_> SubAssign<&'_ u8> for u8

fn sub_assign(&mut self, other: &u8)

impl<'_> SubAssign<&'_ usize> for usize

fn sub_assign(&mut self, other: &usize)

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