Trait alloc::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: Point) {
        *self = Point {
            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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Implementations on Foreign Types

impl SubAssign<Duration> for Instant

fn sub_assign(&mut self, other: Duration)

impl SubAssign<Duration> for SystemTime

fn sub_assign(&mut self, other: Duration)

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

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

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

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

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

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

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

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

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

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

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

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

impl SubAssign<i8> for i8

fn sub_assign(&mut self, other: i8)

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

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

impl SubAssign<u32> for u32

fn sub_assign(&mut self, other: u32)

impl SubAssign<usize> for usize

fn sub_assign(&mut self, other: usize)

impl SubAssign<i128> for i128

fn sub_assign(&mut self, other: i128)

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

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

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

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

impl SubAssign<f32> for f32

fn sub_assign(&mut self, other: f32)

impl SubAssign<u128> for u128

fn sub_assign(&mut self, other: u128)

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

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

impl SubAssign<i16> for i16

fn sub_assign(&mut self, other: i16)

impl SubAssign<f64> for f64

fn sub_assign(&mut self, other: f64)

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

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

impl SubAssign<u64> for u64

fn sub_assign(&mut self, other: u64)

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

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

impl SubAssign<u16> for u16

fn sub_assign(&mut self, other: u16)

impl SubAssign<u8> for u8

fn sub_assign(&mut self, other: u8)

impl SubAssign<i64> for i64

fn sub_assign(&mut self, other: i64)

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

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

impl SubAssign<isize> for isize

fn sub_assign(&mut self, other: isize)

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

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

impl SubAssign<i32> for i32

fn sub_assign(&mut self, other: i32)

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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<'a> SubAssign<&'a Wrapping<i128>> for Wrapping<i128>

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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