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>

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 Wrapping<i8>

impl SubAssign for Wrapping<i16>

impl SubAssign for Wrapping<i32>

impl SubAssign for Wrapping<i64>

impl SubAssign for Wrapping<i128>

impl SubAssign for Wrapping<isize>

impl SubAssign for Wrapping<u8>

impl SubAssign for Wrapping<u16>

impl SubAssign for Wrapping<u32>

impl SubAssign for Wrapping<u64>

impl SubAssign for Wrapping<u128>

impl SubAssign for Wrapping<usize>

impl SubAssign for Duration

impl SubAssign for Effects

Examples

let mut effects = anstyle::Effects::BOLD | anstyle::Effects::UNDERLINE;
effects -= anstyle::Effects::BOLD;
assert_eq!(format!("{:?}", effects), "Effects(UNDERLINE)");

impl SubAssign for Fe32

impl SubAssign for EdwardsPoint

impl SubAssign for RistrettoPoint

impl SubAssign for Scalar

impl SubAssign for StaticVarApiFlags

impl SubAssign for WasmFeatures

impl SubAssign for SegmentFlags

impl SubAssign for SymbolFlags

impl SubAssign for CodeMetadata

impl SubAssign for EsdtLocalRoleFlags

impl SubAssign for multiversx_sc_scenario::imports::RustBigInt

impl SubAssign for multiversx_sc_scenario::imports::RustBigUint

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>

impl SubAssign<&i8> for Wrapping<i8>

impl SubAssign<&i16> for i16

impl SubAssign<&i16> for Saturating<i16>

impl SubAssign<&i16> for Wrapping<i16>

impl SubAssign<&i32> for i32

impl SubAssign<&i32> for Saturating<i32>

impl SubAssign<&i32> for Wrapping<i32>

impl SubAssign<&i64> for i64

impl SubAssign<&i64> for Saturating<i64>

impl SubAssign<&i64> for Wrapping<i64>

impl SubAssign<&i128> for i128

impl SubAssign<&i128> for Saturating<i128>

impl SubAssign<&i128> for Wrapping<i128>

impl SubAssign<&isize> for isize

impl SubAssign<&isize> for Saturating<isize>

impl SubAssign<&isize> for Wrapping<isize>

impl SubAssign<&u8> for u8

impl SubAssign<&u8> for Saturating<u8>

impl SubAssign<&u8> for Wrapping<u8>

impl SubAssign<&u16> for u16

impl SubAssign<&u16> for Saturating<u16>

impl SubAssign<&u16> for Wrapping<u16>

impl SubAssign<&u32> for u32

impl SubAssign<&u32> for Saturating<u32>

impl SubAssign<&u32> for Wrapping<u32>

impl SubAssign<&u64> for u64

impl SubAssign<&u64> for Saturating<u64>

impl SubAssign<&u64> for Wrapping<u64>

impl SubAssign<&u128> for u128

impl SubAssign<&u128> for Saturating<u128>

impl SubAssign<&u128> for Wrapping<u128>

impl SubAssign<&usize> for usize

impl SubAssign<&usize> for Saturating<usize>

impl SubAssign<&usize> for Wrapping<usize>

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<i8>> for Wrapping<i8>

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

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

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

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

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

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

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

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

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

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

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

impl SubAssign<&BigInt> for multiversx_sc_scenario::imports::RustBigInt

impl SubAssign<&BigUint> for multiversx_sc_scenario::imports::RustBigUint

impl SubAssign<i8> for Saturating<i8>

impl SubAssign<i8> for Wrapping<i8>

impl SubAssign<i8> for multiversx_sc_scenario::imports::RustBigInt

impl SubAssign<i16> for Saturating<i16>

impl SubAssign<i16> for Wrapping<i16>

impl SubAssign<i16> for multiversx_sc_scenario::imports::RustBigInt

impl SubAssign<i32> for Saturating<i32>

impl SubAssign<i32> for Wrapping<i32>

impl SubAssign<i32> for multiversx_sc_scenario::imports::RustBigInt

impl SubAssign<i64> for Saturating<i64>

impl SubAssign<i64> for Wrapping<i64>

impl SubAssign<i64> for multiversx_sc_scenario::imports::RustBigInt

impl SubAssign<i128> for Saturating<i128>

impl SubAssign<i128> for Wrapping<i128>

impl SubAssign<i128> for multiversx_sc_scenario::imports::RustBigInt

impl SubAssign<isize> for Saturating<isize>

impl SubAssign<isize> for Wrapping<isize>

impl SubAssign<isize> for multiversx_sc_scenario::imports::RustBigInt

impl SubAssign<u8> for Saturating<u8>

impl SubAssign<u8> for Wrapping<u8>

impl SubAssign<u8> for multiversx_sc_scenario::imports::RustBigInt

impl SubAssign<u8> for multiversx_sc_scenario::imports::RustBigUint

impl SubAssign<u16> for Saturating<u16>

impl SubAssign<u16> for Wrapping<u16>

impl SubAssign<u16> for multiversx_sc_scenario::imports::RustBigInt

impl SubAssign<u16> for multiversx_sc_scenario::imports::RustBigUint

impl SubAssign<u32> for Saturating<u32>

impl SubAssign<u32> for Wrapping<u32>

impl SubAssign<u32> for multiversx_sc_scenario::imports::RustBigInt

impl SubAssign<u32> for multiversx_sc_scenario::imports::RustBigUint

impl SubAssign<u64> for Saturating<u64>

impl SubAssign<u64> for Wrapping<u64>

impl SubAssign<u64> for multiversx_sc_scenario::imports::RustBigInt

impl SubAssign<u64> for multiversx_sc_scenario::imports::RustBigUint

impl SubAssign<u128> for Saturating<u128>

impl SubAssign<u128> for Wrapping<u128>

impl SubAssign<u128> for multiversx_sc_scenario::imports::RustBigInt

impl SubAssign<u128> for multiversx_sc_scenario::imports::RustBigUint

impl SubAssign<usize> for Saturating<usize>

impl SubAssign<usize> for Wrapping<usize>

impl SubAssign<usize> for multiversx_sc_scenario::imports::RustBigInt

impl SubAssign<usize> for multiversx_sc_scenario::imports::RustBigUint

impl SubAssign<Duration> for Instant

impl SubAssign<Duration> for SystemTime

impl SubAssign<Effects> for Style

Examples

let mut style = anstyle::Style::new().bold().underline();
style -= anstyle::Effects::BOLD.into();

impl<'b> SubAssign<&'b EdwardsPoint> for EdwardsPoint

impl<'b> SubAssign<&'b RistrettoPoint> for RistrettoPoint

impl<'b> SubAssign<&'b Scalar> for Scalar

impl<M> SubAssign for BigFloat<M>

where M: ManagedTypeApi,

impl<M> SubAssign for multiversx_sc_scenario::imports::BigInt<M>

where M: ManagedTypeApi,

impl<M> SubAssign for multiversx_sc_scenario::imports::BigUint<M>

where M: ManagedTypeApi,

impl<M> SubAssign<&BigFloat<M>> for BigFloat<M>

where M: ManagedTypeApi,

impl<M> SubAssign<&BigInt<M>> for multiversx_sc_scenario::imports::BigInt<M>

where M: ManagedTypeApi,

impl<M> SubAssign<&BigUint<M>> for multiversx_sc_scenario::imports::BigUint<M>

where M: ManagedTypeApi,

impl<M> SubAssign<u32> for multiversx_sc_scenario::imports::BigUint<M>

where M: ManagedTypeApi,

impl<M> SubAssign<u64> for multiversx_sc_scenario::imports::BigUint<M>

where M: ManagedTypeApi,

impl<M, D1, D2> SubAssign<&ManagedDecimal<M, D2>> for ManagedDecimal<M, D1>

where M: ManagedTypeApi, D1: Decimals, D2: Decimals,

impl<M, D1, D2> SubAssign<&ManagedDecimalSigned<M, D2>> for ManagedDecimalSigned<M, D1>

where M: ManagedTypeApi, D1: Decimals, D2: Decimals,

impl<M, D1, D2> SubAssign<ManagedDecimal<M, D2>> for ManagedDecimal<M, D1>

where M: ManagedTypeApi, D1: Decimals, D2: Decimals,

impl<M, D1, D2> SubAssign<ManagedDecimalSigned<M, D2>> for ManagedDecimalSigned<M, D1>

where M: ManagedTypeApi, D1: Decimals, D2: Decimals,

impl<O> SubAssign for F32<O>

where O: ByteOrder,

impl<O> SubAssign for F64<O>

where O: ByteOrder,

impl<O> SubAssign for I16<O>

where O: ByteOrder,

impl<O> SubAssign for I32<O>

where O: ByteOrder,

impl<O> SubAssign for I64<O>

where O: ByteOrder,

impl<O> SubAssign for I128<O>

where O: ByteOrder,

impl<O> SubAssign for U16<O>

where O: ByteOrder,

impl<O> SubAssign for U32<O>

where O: ByteOrder,

impl<O> SubAssign for U64<O>

where O: ByteOrder,

impl<O> SubAssign for U128<O>

where O: ByteOrder,

impl<T, S, A> SubAssign<&HashSet<T, S, A>> for HashSet<T, S, A>

where T: Eq + Hash + Clone, S: BuildHasher, A: Allocator,

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

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