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 SignedDuration

impl SubAssign for StaticVarApiFlags

impl SubAssign for CipherCtxFlags

impl SubAssign for CMSOptions

impl SubAssign for OcspFlag

impl SubAssign for Pkcs7Flags

impl SubAssign for ExtensionContext

impl SubAssign for ShutdownState

impl SubAssign for SslMode

impl SubAssign for SslOptions

impl SubAssign for SslSessionCacheMode

impl SubAssign for SslVerifyMode

impl SubAssign for X509CheckFlags

impl SubAssign for X509VerifyFlags

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_snippets::imports::RustBigInt

impl SubAssign for multiversx_sc_snippets::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_snippets::imports::RustBigInt

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

impl SubAssign<i8> for Weekday

impl SubAssign<i8> for Saturating<i8>

impl SubAssign<i8> for Wrapping<i8>

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

impl SubAssign<i16> for Weekday

impl SubAssign<i16> for Saturating<i16>

impl SubAssign<i16> for Wrapping<i16>

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

impl SubAssign<i32> for Weekday

impl SubAssign<i32> for Saturating<i32>

impl SubAssign<i32> for Wrapping<i32>

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

impl SubAssign<i64> for Weekday

impl SubAssign<i64> for Saturating<i64>

impl SubAssign<i64> for Wrapping<i64>

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

impl SubAssign<i128> for Saturating<i128>

impl SubAssign<i128> for Wrapping<i128>

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

impl SubAssign<isize> for Saturating<isize>

impl SubAssign<isize> for Wrapping<isize>

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

impl SubAssign<u8> for Saturating<u8>

impl SubAssign<u8> for Wrapping<u8>

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

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

impl SubAssign<u16> for Saturating<u16>

impl SubAssign<u16> for Wrapping<u16>

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

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

impl SubAssign<u32> for Saturating<u32>

impl SubAssign<u32> for Wrapping<u32>

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

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

impl SubAssign<u64> for Saturating<u64>

impl SubAssign<u64> for Wrapping<u64>

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

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

impl SubAssign<u128> for Saturating<u128>

impl SubAssign<u128> for Wrapping<u128>

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

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

impl SubAssign<usize> for Saturating<usize>

impl SubAssign<usize> for Wrapping<usize>

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

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

impl SubAssign<Duration> for std::time::Instant

impl SubAssign<Duration> for SystemTime

impl SubAssign<Duration> for Date

Subtracts an unsigned duration of time from a date in place.

This uses checked arithmetic and panics on overflow. To handle overflow without panics, use Date::checked_sub.

impl SubAssign<Duration> for DateTime

Subtracts an unsigned duration of time from a datetime in place.

This uses checked arithmetic and panics on overflow. To handle overflow without panics, use DateTime::checked_sub.

impl SubAssign<Duration> for Time

Subtracts an unsigned duration of time in place. This uses wrapping arithmetic.

For checked arithmetic, see Time::checked_sub.

impl SubAssign<Duration> for Timestamp

Subtracts an unsigned duration of time from a timestamp in place.

This uses checked arithmetic and panics on overflow. To handle overflow without panics, use Timestamp::checked_sub.

impl SubAssign<Duration> for Offset

Subtracts an unsigned duration of time from an offset in place. This panics on overflow.

For checked arithmetic, see Offset::checked_sub.

impl SubAssign<Duration> for Zoned

Subtracts an unsigned duration of time from a zoned datetime in place.

This uses checked arithmetic and panics on overflow. To handle overflow without panics, use Zoned::checked_sub.

impl SubAssign<Duration> for tokio::time::instant::Instant

impl SubAssign<Effects> for Style

Examples

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

impl SubAssign<SignedDuration> for Date

Subtracts a signed duration of time from a date in place.

This uses checked arithmetic and panics on overflow. To handle overflow without panics, use Date::checked_sub.

impl SubAssign<SignedDuration> for DateTime

Subtracts a signed duration of time from a datetime in place.

This uses checked arithmetic and panics on overflow. To handle overflow without panics, use DateTime::checked_sub.

impl SubAssign<SignedDuration> for Time

Subtracts a signed duration of time in place. This uses wrapping arithmetic.

For checked arithmetic, see Time::checked_sub.

impl SubAssign<SignedDuration> for Timestamp

Subtracts a signed duration of time from a timestamp in place.

This uses checked arithmetic and panics on overflow. To handle overflow without panics, use Timestamp::checked_sub.

impl SubAssign<SignedDuration> for Offset

Subtracts a signed duration of time from an offset in place. This panics on overflow.

For checked arithmetic, see Offset::checked_sub.

impl SubAssign<SignedDuration> for Zoned

Subtracts a signed duration of time from a zoned datetime in place.

This uses checked arithmetic and panics on overflow. To handle overflow without panics, use Zoned::checked_sub.

impl SubAssign<Span> for Date

Subtracts a span of time from a date in place.

This uses checked arithmetic and panics on overflow. To handle overflow without panics, use Date::checked_sub.

impl SubAssign<Span> for DateTime

Subtracts a span of time from a datetime in place.

This uses checked arithmetic and panics on overflow. To handle overflow without panics, use DateTime::checked_sub.

impl SubAssign<Span> for Time

Subtracts a span of time in place. This uses wrapping arithmetic.

For checked arithmetic, see Time::checked_sub.

impl SubAssign<Span> for Timestamp

Subtracts a span of time from a timestamp in place.

This uses checked arithmetic and panics when it fails. To handle arithmetic without panics, use Timestamp::checked_sub. Note that the failure condition includes overflow and using a Span with non-zero units greater than hours.

impl SubAssign<Span> for Offset

Subtracts a span of time from an offset in place. This panics on overflow.

For checked arithmetic, see Offset::checked_sub.

impl SubAssign<Span> for Zoned

Subtracts a span of time from a zoned datetime in place.

This uses checked arithmetic and panics on overflow. To handle overflow without panics, use Zoned::checked_sub.

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_snippets::imports::BigInt<M>

where M: ManagedTypeApi,

impl<M> SubAssign for multiversx_sc_snippets::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_snippets::imports::BigInt<M>

where M: ManagedTypeApi,

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

where M: ManagedTypeApi,

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

where M: ManagedTypeApi,

impl<M> SubAssign<u64> for multiversx_sc_snippets::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 Isize<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<O> SubAssign for Usize<O>

where O: ByteOrder,

impl<O> SubAssign<f32> for F32<O>

where O: ByteOrder,

impl<O> SubAssign<f64> for F64<O>

where O: ByteOrder,

impl<O> SubAssign<i16> for I16<O>

where O: ByteOrder,

impl<O> SubAssign<i32> for I32<O>

where O: ByteOrder,

impl<O> SubAssign<i64> for I64<O>

where O: ByteOrder,

impl<O> SubAssign<i128> for I128<O>

where O: ByteOrder,

impl<O> SubAssign<isize> for Isize<O>

where O: ByteOrder,

impl<O> SubAssign<u16> for U16<O>

where O: ByteOrder,

impl<O> SubAssign<u32> for U32<O>

where O: ByteOrder,

impl<O> SubAssign<u64> for U64<O>

where O: ByteOrder,

impl<O> SubAssign<u128> for U128<O>

where O: ByteOrder,

impl<O> SubAssign<usize> for Usize<O>

where O: ByteOrder,

impl<O> SubAssign<F32<O>> for f32

where O: ByteOrder,

impl<O> SubAssign<F64<O>> for f64

where O: ByteOrder,

impl<O> SubAssign<I16<O>> for i16

where O: ByteOrder,

impl<O> SubAssign<I32<O>> for i32

where O: ByteOrder,

impl<O> SubAssign<I64<O>> for i64

where O: ByteOrder,

impl<O> SubAssign<I128<O>> for i128

where O: ByteOrder,

impl<O> SubAssign<Isize<O>> for isize

where O: ByteOrder,

impl<O> SubAssign<U16<O>> for u16

where O: ByteOrder,

impl<O> SubAssign<U32<O>> for u32

where O: ByteOrder,

impl<O> SubAssign<U64<O>> for u64

where O: ByteOrder,

impl<O> SubAssign<U128<O>> for u128

where O: ByteOrder,

impl<O> SubAssign<Usize<O>> for usize

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,