Trait Multiplication 

pub trait Multiplication:
    Addition
    + Mul<Output = Self>
    + MulAssign<Self>
    + Div<Self, Output = Self>
    + DivAssign<Self>
    + Rem<Self, Output = Self>
    + RemAssign<Self> {
    const ONE: Self;

    // Required methods
    fn mul_add(self, a: Self, b: Self) -> Self;
    fn mul_add_assign(&mut self, a: Self, b: Self);
    fn powi(self, exp: i32) -> Self;

    // Provided methods
    fn half(self) -> Self { ... }
    fn double(self) -> Self { ... }
    fn inv(self) -> Self { ... }
}

The Multiplication trait provides the multiplicative identity and operations for a Number type.

Required Associated Constants

const ONE: Self

The multiplicative identity.

Required Methods

fn mul_add(self, a: Self, b: Self) -> Self

Returns self + a * b, potentially as a fused multiply-add operation.

fn mul_add_assign(&mut self, a: Self, b: Self)

Replace self with self + a * b, potentially as a fused multiply-add-assign operation.

fn powi(self, exp: i32) -> Self

Returns self raised to the power of exp.

Provided Methods

fn half(self) -> Self

Returns self / 2.

fn double(self) -> Self

Returns self * 2.

fn inv(self) -> Self

Returns the multiplicative inverse of self.

Dyn Compatibility

This trait is not dyn compatible.

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

Implementations on Foreign Types

impl Multiplication for f32

const ONE: Self = 1.0

fn mul_add(self, a: Self, b: Self) -> Self

fn mul_add_assign(&mut self, a: Self, b: Self)

fn powi(self, exp: i32) -> Self

impl Multiplication for f64

const ONE: Self = 1.0

fn mul_add(self, a: Self, b: Self) -> Self

fn mul_add_assign(&mut self, a: Self, b: Self)

fn powi(self, exp: i32) -> Self

impl Multiplication for i8

const ONE: Self = 1

fn mul_add(self, a: Self, b: Self) -> Self

fn mul_add_assign(&mut self, a: Self, b: Self)

fn powi(self, exp: i32) -> Self

impl Multiplication for i16

const ONE: Self = 1

fn mul_add(self, a: Self, b: Self) -> Self

fn mul_add_assign(&mut self, a: Self, b: Self)

fn powi(self, exp: i32) -> Self

impl Multiplication for i32

const ONE: Self = 1

fn mul_add(self, a: Self, b: Self) -> Self

fn mul_add_assign(&mut self, a: Self, b: Self)

fn powi(self, exp: i32) -> Self

impl Multiplication for i64

const ONE: Self = 1

fn mul_add(self, a: Self, b: Self) -> Self

fn mul_add_assign(&mut self, a: Self, b: Self)

fn powi(self, exp: i32) -> Self

impl Multiplication for i128

const ONE: Self = 1

fn mul_add(self, a: Self, b: Self) -> Self

fn mul_add_assign(&mut self, a: Self, b: Self)

fn powi(self, exp: i32) -> Self

impl Multiplication for isize

const ONE: Self = 1

fn mul_add(self, a: Self, b: Self) -> Self

fn mul_add_assign(&mut self, a: Self, b: Self)

fn powi(self, exp: i32) -> Self

impl Multiplication for u8

const ONE: Self = 1

fn mul_add(self, a: Self, b: Self) -> Self

fn mul_add_assign(&mut self, a: Self, b: Self)

fn powi(self, exp: i32) -> Self

impl Multiplication for u16

const ONE: Self = 1

fn mul_add(self, a: Self, b: Self) -> Self

fn mul_add_assign(&mut self, a: Self, b: Self)

fn powi(self, exp: i32) -> Self

impl Multiplication for u32

const ONE: Self = 1

fn mul_add(self, a: Self, b: Self) -> Self

fn mul_add_assign(&mut self, a: Self, b: Self)

fn powi(self, exp: i32) -> Self

impl Multiplication for u64

const ONE: Self = 1

fn mul_add(self, a: Self, b: Self) -> Self

fn mul_add_assign(&mut self, a: Self, b: Self)

fn powi(self, exp: i32) -> Self

impl Multiplication for u128

const ONE: Self = 1

fn mul_add(self, a: Self, b: Self) -> Self

fn mul_add_assign(&mut self, a: Self, b: Self)

fn powi(self, exp: i32) -> Self

impl Multiplication for usize

const ONE: Self = 1

fn mul_add(self, a: Self, b: Self) -> Self

fn mul_add_assign(&mut self, a: Self, b: Self)

fn powi(self, exp: i32) -> Self

Implementors

impl Multiplication for Bool

const ONE: Self