Trait One 

pub trait One: Sized {
    const ONE: Self;

    // Provided methods
    fn one() -> Self
       where Self: Sized { ... }
    fn set_one(&mut self) -> &mut Self { ... }
    fn is_one(&self) -> bool
       where Self: PartialEq { ... }
    fn is_non_one(&self) -> bool
       where Self: PartialEq { ... }
}

Define the 1 representation : The neutral element of the multiplication such that x * X::ONE = x

Required Associated Constants

const ONE: Self

The neutral element of the multiplication such that x * X::ONE = x

Provided Methods

fn one() -> Self

where Self: Sized,

fn set_one(&mut self) -> &mut Self

fn is_one(&self) -> bool

where Self: PartialEq,

fn is_non_one(&self) -> bool

where Self: PartialEq,

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl One for bool

const ONE: bool = true

impl One for f32

const ONE: f32

impl One for f64

const ONE: f64

impl One for i8

const ONE: i8

impl One for i16

const ONE: i16

impl One for i32

const ONE: i32

impl One for i64

const ONE: i64

impl One for isize

const ONE: isize

impl One for u8

const ONE: u8

impl One for u16

const ONE: u16

impl One for u32

const ONE: u32

impl One for u64

const ONE: u64

impl One for usize

const ONE: usize

impl<T> One for Saturating<T>

where T: One,

const ONE: Saturating<T>

impl<T> One for Wrapping<T>

where T: One,

const ONE: Wrapping<T>

impl<T, const N: usize> One for [T; N]

where T: One,

const ONE: [T; N]

Implementors