Trait num::One

pub trait One: Mul<Self, Output = Self> {
    fn one() -> Self;
}

Defines a multiplicative identity element for Self.

Required Methods

fn one() -> Self

Returns the multiplicative identity element of Self, 1.

Laws

a * 1 = a       ∀ a ∈ Self
1 * a = a       ∀ a ∈ Self

Purity

This function should return the same result at all times regardless of external mutable state, for example values stored in TLS or in static muts.

Implementors

• impl One for u16
• impl One for u64
• impl One for isize
• impl One for usize
• impl One for i8
• impl One for i16
• impl One for f64
• impl One for i64
• impl One for u8
• impl<T> One for Wrapping<T> where
    T: One,
    Wrapping<T>: Mul<Wrapping<T>>,
    <Wrapping<T> as Mul<Wrapping<T>>>::Output == Wrapping<T>, 
• impl One for u32
• impl One for i32
• impl One for f32