Trait num_traits::Zero
[−]
[src]
pub trait Zero: Add<Self, Output = Self> {
fn zero() -> Self;
fn is_zero(&self) -> bool;
}Defines an additive identity element for Self.
Required Methods
fn zero() -> Self
Returns the additive identity element of Self, 0.
Laws
a + 0 = a ∀ a ∈ Self
0 + 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.
fn is_zero(&self) -> bool
Returns true if self is equal to the additive identity.
Implementations on Foreign Types
impl Zero for i16[src]
impl Zero for u8[src]
impl Zero for usize[src]
impl<T> Zero for Wrapping<T> where
T: Zero,
Wrapping<T>: Add<Wrapping<T>>,
<Wrapping<T> as Add<Wrapping<T>>>::Output == Wrapping<T>, [src]
T: Zero,
Wrapping<T>: Add<Wrapping<T>>,
<Wrapping<T> as Add<Wrapping<T>>>::Output == Wrapping<T>,