pub trait Zero: Sized + Add<Self, Output = Self> {
    // Required methods
    fn zero() -> Self;
    fn is_zero(&self) -> bool;

    // Provided method
    fn set_zero(&mut self) { ... }
}
Expand description

Defines an additive identity element for Self.

Laws

a + 0 = a       ∀ a ∈ Self
0 + a = a       ∀ a ∈ Self

Required Methods§

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fn zero() -> Self

Returns the additive identity element of Self, 0.

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.

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fn is_zero(&self) -> bool

Returns true if self is equal to the additive identity.

Provided Methods§

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fn set_zero(&mut self)

Sets self to the additive identity element of Self, 0.

Implementations on Foreign Types§

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impl Zero for u64

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fn zero() -> u64

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fn is_zero(&self) -> bool

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impl Zero for usize

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impl Zero for i32

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fn zero() -> i32

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fn is_zero(&self) -> bool

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impl Zero for u32

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fn zero() -> u32

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fn is_zero(&self) -> bool

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impl Zero for u16

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fn zero() -> u16

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fn is_zero(&self) -> bool

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impl Zero for f32

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fn zero() -> f32

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fn is_zero(&self) -> bool

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impl Zero for isize

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impl Zero for f64

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fn zero() -> f64

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fn is_zero(&self) -> bool

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impl Zero for i64

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fn zero() -> i64

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fn is_zero(&self) -> bool

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impl Zero for i128

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impl Zero for i8

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fn zero() -> i8

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fn is_zero(&self) -> bool

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impl Zero for i16

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fn zero() -> i16

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fn is_zero(&self) -> bool

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impl Zero for u128

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impl<T> Zero for Wrapping<T>where T: Zero, Wrapping<T>: Add<Wrapping<T>, Output = Wrapping<T>>,

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fn is_zero(&self) -> bool

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fn set_zero(&mut self)

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fn zero() -> Wrapping<T>

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impl Zero for u8

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fn zero() -> u8

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fn is_zero(&self) -> bool

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impl<T> Zero for Ratio<T>where T: Clone + Integer,

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fn zero() -> Ratio<T>

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fn is_zero(&self) -> bool

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fn set_zero(&mut self)

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impl Zero for BigInt

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fn zero() -> BigInt

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fn set_zero(&mut self)

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fn is_zero(&self) -> bool

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impl Zero for BigUint

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fn zero() -> BigUint

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fn set_zero(&mut self)

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fn is_zero(&self) -> bool

Implementors§

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impl<T> Zero for Vector<T>where T: Zero,