Trait rand_distr::weighted_alias::AliasableWeight

pub trait AliasableWeight: Sized + Copy + SampleUniform + PartialOrd + Add<Output = Self> + AddAssign + Sub<Output = Self> + SubAssign + Mul<Output = Self> + MulAssign + Div<Output = Self> + DivAssign + Sum {
    pub const MAX: Self;
    pub const ZERO: Self;

    pub fn try_from_u32_lossy(n: u32) -> Option<Self>;

    pub fn sum(values: &[Self]) -> Self { ... }
}

Trait that must be implemented for weights, that are used with WeightedAliasIndex. Currently no guarantees on the correctness of WeightedAliasIndex are given for custom implementations of this trait.

Associated Constants

pub const MAX: Self

Maximum number representable by Self.

pub const ZERO: Self

Element of Self equivalent to 0.

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Required methods

pub fn try_from_u32_lossy(n: u32) -> Option<Self>

Produce an instance of Self from a u32 value, or return None if out of range. Loss of precision (where Self is a floating point type) is acceptable.

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Provided methods

pub fn sum(values: &[Self]) -> Self

Sums all values in slice values.

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Implementations on Foreign Types

impl AliasableWeight for f64

pub const MAX: Self

pub const ZERO: Self

pub fn try_from_u32_lossy(n: u32) -> Option<Self>

pub fn sum(values: &[Self]) -> Self

impl AliasableWeight for f32

pub const MAX: Self

pub const ZERO: Self

pub fn try_from_u32_lossy(n: u32) -> Option<Self>

pub fn sum(values: &[Self]) -> Self

impl AliasableWeight for usize

pub const MAX: Self

pub const ZERO: Self

pub fn try_from_u32_lossy(n: u32) -> Option<Self>

impl AliasableWeight for u128

pub const MAX: Self

pub const ZERO: Self

pub fn try_from_u32_lossy(n: u32) -> Option<Self>

impl AliasableWeight for u64

pub const MAX: Self

pub const ZERO: Self

pub fn try_from_u32_lossy(n: u32) -> Option<Self>

impl AliasableWeight for u32

pub const MAX: Self

pub const ZERO: Self

pub fn try_from_u32_lossy(n: u32) -> Option<Self>

impl AliasableWeight for u16

pub const MAX: Self

pub const ZERO: Self

pub fn try_from_u32_lossy(n: u32) -> Option<Self>

impl AliasableWeight for u8

pub const MAX: Self

pub const ZERO: Self

pub fn try_from_u32_lossy(n: u32) -> Option<Self>

impl AliasableWeight for isize

pub const MAX: Self

pub const ZERO: Self

pub fn try_from_u32_lossy(n: u32) -> Option<Self>

impl AliasableWeight for i128

pub const MAX: Self

pub const ZERO: Self

pub fn try_from_u32_lossy(n: u32) -> Option<Self>

impl AliasableWeight for i64

pub const MAX: Self

pub const ZERO: Self

pub fn try_from_u32_lossy(n: u32) -> Option<Self>

impl AliasableWeight for i32

pub const MAX: Self

pub const ZERO: Self

pub fn try_from_u32_lossy(n: u32) -> Option<Self>

impl AliasableWeight for i16

pub const MAX: Self

pub const ZERO: Self

pub fn try_from_u32_lossy(n: u32) -> Option<Self>

impl AliasableWeight for i8

pub const MAX: Self

pub const ZERO: Self

pub fn try_from_u32_lossy(n: u32) -> Option<Self>

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Implementors

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