Trait rand_distr::weighted::alias_method::Weight[−][src]

pub trait Weight: Copy + SampleUniform + PartialOrd<Self> + Add<Self, Output = Self> + AddAssign<Self> + Sub<Self, Output = Self> + SubAssign<Self> + Mul<Self, Output = Self> + MulAssign<Self> + Div<Self, Output = Self> + DivAssign<Self> + Sum<Self> {
    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 WeightedIndex. Currently no guarantees on the correctness of WeightedIndex are given for custom implementations of this trait.

Associated Constants

`pub const MAX: Self`[src]

Maximum number representable by Self.

`pub const ZERO: Self`[src]

Element of Self equivalent to 0.

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Required methods

`pub fn try_from_u32_lossy(n: u32) -> Option<Self>`[src]

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`[src]

Sums all values in slice values.

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Implementations on Foreign Types

`impl Weight for i128`[src]

`pub const MAX: i128`[src]

`pub const ZERO: i128`[src]

`pub fn try_from_u32_lossy(n: u32) -> Option<i128>`[src]

`impl Weight for isize`[src]

`pub const MAX: isize`[src]

`pub const ZERO: isize`[src]

`pub fn try_from_u32_lossy(n: u32) -> Option<isize>`[src]

`impl Weight for u64`[src]

`pub const MAX: u64`[src]

`pub const ZERO: u64`[src]

`pub fn try_from_u32_lossy(n: u32) -> Option<u64>`[src]

`impl Weight for u32`[src]

`pub const MAX: u32`[src]

`pub const ZERO: u32`[src]

`pub fn try_from_u32_lossy(n: u32) -> Option<u32>`[src]

`impl Weight for usize`[src]

`pub const MAX: usize`[src]

`pub const ZERO: usize`[src]

`pub fn try_from_u32_lossy(n: u32) -> Option<usize>`[src]

`impl Weight for f32`[src]

`pub const MAX: f32`[src]

`pub const ZERO: f32`[src]

`pub fn try_from_u32_lossy(n: u32) -> Option<f32>`[src]

`pub fn sum(values: &[f32]) -> f32`[src]

`impl Weight for u128`[src]

`pub const MAX: u128`[src]

`pub const ZERO: u128`[src]

`pub fn try_from_u32_lossy(n: u32) -> Option<u128>`[src]

`impl Weight for u8`[src]

`pub const MAX: u8`[src]

`pub const ZERO: u8`[src]

`pub fn try_from_u32_lossy(n: u32) -> Option<u8>`[src]

`impl Weight for i8`[src]

`pub const MAX: i8`[src]

`pub const ZERO: i8`[src]

`pub fn try_from_u32_lossy(n: u32) -> Option<i8>`[src]

`impl Weight for u16`[src]

`pub const MAX: u16`[src]

`pub const ZERO: u16`[src]

`pub fn try_from_u32_lossy(n: u32) -> Option<u16>`[src]

`impl Weight for i32`[src]

`pub const MAX: i32`[src]

`pub const ZERO: i32`[src]

`pub fn try_from_u32_lossy(n: u32) -> Option<i32>`[src]

`impl Weight for i16`[src]

`pub const MAX: i16`[src]

`pub const ZERO: i16`[src]

`pub fn try_from_u32_lossy(n: u32) -> Option<i16>`[src]

`impl Weight for i64`[src]

`pub const MAX: i64`[src]

`pub const ZERO: i64`[src]

`pub fn try_from_u32_lossy(n: u32) -> Option<i64>`[src]

`impl Weight for f64`[src]

`pub const MAX: f64`[src]

`pub const ZERO: f64`[src]

`pub fn try_from_u32_lossy(n: u32) -> Option<f64>`[src]

`pub fn sum(values: &[f64]) -> f64`[src]

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Implementors

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