Struct AliasTableU64 

pub struct AliasTableU64 { /* private fields */ }

Alias table optimized for u64 outcomes (indices 0..N).

Uses three parallel arrays for cache-friendly access. Suitable for the Phase 2 compiled kernel path.

Implementations

impl AliasTableU64

pub fn from_weights(weights: &[f64]) -> Self

Build from weights. Outcomes are implicitly 0..N.

pub fn uniform(n: usize) -> Self

Build a uniform table (all outcomes equally weighted).

pub fn sample(&self, input: u64) -> u64

Sample an outcome index from a uniform u64 input.

Low bits select the slot, high bits test the bias.

pub fn len(&self) -> usize

Number of outcomes in the table.

pub fn is_empty(&self) -> bool

Whether the table has no outcomes.

pub fn biases(&self) -> &[f64]

Access the bias array (for compiled kernel closure capture).

pub fn primaries(&self) -> &[u64]

Access the primary outcome array.

pub fn aliases(&self) -> &[u64]

Access the alias outcome array.

Trait Implementations

impl PolydatSetup for AliasTableU64