Struct CycleWalkState 

pub struct CycleWalkState {
    pub half_bits: u32,
    pub half_mask: u64,
    pub inc: u64,
    pub round_keys: [u64; 6],
}

Pre-computed Feistel state for the cycle_walk node. Built once at construction from (range, seed, stream) via the multi-source #[poly_const] setup; consumed read-only by every cycle and by the compiled_u64 override’s captured closure.

Fields

half_bits: u32

Number of bits per Feistel half (total domain is 2^(2*half_bits)).

half_mask: u64

Bitmask for each half: (1 << half_bits) - 1.

inc: u64

PCG-derived LCG increment, 2 * stream + 1. Published to the JIT classifier as the third element of jit_constants.

round_keys: [u64; 6]

Pre-computed round keys derived from seed and stream.

Trait Implementations

impl PolydatSetup for CycleWalkState