Struct SplitMix64 

pub struct SplitMix64 { /* private fields */ }

SplitMix64 PRNG for seeded, deterministic generation.

This is fast and reproducible but not cryptographically secure, so it is not the default. Use it when you need a fixed seed (e.g. tests via word_with / hangul_with); the default word() / hangul() entry points use OsRandom.

Implementations

impl SplitMix64

pub fn new(seed: u64) -> Self

Create a PRNG from an explicit seed (deterministic).

pub fn from_entropy() -> Self

Seed from the system clock. Non-deterministic, non-cryptographic.

pub fn next_u64(&mut self) -> u64

Advance the generator and return the next raw 64-bit value.

Useful for deriving independent child seeds: SplitMix64::new(master.next_u64()).

Trait Implementations

impl RandomSource for SplitMix64

fn gen_below(&mut self, max_exclusive: u32) -> u32

Return a value in 0..max_exclusive. max_exclusive must be positive.