Struct Pcg64Dxsm 

pub struct Pcg64Dxsm { /* private fields */ }

PCG64DXSM (DXSM output function) pseudo-random number generator.

128-bit linear congruential generator with the DXSM (double-xorshift multiply) output function. Period 2^128. Recommended over the classic XSL-RR Pcg64 for new applications because the DXSM permutation has stronger empirical bit-level randomness.

Trait Implementations

impl BitGenerator for Pcg64Dxsm

fn state_bytes(&self) -> Result<Vec<u8>, FerrayError>

Serialize the full internal state of this generator to a little-endian byte vector. Pair with [set_state_bytes] to restore.

fn set_state_bytes(&mut self, bytes: &[u8]) -> Result<(), FerrayError>

Restore the generator’s state from previously-serialized bytes produced by [state_bytes].

fn next_u64(&mut self) -> u64

Generate the next 64-bit unsigned integer.

fn seed_from_u64(seed: u64) -> Self

Create a new generator seeded from a single u64.

fn jump(&mut self) -> Option<()>

Advance the generator state by a large step (2^128 for Xoshiro256**).

fn stream(_seed: u64, _stream_id: u64) -> Option<Self>

Create a new generator from a seed and a stream ID.

fn next_f64(&mut self) -> f64

Generate a uniformly distributed f64 in [0, 1).

fn next_f32(&mut self) -> f32

Generate a uniformly distributed f32 in [0, 1).

fn fill_bytes(&mut self, dest: &mut [u8])

Fill a byte slice with random bytes.

fn next_u64_bounded(&mut self, bound: u64) -> u64

Generate a u64 in the range [0, bound) using rejection sampling.

impl Clone for Pcg64Dxsm

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.