Struct bc_rand::SeededRandomNumberGenerator

pub struct SeededRandomNumberGenerator { /* private fields */ }

A random number generator that can be used as a source of deterministic pseudo-randomness for testing purposes.

Implementations

impl SeededRandomNumberGenerator

pub fn new(seed: [u64; 4]) -> Self

Creates a new seeded random number generator.

The seed should be a 256-bit value, represented as an array of 4 64-bit integers. For the output distribution to look random, the seed should not have any obvious patterns, like all zeroes or all ones.

This is not cryptographically secure, and should only be used for testing purposes.

pub fn next_u64(&mut self) -> u64

Trait Implementations

impl Clone for SeededRandomNumberGenerator

fn clone(&self) -> SeededRandomNumberGenerator

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SeededRandomNumberGenerator

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl RandomNumberGenerator for SeededRandomNumberGenerator

fn random_data(&mut self, size: usize) -> Vec<u8>

Returns a vector of random bytes of the given size.

fn fill_random_data(&mut self, data: &mut [u8])

impl RngCore for SeededRandomNumberGenerator

fn next_u32(&mut self) -> u32

Return the next random u32.

fn next_u64(&mut self) -> u64

Return the next random u64.

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

Fill dest with random data.

fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error>

Fill dest entirely with random data.

impl CryptoRng for SeededRandomNumberGenerator