Struct SimpleRng 

pub struct SimpleRng { /* private fields */ }

Simple deterministic random number generator for reproducible tests. Uses a linear congruential generator.

Implementations

impl SimpleRng

pub fn new(seed: u64) -> Self

Create a new RNG with a seed

pub fn next_u64(&mut self) -> u64

Generate next random u64

pub fn gen_range(&mut self, max: usize) -> usize

Generate a random number in range [0, max)

pub fn gen_f64(&mut self) -> f64

Generate a random f64 in [0, 1)

pub fn gen_bool(&mut self, probability: f64) -> bool

Generate a random bool with given probability of true

pub fn choose<'a, T>(&mut self, items: &'a [T]) -> Option<&'a T>

Choose a random element from a slice

Trait Implementations

impl Clone for SimpleRng

fn clone(&self) -> SimpleRng

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SimpleRng

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

Formats the value using the given formatter.