Struct Rng 

pub struct Rng { /* private fields */ }

A random number generator.

Implementations

impl Rng

pub fn new() -> Rng

Creates a new Rng with a random seed.

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

Fills a slice with random bytes.

pub fn gen<T: Random>(&mut self) -> T

Generates a random value.

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

Returns true with a given probability.

The probability is the chance from 0.0 (never) to 1.0 (always) that this function returns true.

pub fn gen_range<T: SampleUniform>(&mut self, range: impl SampleRange<T>) -> T

Generates a random number within a given range.

pub fn gen_ratio<T: Number + SampleUniform>( &mut self, numerator: T, denominator: T, ) -> bool

Returns true with a probability expressed by the ratio between two given numbers.

pub fn shuffle<T>(&mut self, slice: &mut [T])

Randomly shuffles a slice in place.

Trait Implementations

impl Clone for Rng

fn clone(&self) -> Rng

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for Rng

fn default() -> Self

Returns the “default value” for a type.