Struct Rng 

pub struct Rng { /* private fields */ }

A deterministic, seedable random number generator.

Implementations

impl Rng

pub fn from_seed(seed: u64) -> Self

A generator with an explicit seed: the same seed always yields the same sequence.

pub fn f32(&mut self) -> f32

A f32 uniformly distributed in [0, 1).

pub fn u32(&mut self, range: Range<u32>) -> u32

A u32 uniformly distributed in range.

Panics

If range is empty (range.start >= range.end), an authoring error.

pub fn i32(&mut self, range: Range<i32>) -> i32

An i32 uniformly distributed in range.

Panics

If range is empty (range.start >= range.end), an authoring error.

pub fn usize(&mut self, range: Range<usize>) -> usize

A usize uniformly distributed in range (e.g. an index).

Panics

If range is empty (range.start >= range.end), an authoring error.

pub fn bool(&mut self) -> bool

A fair coin flip.

Trait Implementations

impl Clone for Rng

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Rng

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

Formats the value using the given formatter.