Trait Rng 

pub trait Rng:
    Send
    + Sync
    + 'static {
    // Required method
    fn next_u64(&mut self) -> u64;

    // Provided methods
    fn next_f64(&mut self) -> f64 { ... }
    fn next_range(&mut self, range: Range<u64>) -> u64 { ... }
}

A simple PRNG trait for use within middleware.

Required Methods

fn next_u64(&mut self) -> u64

Generate a random u64.

Provided Methods

fn next_f64(&mut self) -> f64

Generate a random f64 between [0, 1).

fn next_range(&mut self, range: Range<u64>) -> u64

Randomly pick a value within the range.

Panic

• If start < end this will panic in debug mode.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<H> Rng for HasherRng<H>

where H: BuildHasher + Send + Sync + 'static,

impl<R> Rng for Box<R>

where R: Rng + ?Sized,