Trait Rng 

pub trait Rng {
    // 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 tower 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 range.start >= range.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".

Implementations on Foreign Types

impl<R: Rng + ?Sized> Rng for Box<R>

fn next_u64(&mut self) -> u64

Implementors

impl<H> Rng for HasherRng<H>

where H: BuildHasher,