Struct rand::reader::ReaderRng

pub struct ReaderRng<R> {
    // some fields omitted
}

An RNG that reads random bytes straight from a Reader. This will work best with an infinite reader, but this is not required.

Panics

It will panic if it there is insufficient data to fulfill a request.

Example

use rand::{reader, Rng};
use std::old_io::MemReader;

let mut rng = reader::ReaderRng::new(MemReader::new(vec!(1,2,3,4,5,6,7,8)));
println!("{:x}", rng.gen::<u32>());

Methods

impl<R: Reader> ReaderRng<R>

fn new(r: R) -> ReaderRng<R>

Create a new ReaderRng from a Reader.

Trait Implementations

impl<R: Reader> Rng for ReaderRng<R>

fn next_u32(&mut self) -> u32

fn next_u64(&mut self) -> u64

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

fn next_f32(&mut self) -> f32

fn next_f64(&mut self) -> f64

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

fn gen_iter<'a, T: Rand>(&'a mut self) -> Generator<'a, T, Self>

fn gen_range<T: PartialOrd + SampleRange>(&mut self, low: T, high: T) -> T

fn gen_weighted_bool(&mut self, n: usize) -> bool

fn gen_ascii_chars<'a>(&'a mut self) -> AsciiGenerator<'a, Self>

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

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