Struct tokio_stream::stream_map::rand::FastRand

pub(crate) struct FastRand {
    one: Cell<u32>,
    two: Cell<u32>,
}

Fast random number generate

Implement xorshift64+: 2 32-bit xorshift sequences added together. Shift triplet [17,7,16] was calculated as indicated in Marsaglia’s Xorshift paper: https://www.jstatsoft.org/article/view/v008i14/xorshift.pdf This generator passes the SmallCrush suite, part of TestU01 framework: http://simul.iro.umontreal.ca/testu01/tu01.html

Fields

one: Cell<u32>

two: Cell<u32>

Implementations

impl FastRand

pub(crate) fn new(seed: u64) -> FastRand

Initialize a new, thread-local, fast random number generator.

pub(crate) fn fastrand_n(&self, n: u32) -> u32

fn fastrand(&self) -> u32

Trait Implementations

impl Debug for FastRand

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

Formats the value using the given formatter.