Struct work_steal_queue::rand::FastRand

#[repr(C)]
pub struct FastRand { /* private fields */ }

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

Implementations

impl FastRand

pub fn new(seed: RngSeed) -> FastRand

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

pub fn replace_seed(&self, seed: RngSeed) -> RngSeed

Replaces the state of the random number generator with the provided seed, returning the seed that represents the previous state of the random number generator.

The random number generator will become equivalent to one created with the same seed.

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

Trait Implementations

impl Debug for FastRand

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

Formats the value using the given formatter.