Module uniform 

The technique of choice, plus integration with the rand crate.

This module is an alias for pekkizen, whose leading-zeros technique provides complete coverage of [0 . . 1) at almost the cost of the 53-bit division scaling, consuming one 64-bit word per call with probability 1 − 2⁻¹².

The unif_01 function converts any source of random 64-bit words; with the rand feature (enabled by default), the Unif01Ext extension trait additionally endows every generator implementing rand_core::Rng with the same conversion as a unif_01 method.

Re-exports

pub use crate::pekkizen::*;

Traits

Unif01Ext

Extension trait adding a unif_01 method to every generator implementing rand_core::Rng (in particular, to the generators of the rand crate).

Functions

unif_01

Returns a random f64 distributed as a uniform real in [0 . . 1) rounded down to the nearest representable value: every float in [0 . . 1) is reachable, subnormals and 0 included, with probability equal to the measure of the reals that round down to it.