Crate ran

Enums

Rnum

Functions

ran_frange

Transform an f64 number in [0,1) to the range [min:f64,max:f64)

ran_irange

Generate i64 random number in the interval [min:i64,max:i64], where the interval may span zero. Must be min<max always!

ran_ubits

Get random numbers of various smaller unsigned integer types by specifying the number of bits required,
e.g. ran_ubits(16) as u16, etc.

ran_urange

Generate u64 random number in the interval [min,max]. You can recast the result into some smaller type, when you know that it will fit in.

ranf64

Generate f64 random number in the standardised range [0,1). It can be linearly transformed to any [min,max] range.

ranvf64

Generates vector of size d, of f64 random numbers in [0,1).

ranvf64_xoshi

Generates vector of size d, of f64 random numbers in [0,1). Bit slower but otherwise superior to ranvf64.

ranvi64

Generates vector of size d, of i64 random numbers in the interval [min,max]. May include zero.

ranvu8

Generates vector of size d, of u8 random numbers in [0,255]. You can similarly recast u64 yourself to any other type.

ranvu64

Generates vector of size d, filled with full range u64 random numbers.

ranvvf64

Generates n vectors of size d each, of f64 random numbers in [0,1).

ranvvf64_xoshi

Generates n vectors of size d each, of f64 random numbers in [0,1).

ranvvi64

Generates n vectors of size d each, of i64 random numbers in the interval [min,max].

ranvvu8

Generates n vectors of size d each, of u8 random numbers in the interval [0,255].

ranvvu64

Generates n vectors of size d each, of full range u64 random numbers.

reset_xoshi

Reset xoshi seeds without changing the main SEED. There is usually no need to reset any already running seeds.

set_seeds

Use this function to initialise SEED and also xoshi seeds X0-X3. The supplied value must be > 0, otherwise nothing will be changed.

splitmix

Simple SPLITMIX64 fast generator recommended for generating the initial sequence of seeds. Assumes that SEED has been set and uses it. It can generate any sequence of random u64s. Passes the BigCrush test. Adapted from Sebastiano Vigna, 2015.

xoshif64

Possibly the best f64 generator. Translated and modified from: xoshiro256+1.0 algorithm by David Blackman and Sebastiano Vigna (vigna@acm.org), 2018. Also added conversion to f64 output in the range [0,1)

xoshiu64

Possibly the best full 64 bits generator. Adapted from xoshiro256** 1.0 algorithm by David Blackman and Sebastiano Vigna (vigna@acm.org), 2018.