Random.MWC.Primitive

This module contains the raw random number generator algorithm. Usually you would import Random.MWC.Pure for a more convinient API.

Random seed

data Seed

An immutable random seed value for the PRNG.

Instances

Eq Seed

Ord Seed

seed :: [Word32] -> Seed

Create a new random seed value from the supplied list of Word32 values. If the list is empty, return a default, hard-coded value. Otherwise, every element of the list affects the result. The list must be finite; the function will loop forever othewise.

Random number generation

next_word :: Seed -> (Word32, Seed)

Given an initial Seed value, return a random Word32 and a new Seed value.

The Word32 value is chosen psuedo-randomly (i.e., the same Seed is guaranteed to always yield the same choice) with uniform distribution (i.e., all possibilities equally likely) over the complete range from 0x00000000 to 0xFFFFFFFF inclusive.