Moduletf-random-0.5Haskell98

System.Random.TF

This module exports System.Random.TF.Gen and System.Random.TF.Init modules without exporting the alternative RandomGen class from System.Random.TF.Gen. To use this class and the Random instances written for it, please import System.Random.TF.Gen and System.Random.TF.Instances directly.

1 type
5 values

Packagetf-random-0.5
Exports6
LanguageHaskell98
LicenceBSD-3-Clause
SourceTF.hs

valueseedTFGen :: (Word64, Word64, Word64, Word64) -> TFGen

Create a generator from a random seed.

datadata TFGen

The generator type

Instances4Read, Show, RandomGen

Read TFGenDefined in tf-random-0.5 · System.Random.TF.Gen
Show TFGenDefined in tf-random-0.5 · System.Random.TF.Gen
RandomGen TFGenDefined in tf-random-0.5 · System.Random.TF.Gen
RandomGen TFGenDefined in tf-random-0.5 · System.Random.TF.Gen

valuemkSeedTime :: IO (Word64, Word64, Word64, Word64)

Use system time create the random seed. This method of seeding may not be relible.

valuemkSeedUnix :: IO (Word64, Word64, Word64, Word64)

Use the UNIX special file /dev/urandom to create the seed. Inspired by random-mwc.

valuemkTFGen :: Int -> TFGen

Quick and dirty way of creating a deterministically seeded generator.

valuenewTFGen :: IO TFGen

Derive a new generator instance from the global RNG using split. This is the default way of obtaining a new RNG instance. Initial generator is seeded using mkSeedUnix on UNIX, and mkSeedTime otherwise. This should be eventually replaced with proper seeding.