Test.QuickCheck.Random

A wrapper around the system random number generator. Internal QuickCheck module.

Documentation

newTheGen :: IO TFGen

bits :: Integral a => a

mask :: Integral a => a

doneBit :: Integral a => a

chip :: Bool -> Word32 -> TFGen -> TFGen

chop :: Integer -> Integer

stop :: Integral a => a -> Bool

mkTheGen :: Int -> TFGen

newtype QCGen

The "standard" QuickCheck random number generator. A wrapper around either TFGen on GHC, or StdGen on other Haskell systems.

Constructors

QCGen TFGen

Instances

Read QCGen

Methods

readsPrec :: Int -> ReadS QCGen

readList :: ReadS [QCGen]

readPrec :: ReadPrec QCGen

readListPrec :: ReadPrec [QCGen]

Show QCGen

Methods

showsPrec :: Int -> QCGen -> ShowS

show :: QCGen -> String

showList :: [QCGen] -> ShowS

RandomGen QCGen

Methods

next :: QCGen -> (Int, QCGen)

genRange :: QCGen -> (Int, Int)

split :: QCGen -> (QCGen, QCGen)

Arbitrary QCGen

Methods

arbitrary :: Gen QCGen

shrink :: QCGen -> [QCGen]

newQCGen :: IO QCGen

mkQCGen :: Int -> QCGen

bigNatVariant :: Integer -> TFGen -> TFGen

natVariant :: Integral a => a -> TFGen -> TFGen

variantTheGen :: Integral a => a -> TFGen -> TFGen

boolVariant :: Bool -> TFGen -> TFGen

variantQCGen :: Integral a => a -> QCGen -> QCGen