MonadRandom-0.1.1: Random-number generation monad.Source codeContentsIndex
Control.Monad.Random.Class
Portabilitynon-portable (multi-parameter type classes, undecidable instances)
Stabilityexperimental
Description

A type class for random number generation monads. See http://www.haskell.org/haskellwiki/NewMonads/MonadRandom for the original version of this code.

Instances of this type class include Control.Monad.Random.Rand and monads created using Control.Monad.Random.RandT.

Synopsis
class Monad m => MonadRandom m where
getRandom :: Random a => m a
getRandoms :: Random a => m [a]
getRandomR :: Random a => (a, a) -> m a
getRandomRs :: Random a => (a, a) -> m [a]
getRandom :: (MonadRandom m, Random a) => m a
getRandomR :: (MonadRandom m, Random a) => (a, a) -> m a
getRandoms :: (MonadRandom m, Random a) => m [a]
getRandomRs :: (MonadRandom m, Random a) => (a, a) -> m [a]
Documentation
class Monad m => MonadRandom m whereSource
An interface to random number generation monads.
Methods
getRandom :: Random a => m aSource
Return a randomly-selected value of type a. See random for details.
getRandoms :: Random a => m [a]Source
Return an infinite stream of random values of type a. See randoms for details.
getRandomR :: Random a => (a, a) -> m aSource
Return a randomly-selected value of type a in the range (lo,hi). See randomR for details.
getRandomRs :: Random a => (a, a) -> m [a]Source
Return an infinite stream of randomly-selected value of type a in the range (lo,hi). See randomRs for details.
show/hide Instances
getRandom :: (MonadRandom m, Random a) => m aSource
Return a randomly-selected value of type a. See random for details.
getRandomR :: (MonadRandom m, Random a) => (a, a) -> m aSource
Return a randomly-selected value of type a in the range (lo,hi). See randomR for details.
getRandoms :: (MonadRandom m, Random a) => m [a]Source
Return an infinite stream of random values of type a. See randoms for details.
getRandomRs :: (MonadRandom m, Random a) => (a, a) -> m [a]Source
Return an infinite stream of randomly-selected value of type a in the range (lo,hi). See randomRs for details.
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