Haskell Core Libraries (base package) Parent Contents Index

GHC.ST Portability non-portable (GHC Extensions) Stability internal Maintainer cvs-ghc@haskell.org

Description

The ST Monad.

newtype ST s a

Constructors ST (STRep s a) Instances MonadFix (ST s) (Typeable a, Typeable b) => Typeable (ST a b) MArray (STArray s) e (ST s) MArray (STUArray s) Bool (ST s) MArray (STUArray s) Char (ST s) MArray (STUArray s) Int (ST s) MArray (STUArray s) Word (ST s) MArray (STUArray s) (Ptr a) (ST s) MArray (STUArray s) (FunPtr a) (ST s) MArray (STUArray s) Float (ST s) MArray (STUArray s) Double (ST s) MArray (STUArray s) (StablePtr a) (ST s) MArray (STUArray s) Int8 (ST s) MArray (STUArray s) Int16 (ST s) MArray (STUArray s) Int32 (ST s) MArray (STUArray s) Int64 (ST s) MArray (STUArray s) Word8 (ST s) MArray (STUArray s) Word16 (ST s) MArray (STUArray s) Word32 (ST s) MArray (STUArray s) Word64 (ST s) Functor (ST s) Monad (ST s) Show (ST s a)

type STRep s a = State# s -> (#State# s, a#)

data STret s a

Constructors STret (State# s) a

liftST :: ST s a -> State# s -> STret s a

unsafeInterleaveST :: ST s a -> ST s a

fixST :: (a -> ST s a) -> ST s a

runST :: (forall s . ST s a) -> a

runSTRep :: (forall s . STRep s a) -> a

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