Haskell Hierarchical Libraries (base package)Source codeContentsIndex
Data.STRef.Lazy
Portabilitynon-portable (uses Control.Monad.ST.Lazy)
Stabilityexperimental
Maintainerlibraries@haskell.org
Contents
STRefs
Description
Mutable references in the lazy ST monad.
Synopsis
data STRef s a
newSTRef :: a -> ST s (STRef s a)
readSTRef :: STRef s a -> ST s a
writeSTRef :: STRef s a -> a -> ST s ()
modifySTRef :: STRef s a -> (a -> a) -> ST s ()
STRefs
data STRef s a
a value of type STRef s a is a mutable variable in state thread s, containing a value of type a
show/hide Instances
newSTRef :: a -> ST s (STRef s a)
readSTRef :: STRef s a -> ST s a
writeSTRef :: STRef s a -> a -> ST s ()
modifySTRef :: STRef s a -> (a -> a) -> ST s ()
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