Haskell Core Libraries (base package)ParentContentsIndex
Data.STRef.Lazy
Portability non-portable (requires non-portable module ST)
Stability experimental
Maintainer libraries@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
Instances
(Typeable a, Typeable b) => Typeable (STRef a b)
Eq (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 ()
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