Data.STRef.Freeze

Description of this module goes here.

Documentation

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

Eq (STRef s a)

newSTRef :: MonadST st => a -> STNormal st s (STRef s a)

readSTRef :: MonadST st => STRef s a -> STRead st s a

writeSTRef :: MonadST st => STRef s a -> a -> STNormal st s ()

modifySTRef :: MonadST st => STRef s a -> (a -> a) -> STNormal st s ()