-- | Atomically modifies the configuration state in the WConfdMonad
-- with a computation that can possibly fail.
modifyConfigStateErr_
  :: (TempResState -> ConfigState -> AtomicModifyMonad ConfigState)
  -> WConfdMonad ()
modifyConfigStateErr_ f = modifyConfigStateErr ((liftM ((,) ()) .) . f)
modifyConfigStateErr_
  :: (TempResState -> ConfigState -> AtomicModifyMonad ConfigState)
  -> WConfdMonad ()
modifyConfigStateErr_ f = modifyConfigStateErr ((liftM ((,) ()) .) . f)
modifyConfigStateErr_ f = modifyConfigStateErr ((liftM ((,) ()) .) . f)