Util.IOExtras

Little functions connected with IO

Documentation

catchEOF :: IO a -> IO (Maybe a)

catchAlreadyExists :: IO a -> IO (Maybe a)

catchDoesNotExist :: IO a -> IO (Maybe a)

catchErrorCalls :: IO a -> IO (Either ErrorCall a)

hGetLineR :: Read a => Handle -> IO a

simpleModifyIORef :: IORef a -> (a -> (a, b)) -> IO b