interface Oberon_Real where from_string :: [Char] -> Oberon_Real {-# ARITY from_string = 0 #-} data Oberon_Real instance Eq Oberon_Real {-# ARITY (==) = 2 #-} {-# ARITY (/=) = 0 #-} instance Text Oberon_Real {-# ARITY readsPrec = 0 #-} {-# ARITY showsPrec = 2 #-} {-# ARITY readList = 0 #-} {-# ARITY showList = 0 #-}