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{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE RebindableSyntax #-}
import Prelude
class IfThenElse a b where
ifThenElse :: a -> b -> b -> b
instance IfThenElse Bool b where
ifThenElse c x y = if c then x else y
data Foo = Foo | Bar | Baz deriving (Eq, Ord)
main :: IO ()
main = print $ Foo < Bar
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