Enum-0.2.0.0: Non-crashing `Enum` operations
Enum
toEnumMay :: Enum a => Integer -> Maybe a Source #
fromEnum :: Enum a => a -> Integer Source #
predMay :: Enum a => a -> Maybe a Source #
succMay :: Enum a => a -> Maybe a Source #
compareEnum :: Enum a => a -> a -> Ordering Source #