3 Nov
2006
3 Nov
'06
5:24 a.m.
Hello Slavomir, Thursday, November 2, 2006, 5:47:37 PM, you wrote:
class Show a => Visible a where toString :: a -> String toString = show size :: a -> Int size = length . show
it's not that you need. it's definition of subclass, say class Set a => OrderedSet a -- Best regards, Bulat mailto:Bulat.Ziganshin@gmail.com