Re: [Haskell-beginners] function defenition. Do I understand it right?

Hi, On 12 July 2011 16:15, Brent Yorgey wrote:

This message is just because it cannot figure out the type of [] in 'putStrLn $ show $ halve []'. You can write

putStrLn $ show $ halve ([] :: [Int])

to give it an explicit type. It's a bit annoying since we happen to know that the type of the list makes no difference, but the compiler can't figure that out.

Actually, the type of the list does make a difference due to different show instances. Try: putStrLn $ show $ halve ([] :: [Char]) Cheers, Ozgur