On Sat, Aug 11, 2012 at 12:01 PM, Antoine Latter <aslatter@gmail.com> wrote:

It should be pretty easy to write an adapter function of type "String -> (Show a => a)".


Not with that type.  Give it a try.

Hint:  what is the extension of the type variable 'a'?  What do you know about it?  How would you use that to write the function?