[Haskell-cafe] Re: Simple Fudgets-question

Henrik Berg wrote:

Hi!

I can't find any function in the Fudgets-library to do this:

(F a b) -> (F a (a, b))

... All I want to do is to resend the input out on the output.

If that is all you want, this combinator is the right choice: throughF :: F a b -> F a (Either b a) -- Thomas H