26 Jan
2004
26 Jan
'04
5:31 p.m.
Thomas Hallgren
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)
Yes, but (Either b a) won't give me the input _together_ with the output, will it? I need a fudget that accepts some input, does some work on it, and outputs the result _and_ the original input for further processing by other fudgets. As far as I can see, this means I need a tupple (a, b), and not the disjoint sum (Either a b). -- Henrik