Thomas Hallgren <[EMAIL PROTECTED]> writes: > 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 _______________________________________________ Haskell-Cafe mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell-cafe
