Frank, The return type of zipn would have to depend on the number of arguments. If you are satisfied with all arguments having the same type, then you can use transpose:
zipn list1 list2 .. listn => transpose [list1, list2, .. listn] Can we make a polyvariadic zipn that returns a [HList]? Seems like a neat challenge, but I'm a bit pressed for time right now. I'm afraid it would be pretty unwieldy. I'm looking forward to seeing solutions though. :-) -- Joel _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
