Ooops I thought the inner lists are possibly of infinite size.
On 17 February 2010 17:16, Daniel Fischer
Am Mittwoch 17 Februar 2010 17:46:38 schrieb Ozgur Akgun:
The easiest solution is simply to define
unionAll = nub . mergeAll where -- specialized definition of nub nub = map head . groupBy (==)
Talking about the easiest solution, I guess this is a quite easy way of defining unionAll as well: http://gist.github.com/306782 I, of course, do not claim that it is more efficient or better. But I don't think it'd be rubbish :)
let next = minimum (map head xs')
doesn't work if you have infinitely many lists :( _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
-- Ozgur Akgun