>> As far as I know, the reason for this is that the UIO instance for >> productions writes the two "rows" out sequentially to file, but >> doesn't include any means to determine the length of the two halves >> when it's loading up again. When you try to read the production back >> in, it tries to read in two arrays, but the first array read consumes >> all the input leaving the second with nothing. >> > > Ok, thanks. > > For now, I think that the simple solution is to not use UArr (a:*:b), but > (UArr a, UArr b). Just newtype your own UIO instance, if you need a different instance...
-- Don _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
