On Sun, 4 Jul 2010 15:47:21 +0200, Ertugrul Soeylemez <e...@ertes.de> wrote: > This requires a bunch of type system extensions, though, most notably > the UndecidableInstances extension. But it's safe to use here.
Probably a bit off topic, but whats wrong with UndecidableInstances? Where is it safe to use, when would you avoid it and what can go wrong here? _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
