3 Nov
2009
3 Nov
'09
7:23 p.m.
On Tue, Nov 3, 2009 at 3:39 PM, Louis Wasserman
Using MonadPlus or Alternative instances for First and Last are rather elegant here, and I strongly support adding their Applicative, Alternative, Monad, and MonadPlus instances to base.
+1 for this. I've had to do it myself more than once. Also the functor instance. --S.