Data.Map/Data.IntMap additional features

[Sterling Clover]

On Tue, Nov 3, 2009 at 3:39 PM, Louis Wasserman
<wasserman.louis at gmail.com> wrote:
> 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.