[containers] Proposal: Change to the Data.Map Monoid

[Edward Kmett]

I find myself rather hesitant to recommend that instantiation of the idea
ever since it exploded into a half-dozen packages full of orphan instances,
but yes.

-Edward


On Wed, May 21, 2014 at 6:38 AM, Herbert Valerio Riedel <hvr at gnu.org> wrote:

> On 2014-05-21 at 00:23:44 +0200, Andreas Abel wrote:
> >>> _Lots_ of users initialize empty maps with mempty
> >
> > Well, this is another issue, empty should be overloaded via
> >
> > class Empty a where
> >   empty :: a
>
> Btw, isn't this what
>
>   http://hackage.haskell.org/package/data-default
>
> provides?
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