Hi David,

Can't this be done simply by using Data.Ord.Down wrapper for the keys?

Kind regards,
Nick

On Thu, 19 May 2016 at 17:00 David Feuer <david.feuer@gmail.com> wrote:

Data.Map offers functions to convert from ascending lists to maps, and also offers a function to map an increasing function over the keys of a map. Equivalents for descending lists and decreasing functions are missing. I think we should add them. Any objections?

_______________________________________________
Libraries mailing list
Libraries@haskell.org
http://mail.haskell.org/cgi-bin/mailman/listinfo/libraries