[Haskell-cafe] Generalized null / zero
Alvaro J. Genial
genial at alva.ro
Thu Feb 6 09:17:14 UTC 2014
On Sat, Feb 1, 2014 at 12:08 PM, Mario Blažević <blamario at acanac.net> wrote:
> On 01/28/14 21:25, Alvaro J. Genial wrote:
>> 1. Is there a more general version of `null`? (e.g. for a Monad, Functor,
>> Applicative, Traversable or the like.)
> There is the MonoidNull class from my monoid-subclasses library. It comes
> with plenty of standard instances.
This is very nice as it seems to mesh with my current thinking; I may end
up using it in Neat  shortly.
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