Functor, Applicative, Monad, Foldable, Traversable instances for (, , ) a b

Fri Mar 31 14:34:31 UTC 2017

On Thu, Mar 30, 2017 at 10:47 PM Bryan Richter <b at chreekat.net> wrote:

> I just don't know why pairs ever got to Functor. I fear this was an
> ancient decision... no?
>

If you're curious, this happened over 10 years ago:

http://git.haskell.org/ghc.git/commitdiff/209bf03ac7949c9bcf677561a2b1360b158e3b22
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