Missing Traversable instances

Edward Kmett ekmett at gmail.com
Fri Oct 11 23:15:11 UTC 2013


You're all set. We've had it inside HEAD for a couple of months.

instance Traversable (Either a) -- Defined in ‛Data.Traversable’

-Edward



On Fri, Sep 27, 2013 at 1:55 PM, hsyl20 . <hsyl20 at gmail.com> wrote:

> Hi,
>
> I would like to use a Traversable instance for "Either e". I have read it
> is a recurrent demand [1][2] to integrate it in base. Could we do it for
> the next release?
>
> Thanks
> Sylvain
>
> [1]
> http://haskell.1045720.n5.nabble.com/Proposal-Add-the-missing-instances-for-Traversable-Either-b-and-Traversable-b-td5715398.html
>
> [2] http://osdir.com/ml/libraries@haskell.org/2011-01/msg00325.html
>
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