30 May
2013
30 May
'13
9:34 p.m.
On Thu, May 30, 2013 at 01:12:00PM -0700, Shachaf Ben-Kiki wrote:
This instance should exist. There's been a couple of discussion on libraries@ before. One of them is at http://www.haskell.org/pipermail/libraries/2012-July/018246.html.
The previous one was in January 2011: http://thread.gmane.org/gmane.comp.lang.haskell.libraries/15196 I've taken the liberty of pushing the previously discussed Foldable and Traversable instances for Either a and (,) a.