ekmett/data-lens-fd — pull request #1 by bovinespirit (2011-12-17 16:05:37+00:00)
Title: A patch to add some blah_ style functions that return ().

I was using data-lens-fd and found these functions reduced warnings and boilerplate code, so I thought they may be useful to others too. Sadly GHC doesn't appear to accept ~=_, so I've used a $ prefix instead. Any better suggestions would be gratefully recieved.

New functions are: ($~=), ($!=), ($%=), ($!%=).