Proposal: Add an analogue of $! to deepseq

I propose we add a operator - tentatively labelled $!! (and which Hayoo reports isn't currently exported by a Hackage package) - as a deepseq analogue $! to the deepseq library: ($!!) :: (NFData a) => (a -> b) ->a -> b f $!! x = x `deepseq` f x infixr 0 $!! As a sub-proposal, I also propose that we add a "force" function (the name of which also seems to be unused) to make it easier to test forcing of values: force :: (NFData a) => a -> a force x = x `deepseq` x Discussion time: 2 weeks -- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com IvanMiljenovic.wordpress.com