7 Jul
2011
7 Jul
'11
12:34 p.m.
On 01/07/2011 08:55, Ivan Lazar Miljenovic wrote:
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 $!!
+1
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
Yes, this is what I called "deep" in my parallelism tutorial [1], but "force" is a better name. If it goes in, I'll update the tutorial. Cheers, Simon [1] http://community.haskell.org/~simonmar/par-tutorial.pdf