If I understand correctly, this works because IO is an instance of
Applicative, correct?
I wonder if any of the random monads are instances of Applicative.
Felipe Lessa wrote:
On Sun, Oct 04, 2009 at 01:55:11PM +0400, Eugene Kirpichov wrote:
[x,y,t,b,l,r] <- mapM (getStdRandom . randomR) [(-10,10), (-70,70), ...]
return (BoxBounds ...)
import Control.Applicative
let f = getStdRandom . randomR
g1 = \x -> f (-x,x)
g2 = f (5,10)
in BoxBounds <$> g1 10 <*> g1 70 <*> g2 <*> g2 <*> g2 <*> g2
--
Felipe.
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