Re: [Haskell-cafe] random question

On Wed, Oct 7, 2009 at 2:28 PM, Michael Mossey wrote:

I don't quite follow your response. I want a program that initializes the generator from the global generator because I want different behavior every time I run it. So it will need IO. That's what I was trying to demonstrate. And I was wondering if one can get around the difficulty of passing the generator from call to call by using newStdGen in this way.

You should only have to call newStdGen once: main = do g <- newStdGen let (g1,g2) = split g let xs = [1..10] print $ shuffle g1 xs print $ shuffle g2 xs