6 Nov
2007
6 Nov
'07
10:15 p.m.
On 6 Nov 2007, at 3:56 PM, Yitzchak Gale wrote:
I wrote:
There is still a problem here - my code (and also all of the previous posters, I think) clobbers the random generator, rendering it unusable for future calculations. In this case that is probably not a problem, but it is a bad habit to get into, and not very polite.
Jonathan Cast wrote:
Nope. newStdGen is specified in terms of split, which means it leaves the random generator in a state independent of the generator it returns. Perfectly safe. (I think you think you used getStdGen).
I was referring to randoms and randomRs. They clobber the generator. You can then get a new one using newStdGen, but that forces you back into the IO monad.
Oh, of course. Or call split first. jcc