Hi, When writing IO version, I wasn't aware of other twister versions, and the only reason is/was that it was easiest to me and that I knew (believed) that plain lists would have been inefficient. I just wanted to see and learn, how close to C version this can be made. (And still do.) There were some good suggestions on this thread - next I'll try to get grasp on how to apply the suggestions and do something... br, Isto ke, 2006-11-01 kello 22:04 -0500, Lennart Augustsson kirjoitti:
The whole point of writing the Mersenne Twister was that I wanted to show how a stateful computation could be encapsulated in the ST monad and none of it showing up outside. This aspect of the code is totally gone now when everything is in the IO monad. Is there some good reason to have it in the IO monad?