Re: [Haskell-beginners] Global variables

Michael Snoyman wrote:

Though in this case, you can go with the cheaper IORef, since (presumably) the only operation is going to be incrementing the counter. Just be sure to use atomicModifyIORef[1].

I never recommend (or mention for that matter) IORefs in the beginner list. Also I think than an atomically modified IORef is not necessarily faster. TVars are optimized for that kind of operation. Greets, Ertugrul -- nightmare = unsafePerformIO (getWrongWife >>= sex) http://ertes.de/