Re: [Haskell-cafe] Re: How to do this in FP way?

On 16 Jun 2008, at 18:28, Achim Schneider wrote:

Thomas Davie wrote:

...

...

One half of all Haskell coders will tell you that mutable state isn't a good starting point to learn Haskell, the other half will tell you the same because they want to be cool kids, too.

And the one left over will point out that he asked how to do this the FP way, not the imperative way?

There's no difference, as you can't do time-accounting non-strict and still expect it to give meaningful results: I'm merely trying to be helpful. None of the other solutions allow for the IO Monad.

Firstly, I'd phrase that differently -- the IO Monad doesn't allow for the other solutions -- the other solutions are the truly functional ones. Secondly, I'm curious as to why you think that the two are incompatible, are you saying that for any meaningful kind of computation we need to resort to IORefs? I'd strongly contest that idea. Bob