29 Jun
2011
29 Jun
'11
3:42 p.m.
You can store IORef / MVar / whatever in the environment. The counter is supposed to be global, so it should work for multiple threads. Best regards, Krzysztof Skrzętnicki On Wed, Jun 29, 2011 at 17:27, Christopher Done <chrisdone@googlemail.com>wrote:
On 29 June 2011 17:22, Michael Xavier <nemesisdesign@gmail.com> wrote:
I tend to use Control.Monad.Reader for stateful stuff like this. It is found in the mtl package http://hackage.haskell.org/package/mtl-2.0.1.0
How would you use reader for a counter?
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