How to use MonadPlus class?

Wang Meng wangmeng@comp.nus.edu.sg
Sun, 11 May 2003 02:47:02 +0800 (GMT-8) 

Hi All,

I am trying to declare an instance of MonadPlus class. However, both GHC
and Hugs complaint MonadPlus class is not defined.

Anyone here has experience with it? What package do I need to import?

Thanks.


 -W-M-
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