I've looked through the two tutorials and the Report, but couldn't find help on this topic. My question is whether you can place constraints on new data types. For instance, I want to make a new type that is a 4 element tuple where each element is greater than or equal to the previous entry. Is this possible?
i.e.
data Category = Membership a a a a
I'd like to be able to prevent invalid Category data from being created. Any information would be appreciated.
--
Rich
AIM : rnezzy
ICQ : 174908475
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