Hello,<br><br>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?
<br><br>i.e.<br><br><div style="margin-left: 40px;"><span style="font-family: courier new,monospace;">data Category = Membership a a a a</span><br></div><br>I'd like to be able to prevent invalid Category data from being created. Any information would be appreciated.
<br><br>-- <br>Rich<br><br>AIM : rnezzy<br>ICQ : 174908475