On 17/01/2011 13:04, Ketil Malde wrote: >> So other PERSONs would have different types, say:
I think the problem is there is just one constant p1 in the class and there needs to be multiple constants in the implementation (one for each person). It seems difficult to specify this using type classes So, some data declaration as you suggest will probably be needed. Thanks, Pat This message has been scanned for content and viruses by the DIT Information Services E-Mail Scanning Service, and is believed to be clean. http://www.dit.ie _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
