9 Feb
2006
9 Feb
'06
4:48 a.m.
Hello Simon, Thursday, February 09, 2006, 11:19:00 AM, you wrote: SPJ> | deriving Bin for (,,,,,,,,,,,,,,,,,,,,) SPJ> Yes -- a couple of times I've nearly gotten down to implementing this. it is a real and well-known problem - that, for example, user of library can't derive "Show" or "Eq" instance for datatypes defined in this library. on the other side, usual "derivibg" clauses should be able to use generic definitions, such as this for Binary class -- Best regards, Bulat mailto:bulatz@HotPOP.com