> -----Original Message----- > From: Luke Palmer [mailto:[EMAIL PROTECTED] > Sent: Wednesday, August 10, 2005 11:53 AM > To: TSa > Cc: Perl6 Language List > Subject: Re: $object.meta.isa(?) redux > > > A new development in perl 6 land that will make some folks very happy. > There is now a Set role. Among its operations are (including > parentheses): > > (+) Union > (*) Intersection > (-) Difference > (<=) Subset > (<) Proper subset > (>=) Superset > (>) Proper superset > (in) Element > (=) Set equality > > I believe the unicode variants are also allowed. > > And now we're doing away with junctive types in favor of set types.
Will there be an operator for symmetric difference? I nominate (^). Joe Gottman