From: Simon Strandgaard <0bz63fz3m1qt3001@...>
Date: 2003-06-28T00:48:31+09:00
Subject: Re: Using & for arrays of objects

On Fri, 27 Jun 2003 18:07:39 +0200, Robert Klemme wrote:
> 
> No, I'm sorry, but I think in this case you're just plain wrong. :-)  I
> don't think the class needs a method & because array intersection
> (Array#&) is defined as returning a single array that contains only
> elements in self and the argument array.  Thus elements need only be
> comparable or similar.  

OK.. I wasn't aware that Ruby does the job for you (for free) :-)


I was thinking:  The intersection between two Trivial instances should not
return an array.. instead it should return an instance of Trivial
containing the result array... like this:

  def &(anOther)
    Trivial.new(@n & anOther.n)
  end

--
Simon Strandgaard