From: Peter Hickman <peter@...>
Date: 2002-05-03T19:50:44+09:00
Subject: IDs of the reference

With the following code

class Fred
end

a = Fred.new
b = a

puts a.id
puts b.id

both a and b return the same id (as expected).
I realise that a and b both refer to the same object and thus have the 
same id, this is not a problem. What I would like is the id of the 
reference so that I can tell that  ref a although pointing to the same 
object as ref b is not infact the same ref.

Is this possible?