From: Tomasz Wrobel <tomekwr@...>
Date: 2010-08-06T17:57:23+09:00
Subject: lt operator on class object, checking a class' superclasses

Hi!

Do you know a good way to check whether a class is a subclass of a
certain class (given the class object, not an instance)?

one way would be to check all of klass.superclass,
klass.superclass.superclass till nil

or klass.new.is_a?( cklass )

Accidentaly, I tried to such a operation:

klass < cklass

and it seems to work, but doesn't seem to be documented
can somebody acknowledge this?

Best regards,
Tomek W
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