From: Brian Candler <B.Candler@...>
Date: 2003-02-18T22:02:15+09:00
Subject: Re: How to test for existence of instance variable?

> B> I want to check whether the instance variable corresponding to that
> B> attribute is already initialised.
>    
>  First test if the instance variable exist.

That was essentially what I was asking. What is the way to check if an
instance variable exists, when its name is dynamic? Preferably not something
incredibly inefficient like

   obj.instance_eval "defined? @#{newmember}"

(since all I'm trying to do is avoid a warning).

Regards,

Brian.