From: Dave Aronson <rubytalk2dave@...>
Date: 2011-10-05T00:52:30+09:00
Subject: Re: Operator Overloading

On Tue, Oct 4, 2011 at 10:03, Brian Candler <b.candler@pobox.com> wrote:

> (Of course, 'x' and 'self.x' are the same; you can write 'self.x' if you
> think it's clearer)

Not quite.  This is one of Ruby's little gotchas.  A naked "x" will be
taken as a local variable in the method.  If you want to use an
instance variable you *must* precede it with either "self." or "@".

-Dave

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