From: RichardOnRails <RichardDummyMailbox58407@...>
Date: 2008-07-20T12:39:46+09:00
Subject: Simple program with a simple(?) error -- what's wrong?

Hi,

I put together to exercise simple Ruby constructs.  It's posted at
http://www.pastie.org/237288.

Before I introduced the "indx" variable it worked fine.  The statement
incrementing indx in the def causes the error:
undefined method `+' for nil:NilClass (NoMethodError)

I'm running:
ruby 1.8.6 (2007-09-24 patchlevel 111) [i386-mswin32]

Why doesn't the def use the instance of indx defined before the def?

Thanks in Advance,
Richard