From: Austin Ziegler <halostatue@...>
Date: 2006-11-01T23:53:21+09:00
Subject: Re: variable pointer

On 11/1/06, akbarhome <akbarhome@gmail.com> wrote:
> @c = "donal"
> @b = @c
>
> abrakadabra(@b, @c)
>
> @c = "mickey"
>
> print @b resulted "mickey"
>
> Is there something like abrakadabra method in ruby? The only thing I
> can think to emulate this is using global variable.

No. Variables aren't pointers or locations; they're labels for
objects. By changing @c you have changed its object. You haven't
changed @c.

However, you can trick it out with a Var (or Ref) object (google
around for various implementations) where you can set the value,
something like:

c = Ref.new("donald")
b = c
c._value = "mickey"
puts b

-austin
-- 
Austin Ziegler * halostatue@gmail.com * http://www.halostatue.ca/
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