From: RichardOnRails <RichardDummyMailbox58407@...>
Date: 2009-12-22T07:15:14+09:00
Subject: Re: Ruby's implementation of Fixnum-assignment

On Dec 21, 3:55 pm, Marnen Laibow-Koser <mar...@marnen.org> wrote:
> RichardOnRails wrote:
> > On Dec 21, 12:26 pm, Robert Klemme <shortcut...@googlemail.com> wrote:
> >> > 3. Object_id's of Bignum's close to the boundaries of Fixnum's bear no
> >> > value, left shift it with "1" padding, and make that current
> >> instance variable like "@a") has an object id. Object id is a
> >> treatment for assignments necessary. Rather, it makes special
>
> >> robert
>
> >> --
> >> remember.guy do |as, often| as.you_can - without endhttp://blog.rubybestpractices.com/
>
> > Hi Robert,
>
> >> No variable ... has an object id.
>
> > Robert,  I know, by virtue of reading a number of your responses in
> > this NG, that you re a Ruby expert.  But the statement referenced
> > above is contradicted by at least two authorities on Ruby:
> > 1. ... every object has a unique object identifier
>
> Right.  The *object* has an object_id.  The *variable* that contains it
> does not.  The difference is subtle but important.
>
> a = @foo
> b = @foo
>
> a and b hold references to the same object, but they are not the same
> variable.  If you do
> a = @bar
> then b is unaffected.
>
> Best,
> --
> Marnen Laibow-Koserhttp://www.marnen.org
> mar...@marnen.org
> --
> Posted viahttp://www.ruby-forum.com/.

Hi Marnen,

Thanks for that confirmation.

Best wishes,
Richard