From: Xavier Noria <fxn@...>
Date: 2010-11-12T16:32:44+09:00
Subject: Re: what's an object?

On Friday, November 12, 2010, zuerrong <zuerrong@gmail.com> wrote:

> Hi Brian,
>
> I just tested what you said, the result is opposite, a is changed.

Point is a holds a reference, and that one can't be changed. You can
change the state of the object it points to if it is mutable, but the
string object is the same when the method returns because Ruby has
pass by value semantics.

I wrote a post about this a while back:

     Ruby, C, and Java are pass-by-value, Perl is pass-by-reference
     http://advogato.org/person/fxn/diary/534.html

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