From: Florian Gross <flgr@...>
Date: 2005-01-20T02:01:01+09:00
Subject: Re: value by reference

Mohammad Khan wrote:

> do_something(a, b, c)							# change a, b, c like other objects

Let me give an example:

x, y, z = 1, 2, 3
do_something(x, y, z) # completely equivalent to
do_something(1, 2, 3)

do_something() does not get variables. It gets the values the variables 
refer to. (It gets the objects the variables are names for.)

Therefore it can not change the variables, they are nothing physical.

variable.rb lets you turn variables *themselves* into Objects that can 
be passed to methods.