From: Brad <coish@...>
Date: 2003-12-12T09:22:00+09:00
Subject: Re: Simple issue giving problems

Gennady wrote:

> 
> On Dec 11, 2003, at 14:37, Brad wrote:
> 
> > Hello all,
> >
> > I have a problem that may or may not be an easy fix. :)
> >
> > Given the following:
> >
> >
> > a=1
> > b=2
> >
> > def swapper(dest,src)
> >    dest,src=src,dest
> > end
> 
> 
> If you put it this way:
> 
> a=1
> b=2
> 
> dest=a
> src=b
> 
> dest,src=src,dest
> 
> It swaps dest and src. And I do not think you would expect a and b 
> being swapped as well as a result of this. Same with calling a method 
> as in your example. You cannot deal with variables' addresses in Ruby 
> as in C.
>

True, in the case you present I would not expect a and b to be altered.
But what I was wondering was if there were some way to allow
manipulation of 
> >
> > swapper(a,b)
> > p [ a, b ]
> >
> >
> >
> > Why are the values of the variables not swapped?  Is there
> > a way to coerce ruby into doing a and b by using src and dest?
> >
> > Any help is greatly appreciated.
> >
> > Thanks,
> >
> > Brad
> >
> >
> 
> Sincerely,
> Gennady Bystritsky
> 
> 
> 
>