From: "Stephan Kämper" <Stephan.Kaemper@...>
Date: 2004-04-22T06:59:10+09:00
Subject: Re: Creating bang methods

Jon Hurst wrote:
> On reflection, perhaps I have not been clear enough. I would like to create
> bang methods of some math functions (mostly abs), but I don't know how to
> modify the reciever in place because the value of self cannot be changed.
> It's not really important that I be able to write these bang methods, but I
> would very much like to understand how one would do it.
> 
> Class Numeric
>     def abs!
>         ??
>     end
> end
> 

Even if you had a way to implement some bang-abs, what would you expect 
-4.abs! to be?


Happy rubying

Stephan