From: "David A. Black" <dblack@...>
Date: 2005-01-20T00:19:13+09:00
Subject: Re: value by reference

Hi --

On Thu, 20 Jan 2005, Michel Martens wrote:

> It's easy to accomplish this task with strings:
>
> def do_something(a, b, c)
>   a.replace((a.to_i + 1).to_s)
>   b.replace((b.to_i + 2).to_s)
>   c.replace((c.to_i + 3).to_s)
> end
>
> a, b, c = '5', '6', '7'
> do_something(a, b, c)
>
> It would be nice to have a replace method for every object, then we could write:
>
> def do_something(a, b, c)
>   a.replace(a + 1)
>   b.replace(b + 2)
>   c.replace(c + 3)
> end
>
> a, b, c = 5, 6, 7
> do_something(a, b, c)

What would you replace 5 with? :-)

(Remember, you're sending the 'replace' method to an *object*, not an
identifier.)


David

-- 
David A. Black
dblack@wobblini.net