From: Bulat Ziganshin <bulatz@...>
Date: 2002-11-28T16:10:33+09:00
Subject: Re: call-by-reference problem again

Hello Shannon,

Thursday, November 28, 2002, 12:54:37 AM, you wrote:
SF> a=b=c=Array.new
SF> d=e=f=""

SF> In my program, if I modify a, b and c will be affected, in another word,
SF> a, b, c point to the same Array. while I modify d, e and f are not
SF> affected, which means, strings are assigned by value... what will happen
SF> if I write d=e=f=String.new?

it's because you use self-modifying methods in one case and create new
objects in another. try this code :)

 a=b=c=Array.new
 d=e=f=""

 a += [1]
 d << "a"

-- 
Best regards,
 Bulat                            mailto:bulatz@integ.ru