From: "Mauricio Fernández" <batsman.geo@...>
Date: 2002-12-03T17:31:00+09:00
Subject: Re: call-by-reference problem again

On Tue, Dec 03, 2002 at 08:18:39AM +0900, Shannon Fang wrote:
> Hi,
> 
> I modified my code, I'm afraid that I can't find it. It is like the
> following:
> 
> class MailInfo
>   def initialize
>     @path=@recipients=@from=Array.new
>     ...
>   end
>   def parse
>          case header
> 	when "TO", "CC", "BCC"
> 		@recipients << header
> 	when "RECEIVED"
> 		@path << header
>          end
>   end
>   ...
> end
> 
> in the above code, the arrays will interfere with each other. The way to
> solve it is not to use chained assignment.

Yes, because they are all the same array :)
But why is it any different from String(s)?

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