From: Marnen Laibow-Koser <marnen@...>
Date: 2009-11-19T23:31:51+09:00
Subject: Re: dynamic array?

Freak Guard wrote:
>> So reopen, extend, or subclass Array to get the desired behavior. 
>> What's the problem?
> 
> class DefaultArray < Array
> 
>   attr_accessor :default_value
> 
>   def initialize
>     super
>     @default_value = nil
>   end
> 
>   def [](idx)
>     super || @default_value
>   end
> end
> 
> ... and writing all the iterators I need which will be dead slow I 
> assume :/

I'm not sure you'll need to rewrite the iterators.  You may need to 
store length separately, though, since counting the elements won't do 
the trick.

> 
> Greetings
> FreakGuard


Best,
--
Marnen Laibow-Koser
http://www.marnen.org
marnen@marnen.org
-- 
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