From: Ralph Shnelvar <ralphs@...32.com>
Date: 2009-11-11T00:13:23+09:00
Subject: Re: Good or best way to allocate a large array

Florian,

FG> The thing is that an Array of size (300_000*20) already has as many
FG> slots for references. So it's not "initializing references". It just
FG> makes every field of the Array referencing that one BigNum. There is
FG> no allocation or initialization happening in this step.

There has to be initialization, doesn't there?

irb(main):001:0> a=Array.new(10)
=> [nil, nil, nil, nil, nil, nil, nil, nil, nil, nil]
irb(main):002:0> a[5]
=> nil


-- 
Best regards,
 Ralph                            mailto:ralphs@dos32.com