From: Justin Collins <justincollins@...>
Date: 2012-05-24T00:55:34+09:00
Subject: Re: Memory-efficient set of Fixnums

On 05/23/2012 06:17 AM, Chris Hulan wrote:
> Did you try a Hash?

Set uses a Hash internally. It's basically just a different interface to 
a Hash.

-Justin