[OSM-dev] planet.osm

[David Sheldon]

On Sun, Aug 27, 2006 at 07:37:03PM +0100, Nick Burch wrote:
> Does anyone know of a more memory efficient way to do a hashset in perl? 
> I'm currently using a normal perl hash, but all we really need to be able 
> to do is add ids to a hashset, and check if they're there.

How about: 
 http://www.cpan.org/modules/by-module/Bit/Bit-Vector-6.4.readme

 David

-- 
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