From: "Iñaki Baz Castillo" <ibc@...>
Date: 2010-01-15T18:32:22+09:00
Subject: Re: How to know the OS architecture (32 or 64 bits)?

El Viernes, 15 de Enero de 2010, Rob Biedenharn escribió:
> On Jan 14, 2010, at 6:12 PM, Iñaki Baz Castillo wrote:
> > Hi, is there a reliable way under Ruby to know the OS architecture
> > (32 or 64
> > bits)?
> >
> > I've just found RUBY_PLATFORM constant which returns "x86_64-linux"
> > under 64
> > bits, however it doesn't send very reliable for me.
> >
> > I need a way working under Linux and BSD. Thanks for any suggestion.
> 
> You can use Fixnum#size to get number of bytes for a Fixnum and
> multiply by 8 bits/byte:
> 
> irb(main):001:0> 1.size * 8
> => 64
> irb(main):002:0> RUBY_PLATFORM
> => "x86_64-linux"
> 
> irb> 1.size * 8
> => 32
> irb> RUBY_PLATFORM
> => "universal-darwin9.0"

It's really good!
Thanks a lot.


-- 
Iñaki Baz Castillo <ibc@aliax.net>