From: Roger Pack Date: 2010-01-16T05:28:06+09:00 Subject: Re: How to know the OS architecture (32 or 64 bits)? > My main concern with that though: > Would RbConfig::CONFIG['host_cpu'] return "x86_64" if I'm running 32-bit > Linux on a 64-bit CPU? At least within a 32-bit OS (in a VM) it appears to be i686-linux so I think we're safe there. Also, thanks for the hint on 1.size I didn't know that one--it's integrated now [v 0.6.1]. That wouldn't work for jruby (which always returns 8), but should work fine for MRI, and I think we handle jruby ok. I also added a .mac? method--if anybody on a mac could try it out [and/or tell me what the RUBY_PLATFORM is for OS X and OS X 64 bit] then I could actually test it. Re: OS.bits on a 32 within a 64...anybody know how you can tell that you're on 64 bit running a 32 bit ruby, on windows [or linux]? Thanks. -r -- Posted via http://www.ruby-forum.com/.