Re: [Rd] Best way to determine if you're running 32 or 64 bit R on windows

From: Martin Maechler <maechler_at_stat.math.ethz.ch>
Date: Fri, 02 Jul 2010 21:09:29 +0000 (UTC)

Jeffrey Horner <jeffrey.horner <at> gmail.com> writes:

> Is this sufficient?
>
> if (.Machine$sizeof.pointer==4){
> cat('32\n')
> } else {
> cat('64\n')
> }
>
> Or is it better to test something in R.version, say os?

No, the above is perfect, as it also works on other platforms to distinguish 32-bit and 64-bit.

Regards, Martin



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