(oh, this might fail if we were to get a 128bit world, I suppose :) On Sat, Oct 29, 2011 at 9:31 AM, Robby Findler <ro...@eecs.northwestern.edu> wrote: > Another not so great way, in Racket, to tell if the current racket is > built as a 64 bit or 32 bit executable (is that what you're wanting?) > > ;; 64bit? : -> boolean > (define (64bit?) (eq? (expt 2 61) (expt 2 61))) > > I don't know if this is promised to always work going forwards, but it > is hard for me to imagine a future where it doesn't work. > > Of course, it would be better if there were some documented API that > would make this definitive, but until then you're probably safe with > this. > > Robby >
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