Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Tue, 28 Jun 2011 12:45:27 -0500

Me again,

On 2011-06-28 I wrote:
> 
> Oh, and one more reason: The regular darwin i386 class is LP64 anyway,
>  meaning longs and pointers are 64-bits wide even when ARCH_CLASS is i386. 

Sorry, I lied about that.  On my test machine running in 32-bit mode, unless I 
explicitly tell it to build for -arch i386 gcc generates a 64-bit executable, 
which the 32-bit MacOS X kernel is perfectly happy to run.

If I specify -arch i386 for gcc, my program does print 32.

- Andrew
-- 
Optimization is the process of taking something that works and
replacing it with something that almost works, but costs less.
-- Roger Needham

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System