Ken Treis wrote: > On Sep 16, 2009, at 12:02 PM, Douglas Brebner wrote: > > >> One minor point is that whether integers and longs are different >> depends >> on the platforms data model. Under MS Win64, integers and long >> integers >> are both 32bit, while on most unixes integers are 32bit while long >> ints >> are 64bit. (LLP64 and LP64 models respectively) >> >> I don't know if this is important though. >> > > Good point. All of my platforms are LP64 (Mac OS X and Linux x86-64), > and my main objective at present is to get this working for an > application I'm committed to build, so I was ignoring those sorts of > cross-platform details. > > Perhaps there would need to be new primitives for the basic size of > each relevant C type? I'm anxious to hear what Eliot might have to say > about this since he's got about 2000x more experience with this than I > do. > >
There's actually four 64bit data models, though I believe that pretty much every mainstream 64 bit platform is LP64 except MS Windows. Though no doubt someone is waiting to prove me wrong :) BTW, I just read about an embedded processor with 32 bit pointers, 32 bit integers but 40 bit(!) longs. Now that's nasty. _______________________________________________ Pharo-project mailing list [email protected] http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
