> On Mon, Aug 17, 2009 at 06:18:45PM +0800, Erich Dollansky wrote: > > On 17 August 2009 pm 18:09:06 cpghost wrote: > > > On Mon, Aug 17, 2009 at 10:25:29AM +0200, Polytropon wrote: > > > > By the way, where did I read that #define macro names have to > > > > be unique within the first 6 (six) letters? :-) > > > > > > The 6 letters limit was actually a restriction of earlier > > > linkers and it affected all identifiers of linkable objects > > > > I did not know that linkers resolved macros those days. > > Of course they didn't. But knowing that linkers restricted the > identifiers' length to 6 chars, it made sense for preprocessors > to restrict them as well before passing them to the compiler > and linker. > > Actually, it's a bit more complicated than that, but the basic > restriction came from the linkers, the preprocessors only inherited > it. > > > Interesting. > > > > Erich > > Regards, > -cpghost.
Putting the symbol names in one word helped the linker / loader a lot. Live was so easy. Heiner C (one word = 32 bit) .NOT. (some word processor software) _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
