i've seen code that uses 53 where i suspect it means 54. rarely does any "fancy casting stuff" work on more than one platform.
brucee On 1/17/06, Russ Cox <[EMAIL PROTECTED]> wrote: > > > (vlong)(...|((p)[3]<<24)) sign extends. Casting the (p)[0] > > > to (ulong) has the effect of making the whole 32-bit expression > > > unsigned on 32-bit systems, but if ulong is 64 bits, then > > > you'll still sign-extend ((p)[3]<<24) during the convertsion > > > from int to ulong. > > > > i'd be careful to define ulong to be 32 bits for all plan 9 source > > including p9p (using `ulong == unsigned int' if necessary). > > otherwise quite a bit more will break. > > having fcall.h use u32int is fine too, of course, just to make the point > > clearer > > I started out doing ulong==unsigned int (cf. drawterm), > but that implies long==int, and I just couldn't bear to do > that for p9p. I've been fixing problems as they come up. > Libmemdraw needed changes (which I expected), and > libmp did too (which I didn't). Do you know of other code? > > Russ >
