Messages in this thread | | | Date | Tue, 16 Feb 1999 15:04:25 -0500 (EST) | From | Chuck Lever <> | Subject | Re: Q: void* vs. unsigned long |
| |
On Tue, 16 Feb 1999, Brian Gerst wrote: > H. Peter Anvin wrote: > > Actually, it will. sizeof(unsigned long) == sizeof(void *) == 8 on > > 64-bit architectures. > > I thought it was int that changed with the word size of the > architecture, not long. Most C books I've seen said long is always 32 > bits regardless of the word size. Regardless, if the value represents a > pointer, then it should be declared as such - for the sake of clarity if > nothing else.
i was also wondering about the use of (ulong) and (void *). is it true that (ulong) is used for physical addresses and void * is used for virtual addresses? wouldn't it be clearer to use a couple of typedefs?
- Chuck Lever -- corporate: <chuckl@netscape.com> personal: <chucklever@netscape.net> or <cel@monkey.org>
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |