On Wednesday 03 October 2007 23:36, Pierre Habouzit wrote: > On Wed, Oct 03, 2007 at 09:19:59PM +0000, Jan Wielemaker wrote: > > On Wednesday 03 October 2007 22:48, Pierre Habouzit wrote: > > > On Wed, Oct 03, 2007 at 08:30:04PM +0000, Junio C Hamano wrote: > > > > Traditionally, inside git, we have used the length of things > > > > with "unsigned long" for pretty much anything, except where we > > > > wanted the length exactly sized we used int32_t, uint64_t and > > > > friends. > > > > > > > > A few places pass pointer to unsigned long as the second > > > > parameter to strbuf_detach(), triggering type mismatch warnings. > > > > An easy way out is to change strbuf_detach() to take a pointer > > > > to ulong but I think it is going backwards. Most places that > > > > use "unsigned long" can safely be converted (and made more > > > > correct) to use size_t. > > > > > > Well, afaict, on every linux archs I know of, unsigned longs and > > > size_t are the same. Though, I don't know if that holds for the msys > > > port, and if that does not holds, then a s/unsigned long/size_t/ would > > > help them. Else, for consistency sake, I believe the change is a good > > > one. > > > > Surely on the Microsoft 64-bit compilers size_t is 64-bits and long is > > 32-bits. Don't blame me, I'm just the messenger that learned the hard > > way ... > > Yeah, I've been wondering, and it's the information I had. well, the > information I had is that sizeof(size_t) is 4 on win32, and 8 on win64, > OTOH (and this one I'm sure), on windows, longs are 32bits on both (32 > and 64 bits ABIs). > > So replacing unsigned long with size_t's will help the msys port, > hence I had some insight that this could prove useful, now I'm sure :) The other types that are useful are intptr_t and uintptr_t, integers that are guaranteed to be able to hold a pointer. They are defined by recent versions of the Microsoft compilers and are in <inttypes.h> in most POSIX systems (at least I didn't have complaints since I started using them). I use them for integers holding mangled pointers. Of course most clean C programs should not need that. --- Jan - To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
