On Tue, Dec 23, 2008 at 08:51, Christopher Li <sparse@xxxxxxxxxxx> wrote: >> But how about void *? If void *p = x, what p+1 should be? Gcc defines >> sizeof(void) being 1, and people seem to know and use this. >> http://gcc.gnu.org/onlinedocs/gcc-4.3.2/gcc/Warning-Options.html#index-Wno_002dpointer_002darith-347 > > Using pointer arithmetic on void* is not as crazy as using > sizeof(void) directly. Most people using void* arithmetic is > thinking it as char *. You should able to add a one line change > in evaluate_ptr_add() to allow void* pointer arithmetic. > > Still better than hard code sizeof(void) as 1. I don't really see the problem. It's not like you can pass void i; or void *p; *p = 5; or store something into void anyway. And in gcc void *p; sizeof(*p) == 1, so void realy looks like being sizeof 1. -- To unsubscribe from this list: send the line "unsubscribe linux-sparse" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
