On Sat, May 26, 2007 at 04:32:47AM +0100, Derek M Jones wrote: > This is an unsigned type, so the wrap around behavior is defined. > But do you really want to map a small negative index into a large > positive one? > > You probably have to use intptr_t and uintptr_t. > > On the other hand if sizeof(size_t) == sizeof(type_of(tree for i)) > is an implicit cast needed? It is not; however, on a lot of targets that doesn't really help since the typical situation will have i smaller than p (any 64bit target with 32bit int). So the problem of having to allocate a lot of extra nodes remains... FWIW, I don't think that asking which of the target's integer types is suitable is really relevant; assuming that such type exists at all, we can make it a parameter of target and be done with that (BTW, we are not guaranteed that there is an integer type capable of holding a pointer - see 7.18.1.4, it's an optional type). - 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
