David Miller wrote: > "unsigned long" is always safe because it is going to be > the largest natural word size on the machine, at least > as large as a pointer will be.
er... C standard doesn't guarantee this, and I think that Windows in fact has 32-bit longs on machines with 64-bit pointers > We've been using "unsigned long" for storing virtual addresses in the > Linux kernel for 10+ years and it works just fine. :-) and Linux kernel uses GCC compiler in precise ways I believe that ptrdiff_t is the proper standardized type for an integer the size of a pointer. except... it's always signed :-) Can you just use pointer types and pointer arithmetic? also, standards aside, a common way to get such a type, is "configure" script testing various possibilities like "unsigned long" and "unsigned long long" and seeing which one is the right size for the target architecture. (not sure if that works when cross-compiling though) -Isaac _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org http://lists.gnu.org/mailman/listinfo/grub-devel
