Re: What is the right way to print a UINTN?

["Cohen, Eugene" <eugene@hp.com>]

> Printing UINTN with %x *or* with %d are equally bugs.
> 
> For X64 / AARCH64 / IA64 builds, they are actual bugs (that happen to
> work most of the time).

Feel free to file a Bugzilla on the extensive usage of this in edk2 [ducking and running].  :)
 
> > I'm envisioning having to create a slide in the future for UEFI
> > training about the proper use of UINTNs and describing "If you think
> > it may exceed 2^32-1 then upcast to UINT64, otherwise don't worry
> > about it" and it makes me squirm.
> 
> It makes me squirm too. I think the slide should recommend the
> casting
> that I proposed. ;) "There is no conversion specifier dedicated to
> UINTN; the portable way to print it is to cast it to UINT64, then print
> it with %Lx."

This is reasonable although I expect to get asked why a lot of the other code doesn't adhere to this recommendation.

Thanks,

Eugene