[PATCH] Remove extra 0x in the %p formatting string
Timur I. Bakeyev
timur at freebsd.org
Wed May 16 19:59:54 UTC 2018
On 16 May 2018 at 18:18, Franz Sirl <Franz.Sirl-kernel at lauterbach.com>
wrote:
>
> Note that %p is not portable, for example Solaris 10/11 don't prefix 0x to
> the value. And glibc prints "(nil)" for a NULL-pointer.
>
I believe that %p is in the ANSI C standard. Solaris with it's own very
special C compiler.. Unfortunately, standard doesn't really define, how the
pointer should look like. Hence lack of 0x in some implementations and
(nil). As for the last one, I believe that
buffer is: (nil)
still looks better than:
buffer is: 0x(nil)
If we want even more portability we may employ PRIxPTR macro from
stdint.h/inttypes.h(which didn't present in Solaris 2.8 at least :>) and
cast to uintptr_t. But not sure we need such a complications.
With regards,
Timur Bakeyev.
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