From: "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>
To: Alejandro Colomar <colomar.6.4.3@gmail.com>
Cc: mtk.manpages@gmail.com, linux-man@vger.kernel.org
Subject: Re: [PATCH 10/12] spu_run.2: Cast 'int' to 'unsigned int' when printing with "%x"
Date: Sun, 13 Sep 2020 07:54:13 +0200 [thread overview]
Message-ID: <ac533f16-70c8-71a5-995b-865f976d65d5@gmail.com> (raw)
In-Reply-To: <0dc39cc2-6cbf-b8f9-3b21-f216c70f17f2@gmail.com>
Hi Alex,
On 9/12/20 12:29 PM, Alejandro Colomar wrote:
> Hi Michael,
>
> I think this patch of mine should not be applied.
>
> printf() will internally reinterpret the 'int' as 'unsigned int'
> anyway, and the behaviour is completely defined AFAIK.
>
> Relevant standard: C18 §6.5.2.2 6
>
> And in the case you do want this patch, I should have written
> 'unsigned int' in the cast, for consistency.
Okay.
Thanks,
Michael
> On 2020-09-12 01:14, Alejandro Colomar wrote:
> > Signed-off-by: Alejandro Colomar <colomar.6.4.3@gmail.com>
> > ---
> > man2/spu_run.2 | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/man2/spu_run.2 b/man2/spu_run.2
> > index b6bc2c131..ddd03ffd3 100644
> > --- a/man2/spu_run.2
> > +++ b/man2/spu_run.2
> > @@ -254,7 +254,7 @@ int main(void)
> > * 0x00000002 (spu was stopped due to stop\-and\-signal)
> > * | 0x12340000 (the stop\-and\-signal code)
> > */
> > - printf("SPU Status: %#08x\en", spu_status);
> > + printf("SPU Status: %#08x\en", (unsigned) spu_status);
> >
> > exit(EXIT_SUCCESS);
> > }
> >
>
--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
next prev parent reply other threads:[~2020-09-13 5:54 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-11 23:14 [PATCH 00/12] printf() fixes Alejandro Colomar
2020-09-11 23:14 ` [PATCH 01/12] dl_iterate_phdr.3: Cast 'ElfN_Word' to 'uintmax_t' for printf() Alejandro Colomar
2020-09-12 5:52 ` Jakub Wilk
2020-09-12 8:31 ` Alejandro Colomar
2020-09-15 7:35 ` Jakub Wilk
2020-09-15 9:27 ` Alejandro Colomar
2020-09-11 23:14 ` [PATCH 02/12] malloc_hook.3: Remove unneeded cast, and print 'size_t' with "%zu" Alejandro Colomar
2020-09-13 5:46 ` Michael Kerrisk (man-pages)
2020-09-11 23:14 ` [PATCH 03/12] pthread_getcpuclockid.3: Cast 'time_t' to 'intmax_t' for printf() Alejandro Colomar
2020-09-13 5:58 ` Michael Kerrisk (man-pages)
2020-09-13 6:05 ` Michael Kerrisk (man-pages)
2020-09-13 8:12 ` Alejandro Colomar
2020-09-13 12:04 ` Michael Kerrisk (man-pages)
2020-09-14 8:58 ` Jakub Wilk
2020-09-14 19:38 ` Michael Kerrisk (man-pages)
2020-09-11 23:14 ` [PATCH 04/12] getgrent_r.3: Cast 'gid_t' " Alejandro Colomar
2020-09-13 6:01 ` Michael Kerrisk (man-pages)
2020-09-11 23:14 ` [PATCH 05/12] getpwent_r.3: Cast 'uid_t' " Alejandro Colomar
2020-09-13 6:01 ` Michael Kerrisk (man-pages)
2020-09-13 8:28 ` Alejandro Colomar
2020-09-13 12:04 ` Michael Kerrisk (man-pages)
2020-09-13 13:28 ` Alejandro Colomar
2020-09-13 18:11 ` Alejandro Colomar
2020-09-11 23:14 ` [PATCH 06/12] rtld-audit.7: Use "%u" rather than "%d" when printing 'unsigned int' values Alejandro Colomar
2020-09-13 5:46 ` Michael Kerrisk (man-pages)
2020-09-11 23:14 ` [PATCH 07/12] userfaultfd.2: Use 'PRIx64' rather than "%llx" when printing 64-bit fixed-width types Alejandro Colomar
2020-09-13 5:51 ` Michael Kerrisk (man-pages)
2020-09-11 23:14 ` [PATCH 08/12] clock_getres.2: Cast 'time_t' to 'intmax_t' for printf() and fix the length modifiers Alejandro Colomar
2020-09-12 5:55 ` Jakub Wilk
2020-09-12 8:32 ` Alejandro Colomar
2020-09-12 10:06 ` [PATCH v2 08/12] clock_getres.2: Cast 'time_t' very small,values to 'int' " Alejandro Colomar
2020-09-13 6:05 ` Michael Kerrisk (man-pages)
2020-09-14 9:11 ` Jakub Wilk
2020-09-14 9:48 ` Alejandro Colomar
2020-09-11 23:14 ` [PATCH 09/12] open_by_handle_at.2: Use "%u" rather than "%d" when printing 'unsigned int' values Alejandro Colomar
2020-09-13 5:46 ` Michael Kerrisk (man-pages)
2020-09-11 23:14 ` [PATCH 10/12] spu_run.2: Cast 'int' to 'unsigned int' when printing with "%x" Alejandro Colomar
2020-09-12 10:29 ` Alejandro Colomar
2020-09-13 5:54 ` Michael Kerrisk (man-pages) [this message]
2020-09-11 23:14 ` [PATCH 11/12] mprotect.2: Use "%p" rather than casting to 'long' when printing adresses (pointer values) Alejandro Colomar
2020-09-13 5:46 ` Michael Kerrisk (man-pages)
2020-09-11 23:14 ` [PATCH 12/12] pidfd_open.2: Cast 'short' to 'unsigned int' when printing with "%x" Alejandro Colomar
2020-09-13 5:55 ` Michael Kerrisk (man-pages)
2020-09-13 8:06 ` Alejandro Colomar
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