Re: Fix last unitialized memory warning
Tristan Partin <tristan@neon.tech>
From: "Tristan Partin" <tristan@neon.tech>
To: "Peter Eisentraut" <peter@eisentraut.org>
Cc: <pgsql-hackers@postgresql.org>
Date: 2023-08-09T15:29:56Z
Lists: pgsql-hackers
Attachments
- v1-0001-Fix-erroneous-Werror-missing-braces-on-old-GCC.patch (text/x-patch) patch v1-0001
On Wed Aug 9, 2023 at 10:02 AM CDT, Peter Eisentraut wrote:
> On 09.08.23 10:07, Peter Eisentraut wrote:
> > On 08.08.23 17:14, Tristan Partin wrote:
> >>> I was able to reproduce the warning now on Fedora. I agree with the
> >>> patch
> >>>
> >>> - PgBenchValue vargs[MAX_FARGS];
> >>> + PgBenchValue vargs[MAX_FARGS] = { 0 };
> >>>
> >>> I suggest to also do
> >>>
> >>> typedef enum
> >>> {
> >>> - PGBT_NO_VALUE,
> >>> + PGBT_NO_VALUE = 0,
> >>>
> >>> to make clear that the initialization value is meant to be invalid.
> >>>
> >>> I also got the plpgsql warning that you showed earlier, but I
> >>> couldn't think of a reasonable way to fix that.
> >>
> >> Applied in v2.
> >
> > committed
>
> This patch has apparently upset one buildfarm member with a very old
> compiler:
> https://buildfarm.postgresql.org/cgi-bin/show_history.pl?nm=lapwing&br=HEAD
>
> Any thoughts?
Best I could find is SO question[0] which links out to[1]. Try this
patch. Otherwise, a memset() would probably do too.
[0]: https://stackoverflow.com/questions/13746033/how-to-repair-warning-missing-braces-around-initializer
[1]: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119
--
Tristan Partin
Neon (https://neon.tech)
Commits
-
Fix erroneous -Werror=missing-braces on old GCC
- 5e0c761d0a13 17.0 landed
-
Fix last remaining uninitialized memory warnings
- 4a8fef0d7339 17.0 landed