| From: | Dmitry Mityugov <d(dot)mityugov(at)postgrespro(dot)ru> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | patch: Use pg_assume in jsonb_util.c to fix GCC 15 warnings |
| Date: | 2025-07-10 20:00:00 |
| Message-ID: | 0c623e8a204187b87b4736792398eaf1@postgrespro.ru |
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| Lists: | pgsql-hackers |
When compiled with Assert() macro disabled, GCC 15 produces warnings
about possibly uninitialized variables in
src/backend/utils/adt/jsonb_util.c module. This problem was discussed in
detail in this thread, in April 2025:
https://www.postgresql.org/message-id/988bf1bc-3f1f-99f3-bf98-222f1cd9dc5e@xs4all.nl
.
Recently introduced pg_assume() macro let fix such problems easily. The
attached patch fixes them in jsonb_util.c module. I verified that
PostgreSQL compiles clearly with this patch and GCC 15.1.1 on an x86
64-bit machine (with and without --enable-cassert), and with GCC 14.2.1
on a 64-bit ARM machine. `make check` also passes.
I'm attaching the patch.
Regards,
Dmitry
| Attachment | Content-Type | Size |
|---|---|---|
| 0001-Use-pg_assume-in-jsonb_util.c-to-fix-GCC-15-warning.patch | text/x-diff | 1.1 KB |
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