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BUG #18890: /src/timezone/localtime.c condition always false
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* BUG #18890: /src/timezone/localtime.c condition always false
@ 2025-04-10 16:44 PG Bug reporting form <noreply@postgresql.org>
  2025-04-10 18:02 ` Re: BUG #18890: /src/timezone/localtime.c condition always false Tom Lane <tgl@sss.pgh.pa.us>
  0 siblings, 1 reply; 2+ messages in thread

From: PG Bug reporting form @ 2025-04-10 16:44 UTC (permalink / raw)
  To: pgsql-bugs@lists.postgresql.org; +Cc: dan-eli@mail.ru

The following bug has been logged on the website:

Bug reference:      18890
Logged by:          Daniel Elishakov
Email address:      dan-eli@mail.ru
PostgreSQL version: 17.4
Operating system:   Ubuntu 20.04
Description:        

On line 223 there is a check of string 'name' and in this case it is
initiallized and then is being checked for null once more with no reason.
The code becomes quite buggy.



^ permalink  raw  reply  [nested|flat] 2+ messages in thread

* Re: BUG #18890: /src/timezone/localtime.c condition always false
  2025-04-10 16:44 BUG #18890: /src/timezone/localtime.c condition always false PG Bug reporting form <noreply@postgresql.org>
@ 2025-04-10 18:02 ` Tom Lane <tgl@sss.pgh.pa.us>
  0 siblings, 0 replies; 2+ messages in thread

From: Tom Lane @ 2025-04-10 18:02 UTC (permalink / raw)
  To: dan-eli@mail.ru; +Cc: pgsql-bugs@lists.postgresql.org

PG Bug reporting form <noreply@postgresql.org> writes:
> On line 223 there is a check of string 'name' and in this case it is
> initiallized and then is being checked for null once more with no reason.

This code is taken from the upstream tzcode distribution, in which
TZDEFAULT can be NULL.  (Or so I assume anyway without having looked.)
I'm disinclined to diverge from their code just to satisfy some static
analyzer complaining about useless code --- any reasonable C compiler
will discard that code, so it's not a problem.

> The code becomes quite buggy.

If there is actually a bug here, I'm not seeing it.

			regards, tom lane





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2025-04-10 16:44 BUG #18890: /src/timezone/localtime.c condition always false PG Bug reporting form <noreply@postgresql.org>
2025-04-10 18:02 ` Tom Lane <tgl@sss.pgh.pa.us>

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