Re: BUG #18248: Expression is always zero

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От Alexander Lakhin
Тема Re: BUG #18248: Expression is always zero
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Msg-id 3ba9dde0-ed11-2b58-5ede-b95d00e64228@gmail.com
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Ответ на BUG #18248: Expression is always zero  (PG Bug reporting form <noreply@postgresql.org>)
Список pgsql-bugs
Hello Georgy,

14.12.2023 08:32, PG Bug reporting form wrote:
> The following bug has been logged on the website:
>
> Bug reference:      18248
> Logged by:          RekGRpth
> Email address:      rekgrpth@gmail.com
>
> The value of expression 'thistimecnt >> 31 >> 31 >> 2' (in
> src/timezone/zic.c) is zero regardless of the value of the left operand
> 'thistimecnt', because it is shifted by 64 (in total) bits, which is greater
> or equal to its size of 64 bits.
>
> Maybe this was what was meant?
> thistimecnt >> 31 >> 2

I see the same in
https://github.com/eggert/tz/blob/main/zic.c

So maybe you would like to report that to the tz mailing list?:
https://www.iana.org/time-zones

Best regards,
Alexander



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