From: | Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Jan Wieck <jwieck(at)debis(dot)com> |
Cc: | PostgreSQL HACKERS <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: [HACKERS] "24" < INT_MIN returns TRUE ??? |
Date: | 1999-07-09 04:01:27 |
Message-ID: | 199907090401.AAA07699@candle.pha.pa.us |
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Lists: | pgsql-hackers |
> Hi,
>
> did anyone compile latest CVS with v1.31
> utils/adt/numutils.c?
>
> Marc activated some range checks in pg_atoi() and now I have
> a very interesting behaviour on a Linux box running gcc 2.8.1
> glibc-2.
>
> Inside of pg_atoi(), the value is read into a long. Comparing
> a small positive long like 24 against INT_MIN returns TRUE -
> dunno how. Putting INT_MIN into another long variable and
> comparing the two returns the expected FALSE - so what's
> going on here? long, int32 and int have all 4 bytes here.
I just reversed out the patch. It was causing initdb to fail!
I don't understand why it fails either, but have sent the report back to
the patch author.
I would love to hear the answer on this one.
--
Bruce Momjian | http://www.op.net/~candle
maillist(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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