| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Martijn van Oosterhout <kleptog(at)svana(dot)org> |
| Cc: | pgsql-bugs(at)postgresql(dot)org, Magnus Hagander <mha(at)sollentuna(dot)net>, Wang Haiyong <wanghaiyong(at)neusoft(dot)com> |
| Subject: | Re: bug in windows xp |
| Date: | 2006-04-08 16:27:19 |
| Message-ID: | 23464.1144513639@sss.pgh.pa.us |
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| Lists: | pgsql-bugs pgsql-patches |
Martijn van Oosterhout <kleptog(at)svana(dot)org> writes:
> Re: SIGFPE on integer divide.
> This signal does appear on linux also.
Hmm, it seems to depend on the hardware you're using. I just tried it
on four different machines:
x86 (Pentium 4): SIGFPE
x86_64 (Xeon EM64T): SIGFPE
HPPA: "ERROR: integer out of range" (the intended behavior)
PPC (Mac OS X): no error, returns zero
So the overflow test in int4div is definitely broken and needs to be
changed. However, this is also a good question:
> A simple C program shows the same. Why isn't it being caught on
> windows?
That still looks like a failure to trap something we should trap.
I'd suggest fixing that first, because if we fix int4div first,
we won't have a simple test case for it.
regards, tom lane
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