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Re: [COMMITTERS] pgsql: Silence compiler warning on win32.

From: Magnus Hagander <magnus(at)hagander(dot)net>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: PG Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [COMMITTERS] pgsql: Silence compiler warning on win32.
Date: 2009-01-28 15:24:33
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Lists: pgsql-committerspgsql-hackers
Tom Lane wrote:
> Magnus Hagander <magnus(at)hagander(dot)net> writes:
>> Tom Lane wrote:
>>> Hmm, need more caffeine I guess.  I was thinking dword == long.  But in
>>> any case, I'd feel a lot more comfortable if the patch ifdef'd the
>>> declaration of exit_status to match, rather than forcing a cast of the
>>> pointer value.
>> Hmm. I looked at that, but that kind of just moves things around.
>> If i change that variable to be DWORD, it still stuffs it into
>> statuses[i] three lines further down,
> Sure, but that's a plain old assignment that can cope with the two
> variables being of different widths, so long as the value to be assigned
> fits in both.  (And if it doesn't, I trust you'll agree that the code is
> broken...)  Casting at the call is simply going to misbehave, very
> nastily, if somehow the variable isn't of the width the function is
> expecting.

Ok. Seems reasonble to change it to a cast in that place instead - will do.

>> I guess the proper solution in that case is to #define a datatype used
>> for return codes. Is it really worth that for this, though?
> Probably not, although I seem to recall we have done that elsewhere
> (pg_ctl maybe?)

Yeah, we have done it in one or two places. I'll just go with the cast
per above for this time.


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