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Re: fixing INT64_FORMAT warnings on Mingw

From: Andrew Dunstan <andrew(at)dunslane(dot)net>
To: Peter Eisentraut <peter_e(at)gmx(dot)net>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: fixing INT64_FORMAT warnings on Mingw
Date: 2011-04-27 14:19:00
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers

On 04/27/2011 09:00 AM, Peter Eisentraut wrote:
> On Wed, 2011-04-27 at 00:01 -0400, Andrew Dunstan wrote:
>> Both "%lld" and "%I64d" can be used with mingw to print 64 bit integers.
>> However, modern versions of gcc spit warnings with the former, and not
>> the latter. However, since "%lld" works, it is chosen by our config
>> setup since it comes first in the list of formats tried. Therefore, to
>> keep the compiler happy I proposed to rearrange that so that "%I64d" is
>> preferred if it's found to work.
> We should prefer the standard syntax (%lld) over nonstandard ways.
> There could just as well be platforms that accept %I64d but warn about
> it (as being nonstandard).
> If that doesn't work for a specific platform, either adjust the test so
> that it checks for warnings, or just manually override the result in
> pg_config_os.h.

I did it that way.



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