From: Tom Lane <tgl@sss.pgh.pa.us>
To: Joe Conway <mail@joeconway.com>
Cc: pgsql-committers@postgresql.org
Subject: Re: pgsql: Suppress "variable may be used uninitialized" warning.
Date: Tue, 28 Jul 2015 20:54:18 -0400
Message-ID: <8117.1438131258@sss.pgh.pa.us> (raw)
In-Reply-To: <55B81A67.1010104@joeconway.com>
References: <E1ZKEjE-0000m0-Ry@gemulon.postgresql.org>
<55B81A67.1010104@joeconway.com>
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Joe Conway <mail@joeconway.com> writes:
>> Suppress "variable may be used uninitialized" warning.
> That's odd -- I compiled both with and without debug options looking
> for warnings and saw none.
That warning is very compiler-dependent; smarter compilers can prove
that an uninitialized usage is unreachable while dumber ones can't.
I saw it on RHEL6's gcc 4.4.7. I figure that suppressing warnings
on any reasonably popular/modern compiler is fair game.
regards, tom lane
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To: pgsql-committers@postgresql.org
Cc: tgl@sss.pgh.pa.us, mail@joeconway.com
Subject: Re: pgsql: Suppress "variable may be used uninitialized" warning.
In-Reply-To: <8117.1438131258@sss.pgh.pa.us>
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