From: Chapman Flack <chap@anastigmatix.net>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Subject: Re: [PATCH] quiet conversion warning in DatumGetFloat4
Date: Thu, 1 Jun 2017 18:05:27 -0400
Message-ID: <59308FA7.90107@anastigmatix.net> (raw)
In-Reply-To: <19039.1496353285@sss.pgh.pa.us>
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On 06/01/17 17:41, Tom Lane wrote:
> 12169 warnings generated by -Wconversion
> 4106 warnings generated by -Wconversion -Wno-sign-conversion
> ...
> So it's better with -Wno-sign-conversion, but I'd say we're still not
> going there anytime soon.
On an optimistic note, there might not turn out to be anywhere near
as many distinct causes; there's typically a lot of amplification.
The one patch I sent in eliminated screens upon screens of warning
output from the PL/Java build (I made no effort to count them, I just
listened to the noise in my speakers until I heard the scrolling stop).
It might be fun to see how big a chunk of the 4106 would vanish just
with the first tweak to one of the causes that's mentioned in a lot of
them. (Unless your figures were already after culling to distinct causes,
which would sound like a more-than-casual effort.)
Trouble is, after that first taste of success beyond expectation,
it gets like a drug.
-Chap
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To: pgsql-hackers@postgresql.org
Cc: chap@anastigmatix.net, tgl@sss.pgh.pa.us
Subject: Re: [PATCH] quiet conversion warning in DatumGetFloat4
In-Reply-To: <59308FA7.90107@anastigmatix.net>
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