Re: pgsql: Provide overflow safe integer math inline functions.

From: Andres Freund <andres(at)anarazel(dot)de>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, pgsql-committers(at)postgresql(dot)org
Subject: Re: pgsql: Provide overflow safe integer math inline functions.
Date: 2017-12-18 16:40:06
Message-ID: 20171218164006.hmyijjs2dgqfkhuh@alap3.anarazel.de
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On 2017-12-17 11:03:49 -0500, Tom Lane wrote:
> Michael Paquier <michael(dot)paquier(at)gmail(dot)com> writes:
> > ... Please note that if you added
> > a volatile cast to "result" as well, then compilation was able to
> > complete and regression tests passed...
>
> Yeah, that squares with my analysis: the problem with the existing test
> is that the compiler is throwing away the function call because its
> output is unused.
>
> If I haven't seen something from Andres shortly, I'll push a fix.

Thanks! Was off for most of yesterday...

Greetings,

Andres Freund

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