Horton

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

Andres Freund <andres@anarazel.de>

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From: Andres Freund <andres@anarazel.de>
To: Christoph Berg <myon@debian.org>, pgsql-committers <pgsql-hackers@postgresql.org>
Date: 2017-12-14T20:38:03Z
Lists: pgsql-hackers 
Hi,

On 2017-12-14 09:28:08 +0100, Christoph Berg wrote:
> Re: Andres Freund 2017-12-13 <20171213173524.rjs7b3ahsong5zko@alap3.anarazel.de>
> > After staring at it for a while, I seem to have partially mis-copied the
> > note for addition to the subtraction operation...
> 
> I believe the attached is the correct version.

Thanks! Pushed.

Schönen Abend,

Andres

Commits

  1. Try harder to detect unavailability of __builtin_mul_overflow(int64).

  2. Try to detect runtime unavailability of __builtin_mul_overflow(int64).

  3. Fix a number of copy & paste comment errors in common/int.h.

  4. Provide overflow safe integer math inline functions.