Horton

RE: power() function in Windows: "value out of range: underflow"

Huong Dangminh <huo-dangminh@ys.jp.nec.com>

View thread View on postgr.es
From: Huong Dangminh <huo-dangminh@ys.jp.nec.com>
To: Tom Lane <tgl@sss.pgh.pa.us>, David Rowley <david.rowley@2ndquadrant.com>
Cc: Euler Taveira <euler@timbira.com.br>, "pgsql-bugs@lists.postgresql.org" <pgsql-bugs@lists.postgresql.org>, Pg Hackers <pgsql-hackers@postgresql.org>, Akio Iwaasa <aki-iwaasa@vt.jp.nec.com>
Date: 2018-05-01T02:20:13Z
Lists: pgsql-bugs, pgsql-hackers 
> From: Tom Lane [mailto:tgl@sss.pgh.pa.us]
> > I updated the patch as David Rowley mentioned.
> 
> Pushed.  I'd mainly note that you need to update all the variant float8
> expected-files, not just the primary one.  (Sometimes this requires a bit

Thank you.
I will be careful next time.

> of guesswork, but here we're expecting all platforms to produce the same
> result.  The buildfarm should tell us if I got it wrong.)

Also thanks a lot of fixing failure in BSD platform as the result from buildfarm.


---
Thanks and best regards,
Dang Minh Huong
NEC Solution Innovators, Ltd.
http://www.nec-solutioninnovators.co.jp/en/

Commits

  1. Revert back-branch changes in power()'s behavior for NaN inputs.

  2. Avoid wrong results for power() with NaN input on more platforms.

  3. Avoid wrong results for power() with NaN input on some platforms.