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From: Joseph Myers <joseph@codesourcery.com>
To: Masamichi Hosoda <trueroad@trueroad.jp>
Cc: <newlib@sourceware.org>, <cygwin@cygwin.com>,
	<corinna-cygwin@cygwin.com>
Subject: Re: strtod ("nan") returns negative NaN
Date: Tue, 14 Aug 2018 20:05:00 -0000	[thread overview]
Message-ID: <alpine.DEB.2.20.1808141943140.21830@digraph.polyomino.org.uk> (raw)
In-Reply-To: <20180815.000539.1012490218433540835.trueroad@trueroad.jp>

On Wed, 15 Aug 2018, Masamichi Hosoda wrote:

> On Linux with glibc, both strtod ("nan")
> and strtod ("-nan") return positive NaN.
> 
> So I've created the patch that behaves like glibc.
> Both strtod ("nan") and strtod ("-nan") return positive NaN.

I would suggest that you should not consider fixed bugs in glibc (bug 
23007 in this case) to be appropriate to emulate in other libraries.

-- 
Joseph S. Myers
joseph@codesourcery.com

--
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WARNING: multiple messages have this Message-ID
From: Joseph Myers <joseph@codesourcery.com>
To: Masamichi Hosoda <trueroad@trueroad.jp>
Cc: <newlib@sourceware.org>, <cygwin@cygwin.com>,
	<corinna-cygwin@cygwin.com>
Subject: Re: strtod ("nan") returns negative NaN
Date: Tue, 14 Aug 2018 20:19:00 -0000	[thread overview]
Message-ID: <alpine.DEB.2.20.1808141943140.21830@digraph.polyomino.org.uk> (raw)
Message-ID: <20180814201900.ZbLgkojzJDpKFLRHeYRb6GMofOXOfTnQz8jEhiwi6kI@z> (raw)
In-Reply-To: <20180815.000539.1012490218433540835.trueroad@trueroad.jp>

On Wed, 15 Aug 2018, Masamichi Hosoda wrote:

> On Linux with glibc, both strtod ("nan")
> and strtod ("-nan") return positive NaN.
> 
> So I've created the patch that behaves like glibc.
> Both strtod ("nan") and strtod ("-nan") return positive NaN.

I would suggest that you should not consider fixed bugs in glibc (bug 
23007 in this case) to be appropriate to emulate in other libraries.

-- 
Joseph S. Myers
joseph@codesourcery.com

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

  parent reply	other threads:[~2018-08-14 19:44 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-13 15:16 `std::stod ("nan")` " Masamichi Hosoda
2018-08-13 16:53 ` Stephen John Smoogen
2018-08-13 23:46   ` Duncan Roe
2018-08-14  0:46     ` Stephen John Smoogen
2018-08-14  1:10       ` Masamichi Hosoda
2018-08-14  2:31         ` strtod ("nan") returns negative NaN (was `std::stod ("nan")` returns negative NaN) Masamichi Hosoda
2018-08-14  3:25           ` strtod ("nan") returns negative NaN Steven Penny
2018-08-14  4:46           ` Masamichi Hosoda
2018-08-14  9:56             ` Corinna Vinschen
2018-08-14 10:39               ` Corinna Vinschen
2018-08-14 12:18                 ` Masamichi Hosoda
2018-08-14 13:23                   ` Corinna Vinschen
2018-08-14 13:41                     ` Stephen John Smoogen
2018-08-14 15:25                     ` Heavenly Avenger
2018-08-14 15:54                       ` Corinna Vinschen
2018-08-14 17:08                         ` Heavenly Avenger
2018-08-14 16:05                     ` Masamichi Hosoda
2018-08-14 19:24                     ` Steven Penny
2018-08-14 21:45                       ` Andy Moreton
2018-08-14 22:23                         ` Stephen John Smoogen
2018-08-15  0:02                           ` Eric Blake
2018-08-15  7:36                             ` Steven Penny
2018-08-21  3:18                             ` Brian Inglis
2018-08-14 19:44                 ` Achim Gratz
2018-08-21 13:28                   ` Brian Inglis
2018-08-14 15:05               ` Masamichi Hosoda
2018-08-14 15:21                 ` Masamichi Hosoda
2018-08-14 15:35                 ` Heavenly Avenger
2018-08-14 20:05                 ` Joseph Myers [this message]
2018-08-14 20:19                   ` Joseph Myers
2018-08-15  8:51                   ` Masamichi Hosoda
2018-08-15 12:55                     ` Masamichi Hosoda

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