From: Stephen John Smoogen <smooge@gmail.com>
To: cygwin@cygwin.com
Subject: Re: `std::stod ("nan")` returns negative NaN
Date: Tue, 14 Aug 2018 00:46:00 -0000 [thread overview]
Message-ID: <CANnLRdii8mX71D936AhhEYm+S0s4gS5RGgpPhV_rB6=kzmXKsw@mail.gmail.com> (raw)
In-Reply-To: <20180813234603.GA2310@dimstar.local.net>
On Mon, 13 Aug 2018 at 19:46, Duncan Roe <duncan_roe@optusnet.com.au> wrote:
>
> On Mon, Aug 13, 2018 at 12:52:48PM -0400, Stephen John Smoogen wrote:
> > On Mon, 13 Aug 2018 at 11:16, Masamichi Hosoda <trueroad@trueroad.jp> wrote:
> [...]
> > On Fedora 27 with 7.3.1 it gives
> > ```
> > stod ("nan") = nan
> > stod ("-nan") = nan
> > quiet_NaN () = nan
> > ```
> [...]
I tested a compile on Windows Subsystem for Linux Ubuntu 18.04 which
had gcc 7.3.0. The output was the same as everything but Cygwin. At
this point it is time to pull through the gdb debugger and try to
figure out where it is coming from.
--
Stephen J Smoogen.
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next prev parent reply other threads:[~2018-08-14 0:46 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-13 15:16 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 [this message]
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
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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