From: Corinna Vinschen <corinna-cygwin@cygwin.com>
To: cygwin-apps@cygwin.com
Subject: [GOLDSTAR] Re: fflush(NULL) clobbers input streams
Date: Wed, 19 Jul 2017 17:03:00 -0000 [thread overview]
Message-ID: <20170719170313.GC10516@calimero.vinschen.de> (raw)
In-Reply-To: <20170719084556.GA13494@calimero.vinschen.de>
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On Jul 19 10:45, Corinna Vinschen wrote:
> On Jul 18 22:16, Ken Brown wrote:
> > On 7/18/2017 6:41 PM, Ken Brown wrote:
> > > On 7/18/2017 3:21 PM, Achim Gratz wrote:
> > > > Corinna Vinschen writes:
> > > > > Oh, and a plain C testcase, of course...
> > > >
> > > > Call that fflush.c:
> > > > [...]
> > > > Then run:
> > > >
> > > > gcc fflush.c -o fflush
> > > > cat fflush.c | ./fflush 2>/dev/null > fflush.out
> > > > diff fflush.c fflush.out
> > > >
> > > > If things are working, fflush.c and fflush.out should be identical.
> > > > Currently only the first line makes it into fflush.out on Cygwin.
> > >
> > > I've checked that the 2017-03-08 snapshot is good and the 2017-03-10
> > > snapshot is bad. I'll bisect further when I get a chance
> >
> > Done:
> >
> > 44b1746a41921533d27aca414a9188314cb725b6 is the first bad commit
> > commit 44b1746a41921533d27aca414a9188314cb725b6
> > Author: Corinna Vinschen <corinna@vinschen.de>
> > Date: Fri Mar 10 20:21:09 2017 +0100
> >
> > errno: Stop using _impure_ptr->_errno completely
> >
> > We use errno AKA _REENT->_errno since the last century and only set
> > _impure_ptr->_errno for backward compat. Stop that. Also, remove
> > the last check for _impure_ptr->_errno in Cygwin code.
> >
> > Ken
>
> Achim, thanks for the testcase. Ken, thanks for bisecting. You're
> my hero!
>
> I reverted the patch and created new developer snapshots.
I forgot the gold star. Thanks again, Ken!
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Maintainer cygwin AT cygwin DOT com
Red Hat
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next prev parent reply other threads:[~2017-07-19 17:03 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-17 17:53 Achim Gratz
2017-07-18 9:55 ` Corinna Vinschen
2017-07-18 10:51 ` Corinna Vinschen
2017-07-18 19:21 ` Achim Gratz
2017-07-18 22:41 ` Ken Brown
2017-07-19 2:16 ` Ken Brown
2017-07-19 8:46 ` Corinna Vinschen
2017-07-19 17:03 ` Corinna Vinschen [this message]
2017-07-19 17:20 ` [GOLDSTAR] " Ken Brown
2017-07-19 20:40 ` Andrew Schulman
2017-07-19 17:11 ` Achim Gratz
2017-07-19 17:03 ` Achim Gratz
2017-07-18 18:33 ` Achim Gratz
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