From: Johannes Schindelin <Johannes.Schindelin@gmx.de>
To: Jeff King <peff@peff.net>
Cc: Junio C Hamano <gitster@pobox.com>,
David Aguilar <davvid@gmail.com>,
Ramsay Jones <ramsay@ramsayjones.plus.com>,
GIT Mailing-list <git@vger.kernel.org>
Subject: Fixing the warning about warning(""); was: Re: [PATCH] difftool.c: mark a file-local symbol with static
Date: Wed, 25 Jan 2017 11:36:50 +0100 (CET) [thread overview]
Message-ID: <alpine.DEB.2.20.1701251135090.3469@virtualbox> (raw)
In-Reply-To: <20170124230500.h3fasbvutjkkke5h@sigill.intra.peff.net>
Hi Peff,
On Tue, 24 Jan 2017, Jeff King wrote:
> On Tue, Jan 24, 2017 at 01:52:13PM -0800, Junio C Hamano wrote:
>
> > > I dunno. As ugly as the "%s" thing is in the source, at least it
> > > doesn't change the output. Not that an extra space is the end of the
> > > world, but it seems like it's letting the problem escape from the
> > > source code.
> > >
> > > Do people still care about resolving this? -Wno-format-zero-length
> > > is in the DEVELOPER options. It wasn't clear to me if that was
> > > sufficient, or if we're going to get a bunch of reports from people
> > > that need to be directed to the right compiler options.
> >
> > I view both as ugly, but probably "%s", "" is lessor of the two evils.
> >
> > Perhaps
> >
> > #define JUST_SHOW_EMPTY_LINE "%s", ""
> >
> > ...
> > warning(JUST_SHOW_EMPTY_LINE);
> > ...
> >
> > or something silly like that?
>
> Gross, but at least it's self documenting. :)
>
> I guess a less horrible version of that is:
>
> static inline warning_blank_line(void)
> {
> warning("%s", "");
> }
>
> We'd potentially need a matching one for error(), but at last it avoids
> macro trickery.
I fail to see how this function, or this definition, makes the code better
than simply calling `warning("%s", "");` and be done with it.
Ciao,
Johannes
next prev parent reply other threads:[~2017-01-25 10:37 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-29 17:36 [PATCH] difftool.c: mark a file-local symbol with static Ramsay Jones
2016-11-30 11:07 ` Johannes Schindelin
2016-11-30 19:57 ` Ramsay Jones
2016-11-30 20:40 ` Junio C Hamano
2016-11-30 21:25 ` Jeff King
2016-11-30 22:37 ` Ramsay Jones
2016-11-30 23:18 ` Jeff King
2016-11-30 23:46 ` Junio C Hamano
2016-12-01 1:18 ` Ramsay Jones
2016-12-01 4:02 ` Jeff King
2016-12-01 18:20 ` Junio C Hamano
2016-12-01 18:50 ` Jeff King
2017-01-22 5:26 ` David Aguilar
2017-01-24 14:23 ` Jeff King
2017-01-24 21:52 ` Junio C Hamano
2017-01-24 23:05 ` Jeff King
2017-01-25 10:36 ` Johannes Schindelin [this message]
2017-01-25 18:35 ` Fixing the warning about warning(""); was: " Jeff King
2017-01-25 21:28 ` Junio C Hamano
2017-01-25 22:01 ` Jeff King
2017-01-26 6:39 ` Johannes Sixt
2017-01-26 11:37 ` Johannes Schindelin
2017-01-26 14:35 ` Jeff King
2017-01-26 14:32 ` Jeff King
2017-01-26 18:26 ` Junio C Hamano
2017-01-26 11:16 ` Johannes Schindelin
2017-01-26 14:39 ` Jeff King
2017-01-26 14:49 ` Johannes Schindelin
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