From: Junio C Hamano <gitster@pobox.com>
To: Alban Gruin <alban.gruin@gmail.com>
Cc: Ralf Thielow via GitGitGadget <gitgitgadget@gmail.com>,
git@vger.kernel.org, Ralf Thielow <ralf.thielow@gmail.com>,
Jeff King <peff@peff.net>
Subject: Re: [PATCH] rebase-interactive.c: silence format-zero-length warnings
Date: Tue, 03 Mar 2020 06:20:32 -0800 [thread overview]
Message-ID: <xmqqh7z5a5an.fsf@gitster-ct.c.googlers.com> (raw)
In-Reply-To: <87196142-8473-7d19-4edd-7452eaefda1c@gmail.com> (Alban Gruin's message of "Tue, 3 Mar 2020 11:17:46 +0100")
Alban Gruin <alban.gruin@gmail.com> writes:
>> Fixes the following warnings:
>>
>> rebase-interactive.c: In function ‘edit_todo_list’:
>> rebase-interactive.c:137:38: warning: zero-length gnu_printf format string [-Wformat-zero-length]
>> write_file(rebase_path_dropped(), "");
>> rebase-interactive.c:144:37: warning: zero-length gnu_printf format string [-Wformat-zero-length]
> ...
> On a tangent: what's wrong with empty format strings?
Those functions that are truly printf-like, such a call would be
no-op and an indication of possible typo ("did you forget a %s or
something?"), I presume.
But many of our functions that take printf-like format strings will
do useful things even when an empty string is given, so the warning
is unwanted.
prev parent reply other threads:[~2020-03-03 14:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-27 20:25 [PATCH] rebase-interactive.c: silence format-zero-length warnings Ralf Thielow via GitGitGadget
2020-02-27 23:54 ` [PATCH] config.mak.dev: re-enable -Wformat-zero-length Jeff King
2020-02-28 16:42 ` Junio C Hamano
2020-02-28 17:06 ` Jeff King
2020-03-03 10:17 ` [PATCH] rebase-interactive.c: silence format-zero-length warnings Alban Gruin
2020-03-03 14:20 ` Junio C Hamano [this message]
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