From: Junio C Hamano <gitster@pobox.com>
To: Jeff King <peff@peff.net>
Cc: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
git@vger.kernel.org,
"Hamza Mahfooz" <someguy@effective-light.com>,
"Taylor Blau" <me@ttaylorr.com>
Subject: Re: [PATCH 6/5] grep.c: mark eol/bol and derived as "const char * const"
Date: Wed, 22 Sep 2021 12:02:52 -0700 [thread overview]
Message-ID: <xmqqh7ec77s3.fsf@gitster.g> (raw)
In-Reply-To: <YUnx7gt0KQNRlhuZ@coredump.intra.peff.net> (Jeff King's message of "Tue, 21 Sep 2021 10:53:34 -0400")
Jeff King <peff@peff.net> writes:
> On Tue, Sep 21, 2021 at 02:45:16PM +0200, Ævar Arnfjörð Bjarmason wrote:
>
>> I think that generally git's codebase could use going beyond just
>> "const char *" when a "const char * const" would suffice, for some
>> reason we seem to mostly use it for the static usage variables.
>
> I didn't dig up the references in the list archive, but I feel like
> we've had this discussion long ago. One of the reasons not to do so is
> that it pollutes the function's interface with internal details. The
> caller does not care whether the function is going to modify the pointer
> itself, because it is passed by value. You could apply the same logic
> that we should be passing "const int", and so on.
Yes. "This pointer is not modified" is a good thing to have inside
an implementation, but the callers should not have to care.
Thanks.
next prev parent reply other threads:[~2021-09-22 19:02 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-21 3:45 [PATCH 0/5] const-correctness in grep.c Jeff King
2021-09-21 3:46 ` [PATCH 1/5] grep: stop modifying buffer in strip_timestamp Jeff King
2021-09-21 5:18 ` Carlo Arenas
2021-09-21 5:24 ` Eric Sunshine
2021-09-21 5:40 ` Carlo Arenas
2021-09-21 5:43 ` Jeff King
2021-09-21 6:42 ` Carlo Marcelo Arenas Belón
2021-09-21 7:37 ` René Scharfe
2021-09-21 14:24 ` Jeff King
2021-09-21 21:02 ` Ævar Arnfjörð Bjarmason
2021-09-22 20:20 ` Jeff King
2021-09-23 0:53 ` Ævar Arnfjörð Bjarmason
2021-09-21 3:48 ` [PATCH 2/5] grep: stop modifying buffer in show_line() Jeff King
2021-09-21 4:22 ` Taylor Blau
2021-09-21 4:42 ` Jeff King
2021-09-21 4:45 ` Taylor Blau
2021-09-21 3:48 ` [PATCH 3/5] grep: stop modifying buffer in grep_source_1() Jeff King
2021-09-21 3:49 ` [PATCH 4/5] grep: mark "haystack" buffers as const Jeff King
2021-09-21 12:04 ` Ævar Arnfjörð Bjarmason
2021-09-21 14:27 ` Jeff King
2021-09-21 3:51 ` [PATCH 5/5] grep: store grep_source buffer " Jeff King
2021-09-21 4:30 ` [PATCH 0/5] const-correctness in grep.c Taylor Blau
2021-09-21 12:07 ` Ævar Arnfjörð Bjarmason
2021-09-21 14:49 ` Jeff King
2021-09-21 12:45 ` [PATCH 6/5] grep.c: mark eol/bol and derived as "const char * const" Ævar Arnfjörð Bjarmason
2021-09-21 14:53 ` Jeff King
2021-09-21 15:17 ` Ævar Arnfjörð Bjarmason
2021-09-21 19:18 ` Jeff King
2021-09-23 13:56 ` Ævar Arnfjörð Bjarmason
2021-09-24 4:22 ` Junio C Hamano
2021-09-22 19:02 ` Junio C Hamano [this message]
2021-09-22 18:57 ` [PATCH 0/5] const-correctness in grep.c Junio C Hamano
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