From: Johannes Sixt <j6t@kdbg.org>
To: "Jeff King" <peff@peff.net>,
"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Cc: "Junio C Hamano" <gitster@pobox.com>,
"Martin Ågren" <martin.agren@gmail.com>,
git@vger.kernel.org
Subject: Re: [PATCH 5/5] cbtree.h: define cb_init() in terms of CBTREE_INIT
Date: Tue, 28 Sep 2021 08:15:12 +0200 [thread overview]
Message-ID: <5bda4e3e-0951-c28e-320d-23cdadba5bc6@kdbg.org> (raw)
In-Reply-To: <YVJZrOYucywgoi+v@coredump.intra.peff.net>
Am 28.09.21 um 01:54 schrieb Jeff King:
> On Mon, Sep 27, 2021 at 01:02:35PM +0200, Ævar Arnfjörð Bjarmason wrote:
>
>>>> static inline void cb_init(struct cb_tree *t)
>>>> {
>>>> - t->root = NULL;
>>>> + struct cb_tree blank = CBTREE_INIT;
>>>
>>> This could be
>>>
>>> static const struct cb_tree blank = CBTREE_INIT;
>>
>> *nod*...
>> [...]
>> ...but to both this & the above my reply in the side-thread at
>> https://lore.kernel.org/git/87h7e61duk.fsf@evledraar.gmail.com/
>> applies. I.e. this is just following a pattern I got from Jeff King &
>> used in bd4232fac33 (Merge branch 'ab/struct-init', 2021-07-16).
>
> I'm not sure how a compiler would react to the "static const" thing. I
> tested the compiler output for the "auto" struct case you've written
> here, and at least gcc and clang are smart enough to just initialize the
> pointed-to struct directly, with no extra copy.
Good! Then a deviation from established patterns is not warranted.
-- Hannes
next prev parent reply other threads:[~2021-09-28 6:15 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-27 0:39 [PATCH 0/5] Designated initializer cleanup & conversion Ævar Arnfjörð Bjarmason
2021-09-27 0:39 ` [PATCH 1/5] submodule-config.h: remove unused SUBMODULE_INIT macro Ævar Arnfjörð Bjarmason
2021-09-27 0:39 ` [PATCH 2/5] *.[ch] *_INIT macros: use { 0 } for a "zero out" idiom Ævar Arnfjörð Bjarmason
2021-09-27 2:27 ` Eric Sunshine
2021-09-27 6:35 ` Johannes Sixt
2021-09-27 20:25 ` Junio C Hamano
2021-09-27 0:39 ` [PATCH 3/5] *.h _INIT macros: don't specify fields equal to 0 Ævar Arnfjörð Bjarmason
2021-09-27 0:39 ` [PATCH 4/5] *.h: move some *_INIT to designated initializers Ævar Arnfjörð Bjarmason
2021-09-27 0:39 ` [PATCH 5/5] cbtree.h: define cb_init() in terms of CBTREE_INIT Ævar Arnfjörð Bjarmason
2021-09-27 6:37 ` Johannes Sixt
2021-09-27 11:02 ` Ævar Arnfjörð Bjarmason
2021-09-27 23:54 ` Jeff King
2021-09-28 6:15 ` Johannes Sixt [this message]
2021-09-28 18:32 ` Junio C Hamano
2021-09-28 19:42 ` Ævar Arnfjörð Bjarmason
2021-09-28 20:50 ` Junio C Hamano
2021-09-27 9:13 ` Phillip Wood
2021-09-27 11:00 ` Ævar Arnfjörð Bjarmason
2021-09-30 10:01 ` Phillip Wood
2021-09-27 12:54 ` [PATCH v2 0/5] Designated initializer cleanup & conversion Ævar Arnfjörð Bjarmason
2021-09-27 12:54 ` [PATCH v2 1/5] submodule-config.h: remove unused SUBMODULE_INIT macro Ævar Arnfjörð Bjarmason
2021-09-27 23:34 ` Jeff King
2021-09-27 12:54 ` [PATCH v2 2/5] *.[ch] *_INIT macros: use { 0 } for a "zero out" idiom Ævar Arnfjörð Bjarmason
2021-09-27 23:24 ` Jeff King
2021-09-28 0:25 ` Ævar Arnfjörð Bjarmason
2021-09-28 0:46 ` Jeff King
2021-09-28 1:44 ` Ramsay Jones
2021-09-27 12:54 ` [PATCH v2 3/5] *.h _INIT macros: don't specify fields equal to 0 Ævar Arnfjörð Bjarmason
2021-09-27 21:54 ` Junio C Hamano
2021-09-27 12:54 ` [PATCH v2 4/5] *.h: move some *_INIT to designated initializers Ævar Arnfjörð Bjarmason
2021-09-27 23:57 ` Junio C Hamano
2021-09-27 12:54 ` [PATCH v2 5/5] cbtree.h: define cb_init() in terms of CBTREE_INIT Ævar Arnfjörð Bjarmason
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