From: Junio C Hamano <gitster@pobox.com>
To: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Cc: git@vger.kernel.org, "Jeff King" <peff@peff.net>,
"Johannes Schindelin" <johannes.schindelin@gmx.de>,
"Carlo Marcelo Arenas Belón" <carenas@gmail.com>
Subject: Re: [PATCH v2 06/10] grep/pcre2: use compile-time PCREv2 version test
Date: Wed, 03 Mar 2021 16:14:07 -0800 [thread overview]
Message-ID: <xmqqtuprhj1s.fsf@gitster.c.googlers.com> (raw)
In-Reply-To: <20210218000728.13995-7-avarab@gmail.com> ("Ævar Arnfjörð Bjarmason"'s message of "Thu, 18 Feb 2021 01:07:24 +0100")
Ævar Arnfjörð Bjarmason <avarab@gmail.com> writes:
> +#if (PCRE2_MAJOR >= 10 && PCRE2_MINOR >= 36) || PCRE2_MAJOR >= 11
> +#define GIT_PCRE2_VERSION_10_36_OR_HIGHER
> +#endif
This is not wrong per-se but it does look misleading not to spell it
as
#if (PCRE2_MAJOR == 10 && PCRE2_MINOR >= 36) || PCRE2_MAJOR >= 11
which would convey the intention much clearly.
Hint to notice the difference: imagine if it were "9.37 and later in
9.X series, 10.36 and later in 10.X series and anything after 11 are
OK".
In other words, the minor version is always tied to a particular
major version and "major >= X && minor >= Y" is often a bug, even
though in this case it happens to be OK only because 10 and 11 are
consecutive.
next prev parent reply other threads:[~2021-03-04 0:53 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-16 12:06 [PATCH 0/3] Revive 'pcre2-chartables-leakfix' Johannes Schindelin via GitGitGadget
2019-10-16 12:06 ` [PATCH 1/3] grep: make PCRE1 aware of custom allocator Carlo Marcelo Arenas Belón via GitGitGadget
2019-10-16 12:06 ` [PATCH 2/3] grep: make PCRE2 " Carlo Marcelo Arenas Belón via GitGitGadget
2019-10-16 12:06 ` [PATCH 3/3] grep: avoid leak of chartables in PCRE2 Johannes Schindelin via GitGitGadget
2019-10-16 12:10 ` [PATCH v2 0/3] Revive 'pcre2-chartables-leakfix' Johannes Schindelin via GitGitGadget
2019-10-16 12:10 ` [PATCH v2 1/3] grep: make PCRE1 aware of custom allocator Carlo Marcelo Arenas Belón via GitGitGadget
2019-10-16 12:10 ` [PATCH v2 2/3] grep: make PCRE2 " Carlo Marcelo Arenas Belón via GitGitGadget
2019-10-18 1:38 ` Junio C Hamano
2021-02-04 21:05 ` [PATCH 00/10] grep/pcre2: memory allocation fixes Ævar Arnfjörð Bjarmason
2021-02-10 21:34 ` Junio C Hamano
2021-02-18 0:07 ` [PATCH v2 " Ævar Arnfjörð Bjarmason
2021-03-04 0:34 ` Junio C Hamano
2021-02-18 0:07 ` [PATCH v2 01/10] grep/pcre2: drop needless assignment + assert() on opt->pcre2 Ævar Arnfjörð Bjarmason
2021-02-18 0:07 ` [PATCH v2 02/10] grep/pcre2: drop needless assignment to NULL Ævar Arnfjörð Bjarmason
2021-02-18 0:07 ` [PATCH v2 03/10] grep/pcre2: correct reference to grep_init() in comment Ævar Arnfjörð Bjarmason
2021-02-18 0:07 ` [PATCH v2 04/10] grep/pcre2: prepare to add debugging to pcre2_malloc() Ævar Arnfjörð Bjarmason
2021-02-18 0:07 ` [PATCH v2 05/10] grep/pcre2: add GREP_PCRE2_DEBUG_MALLOC debug mode Ævar Arnfjörð Bjarmason
2021-02-18 0:07 ` [PATCH v2 06/10] grep/pcre2: use compile-time PCREv2 version test Ævar Arnfjörð Bjarmason
2021-03-04 0:14 ` Junio C Hamano [this message]
2021-02-18 0:07 ` [PATCH v2 07/10] grep/pcre2: use pcre2_maketables_free() function Ævar Arnfjörð Bjarmason
2021-02-18 0:07 ` [PATCH v2 08/10] grep/pcre2: actually make pcre2 use custom allocator Ævar Arnfjörð Bjarmason
2021-03-04 0:24 ` Junio C Hamano
2021-02-18 0:07 ` [PATCH v2 09/10] grep/pcre2: move back to thread-only PCREv2 structures Ævar Arnfjörð Bjarmason
2021-03-04 0:27 ` Junio C Hamano
2021-02-18 0:07 ` [PATCH v2 10/10] grep/pcre2: move definitions of pcre2_{malloc,free} Ævar Arnfjörð Bjarmason
2021-03-04 0:28 ` Junio C Hamano
2021-02-04 21:05 ` [PATCH 01/10] grep/pcre2: drop needless assignment + assert() on opt->pcre2 Ævar Arnfjörð Bjarmason
2021-02-04 21:05 ` [PATCH 02/10] grep/pcre2: drop needless assignment to NULL Ævar Arnfjörð Bjarmason
2021-02-04 21:05 ` [PATCH 03/10] grep/pcre2: correct reference to grep_init() in comment Ævar Arnfjörð Bjarmason
2021-02-04 21:05 ` [PATCH 04/10] grep/pcre2: prepare to add debugging to pcre2_malloc() Ævar Arnfjörð Bjarmason
2021-02-04 21:05 ` [PATCH 05/10] grep/pcre2: add GREP_PCRE2_DEBUG_MALLOC debug mode Ævar Arnfjörð Bjarmason
2021-02-10 10:38 ` Johannes Schindelin
2021-02-04 21:05 ` [PATCH 06/10] grep/pcre2: use compile-time PCREv2 version test Ævar Arnfjörð Bjarmason
2021-02-04 21:05 ` [PATCH 07/10] grep/pcre2: use pcre2_maketables_free() function Ævar Arnfjörð Bjarmason
2021-02-10 10:43 ` Johannes Schindelin
2021-03-04 0:16 ` Junio C Hamano
2021-02-04 21:05 ` [PATCH 08/10] grep/pcre2: actually make pcre2 use custom allocator Ævar Arnfjörð Bjarmason
2021-02-10 12:38 ` Johannes Schindelin
2021-02-04 21:05 ` [PATCH 09/10] grep/pcre2: move back to thread-only PCREv2 structures Ævar Arnfjörð Bjarmason
2021-02-04 21:05 ` [PATCH 10/10] grep/pcre2: move definitions of pcre2_{malloc,free} Ævar Arnfjörð Bjarmason
2021-02-10 12:40 ` Johannes Schindelin
2019-10-16 12:10 ` [PATCH v2 3/3] grep: avoid leak of chartables in PCRE2 Carlo Marcelo Arenas Belón via GitGitGadget
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