From: Kaartic Sivaraam <kaarticsivaraam91196@gmail.com>
To: Junio C Hamano <gitster@pobox.com>
Cc: git@vger.kernel.org
Subject: Re: [RFC PATCH 1/5] builtin/checkout: avoid usage of '!!'
Date: Sat, 23 Sep 2017 17:47:09 +0530 [thread overview]
Message-ID: <de378f54-1c6f-327e-3f61-f8b215cfe203@gmail.com> (raw)
In-Reply-To: <xmqqlgl8n8fn.fsf@gitster.mtv.corp.google.com>
On Thursday 21 September 2017 07:01 AM, Junio C Hamano wrote:
> What does "with arithmetic constructs" mean? Would it refer to
> things like
>
> !!i != !!(j + 3)
>
> that unnecessarily obfuscates what is going on?
Thanks that clears the confusion because I haven't seen constructs
like this before (who would even do something like this?)
> The primary reason why !!ptr is good in the code that this patch
> touches is because what is doubly negated is a pointer, not an
> integer or other things. The called function does *not* limit its
> input to 0 or 1 (it wants 0 for false and everything else for true),
> so we wouldn't be doing !!i if what we are passing is already an
> integer. But we cannot just pass a pointer to such a parameter
> without getting the compiler upset.
>
>
Done. So I'll drop this patch.
---
Kaartic
next prev parent reply other threads:[~2017-09-23 12:17 UTC|newest]
Thread overview: 127+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-24 15:41 [PATCH/RFC] branch: warn user about non-existent branch Kaartic Sivaraam
2017-07-24 19:16 ` Change in output as a result of patch Kaartic Sivaraam
2017-07-24 21:25 ` Junio C Hamano
2017-07-25 18:54 ` Kaartic Sivaraam
2017-07-26 22:29 ` Junio C Hamano
2017-08-07 14:39 ` Can the '--set-upstream' option of branch be removed ? Kaartic Sivaraam
2017-08-07 14:39 ` [PATCH 1/2 / RFC] builtin/branch: remove the deprecated '--set-upstream' option Kaartic Sivaraam
2017-08-07 14:39 ` [PATCH 2/2 / RFC] branch: quote branch/ref names to improve readability Kaartic Sivaraam
2017-08-07 20:59 ` Can the '--set-upstream' option of branch be removed ? Junio C Hamano
2017-08-08 13:00 ` Kaartic Sivaraam
2017-08-08 16:47 ` Junio C Hamano
2017-08-08 17:11 ` [PATCH v2 1/2 / RFC] builtin/branch: stop supporting the use of --set-upstream option Kaartic Sivaraam
2017-08-08 17:11 ` [PATCH v2 2/2 / RFC] branch: quote branch/ref names to improve readability Kaartic Sivaraam
2017-08-08 18:55 ` Stefan Beller
2017-08-08 19:43 ` Junio C Hamano
2017-08-08 20:08 ` Stefan Beller
2017-08-08 18:33 ` [PATCH v2 1/2 / RFC] builtin/branch: stop supporting the use of --set-upstream option Martin Ågren
2017-08-14 8:50 ` Kaartic Sivaraam
2017-08-14 8:54 ` [PATCH v3 " Kaartic Sivaraam
2017-08-14 19:14 ` Martin Ågren
2017-08-15 10:23 ` Kaartic Sivaraam
2017-08-14 20:19 ` Junio C Hamano
2017-08-15 10:56 ` Kaartic Sivaraam
2017-08-15 18:58 ` Junio C Hamano
2017-08-16 18:13 ` Kaartic Sivaraam
2017-08-16 19:09 ` Junio C Hamano
2017-08-17 2:04 ` Kaartic Sivaraam
2017-09-12 6:49 ` Junio C Hamano
2017-09-12 7:00 ` Kaartic Sivaraam
2017-09-12 10:31 ` [PATCH/RFC] branch: strictly don't allow a branch with name 'HEAD' Kaartic Sivaraam
2017-08-17 2:54 ` [PATCH v4 1/3] test: cleanup cruft of a test Kaartic Sivaraam
2017-08-17 2:54 ` [PATCH v4 2/3] builtin/branch: stop supporting the use of --set-upstream option Kaartic Sivaraam
2017-08-17 18:21 ` Martin Ågren
2017-08-17 19:55 ` Junio C Hamano
2017-08-18 2:41 ` Kaartic Sivaraam
2017-08-18 16:30 ` Junio C Hamano
2017-08-18 16:57 ` Martin Ågren
2017-08-17 19:58 ` Junio C Hamano
2017-08-18 2:39 ` Kaartic Sivaraam
2017-08-18 16:31 ` Junio C Hamano
2017-08-17 2:54 ` [PATCH v4 3/3] branch: quote branch/ref names to improve readability Kaartic Sivaraam
2017-08-07 14:49 ` Change in output as a result of patch Kaartic Sivaraam
2017-09-19 7:15 ` [RFC PATCH 0/5] branch: improve error messages of branch renaming Kaartic Sivaraam
2017-09-19 7:15 ` [RFC PATCH 1/5] builtin/checkout: avoid usage of '!!' Kaartic Sivaraam
2017-09-20 4:00 ` Junio C Hamano
2017-09-20 8:09 ` Kaartic Sivaraam
2017-09-20 11:26 ` Kaartic Sivaraam
2017-09-21 1:31 ` Junio C Hamano
2017-09-23 12:17 ` Kaartic Sivaraam [this message]
2017-09-19 7:15 ` [RFC PATCH 2/5] branch: document the usage of certain parameters Kaartic Sivaraam
2017-09-20 4:12 ` Junio C Hamano
2017-09-20 9:01 ` Kaartic Sivaraam
2017-09-21 1:33 ` Junio C Hamano
2017-09-19 7:15 ` [RFC PATCH 3/5] branch: cleanup branch name validation Kaartic Sivaraam
2017-09-20 4:20 ` Junio C Hamano
2017-09-20 12:04 ` Kaartic Sivaraam
2017-09-21 1:37 ` Junio C Hamano
2017-09-23 12:52 ` Kaartic Sivaraam
2017-09-20 14:52 ` Kaartic Sivaraam
2017-09-19 7:15 ` [RFC PATCH 4/5] branch: introduce dont_fail parameter for update validation Kaartic Sivaraam
2017-09-19 7:15 ` [RFC PATCH 5/5] builtin/branch: give more useful error messages when renaming Kaartic Sivaraam
2017-09-19 8:41 ` [RFC SAMPLE] " Kaartic Sivaraam
2017-09-19 9:33 ` Kaartic Sivaraam
2017-09-20 20:57 ` [RFC PATCH 5/5] " Stefan Beller
2017-09-23 10:50 ` Kaartic Sivaraam
2017-09-25 8:20 ` [RFC PATCH v2 0/5] Give more useful error messages when renaming a branch Kaartic Sivaraam
2017-09-25 8:20 ` [RFC PATCH v2 1/5] branch: improve documentation and naming of certain parameters Kaartic Sivaraam
2017-10-20 21:33 ` Stefan Beller
2017-10-20 21:51 ` Eric Sunshine
2017-10-21 2:32 ` Kaartic Sivaraam
2017-10-21 2:31 ` Kaartic Sivaraam
2017-09-25 8:20 ` [RFC PATCH v2 2/5] branch: re-order function arguments to group related arguments Kaartic Sivaraam
2017-10-20 21:50 ` Stefan Beller
2017-10-21 2:56 ` Kaartic Sivaraam
2017-10-23 19:32 ` Stefan Beller
2017-09-25 8:20 ` [RFC PATCH v2 3/5] branch: cleanup branch name validation Kaartic Sivaraam
2017-09-25 8:20 ` [RFC PATCH v2 4/5] branch: introduce dont_fail parameter for create validation Kaartic Sivaraam
2017-09-25 8:20 ` [RFC PATCH v2 5/5] builtin/branch: give more useful error messages when renaming Kaartic Sivaraam
2017-10-23 19:44 ` Stefan Beller
2017-10-24 3:37 ` Kaartic Sivaraam
2017-10-20 7:09 ` [RFC PATCH v2 0/5] Give more useful error messages when renaming a branch Kaartic Sivaraam
2017-10-20 18:58 ` Stefan Beller
2017-11-02 6:54 ` [RFC PATCH v3 0/4] give more useful error messages while renaming branch Kaartic Sivaraam
2017-11-02 6:54 ` [RFC PATCH v3 1/4] branch: improve documentation and naming of 'create_branch()' Kaartic Sivaraam
2017-11-02 6:54 ` [RFC PATCH v3 2/4] branch: re-order function arguments to group related arguments Kaartic Sivaraam
2017-11-06 2:06 ` Junio C Hamano
2017-11-12 13:27 ` Kaartic Sivaraam
2017-11-13 2:32 ` Junio C Hamano
2017-11-13 3:06 ` Kaartic Sivaraam
2017-11-02 6:54 ` [RFC PATCH v3 3/4] branch: introduce dont_fail parameter for branchname validation Kaartic Sivaraam
2017-11-02 8:39 ` Kaartic Sivaraam
2017-11-02 18:42 ` Stefan Beller
2017-11-03 2:58 ` Kaartic Sivaraam
2017-11-06 2:24 ` Junio C Hamano
2017-11-12 13:33 ` Kaartic Sivaraam
2017-11-02 6:54 ` [RFC PATCH v3 4/4] builtin/branch: give more useful error messages when renaming Kaartic Sivaraam
2017-11-02 14:21 ` Eric Sunshine
2017-11-03 2:41 ` Kaartic Sivaraam
2017-11-06 2:30 ` Junio C Hamano
2017-11-12 14:05 ` Kaartic Sivaraam
2017-11-12 18:23 ` Kevin Daudt
2017-11-13 2:31 ` Kaartic Sivaraam
2017-11-13 11:30 ` Kevin Daudt
2017-11-14 5:25 ` Kaartic Sivaraam
2017-11-18 17:26 ` [PATCH 0/4] cleanups surrounding branch Kaartic Sivaraam
2017-11-18 17:26 ` [PATCH 1/4] branch: improve documentation and naming of create_branch() parameters Kaartic Sivaraam
2017-11-18 17:26 ` [PATCH 2/4] branch: group related arguments of create_branch() Kaartic Sivaraam
2017-11-18 17:26 ` [PATCH 3/4] branch: update warning message shown when copying a misnamed branch Kaartic Sivaraam
2017-11-18 17:26 ` [PATCH 4/4] builtin/branch: strip refs/heads/ using skip_prefix Kaartic Sivaraam
2017-11-19 1:04 ` Eric Sunshine
2017-11-19 17:21 ` Kaartic Sivaraam
2017-11-19 18:06 ` Eric Sunshine
2017-11-29 3:46 ` [PATCH v4 " Kaartic Sivaraam
2017-12-01 5:59 ` [PATCH v5 " Kaartic Sivaraam
2017-12-04 4:29 ` SZEDER Gábor
2017-12-07 23:00 ` Junio C Hamano
2017-12-07 23:14 ` Junio C Hamano
2017-12-08 17:39 ` Kaartic Sivaraam
2018-03-10 15:54 ` [PATCH v4 0/3] give more useful error messages while renaming branch (reboot) Kaartic Sivaraam
2018-03-10 15:54 ` [PATCH v4 1/3] branch: introduce dont_fail parameter for branchname validation Kaartic Sivaraam
2018-03-15 20:27 ` Junio C Hamano
2018-03-16 18:12 ` Kaartic Sivaraam
2018-03-10 15:54 ` [PATCH v4 2/3] builtin/branch: give more useful error messages when renaming Kaartic Sivaraam
2018-03-15 20:33 ` Junio C Hamano
2018-03-24 17:09 ` Kaartic Sivaraam
2018-03-10 15:54 ` [PATCH v4 3/3] t/t3200: fix a typo in a test description Kaartic Sivaraam
2018-03-15 20:41 ` Junio C Hamano
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