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From: Alejandro Colomar <alx.manpages@gmail.com>
To: Martin Uecker <uecker@tugraz.at>
Cc: Ingo Schwarze <schwarze@usta.de>,
	JeanHeyd Meneide <wg14@soasis.org>,
	linux-man@vger.kernel.org, gcc@gcc.gnu.org
Subject: Re: [PATCH] Various pages: SYNOPSIS: Use VLA syntax in function parameters
Date: Mon, 5 Sep 2022 16:31:56 +0200	[thread overview]
Message-ID: <da301fda-5319-dff0-23c2-c56bdf35105a@gmail.com> (raw)
In-Reply-To: <d9865e28-fc81-9878-769b-471652a8be94@gmail.com>


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Hi Martin,

On 9/3/22 22:02, Alejandro Colomar wrote:
>>>> We thought about using this syntax
>>>>
>>>> int foo(char buf[.n], int n);

BTW, it would be useful if this syntax was accepted for void * too, 
especially since GNU C allows pointer arithmetic on void *.

     void *memmove(void dest[.n], const void src[.n], size_t n);

I understand that a void array doesn't make sense, so defining a VLA of 
type void is an error elsewhere, but since array parameters are not 
really arrays, and instead pointers, this could be reasonable.

The same that these "arrays" can have zero sizes, or even negative ones 
in some weird cases.

Cheers,

Alex

-- 
Alejandro Colomar
<http://www.alejandro-colomar.es/>

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  reply	other threads:[~2022-09-05 14:32 UTC|newest]

Thread overview: 85+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-26 21:07 [PATCH] Various pages: SYNOPSIS: Use VLA syntax in function parameters Alejandro Colomar
2022-08-27 11:10 ` Ingo Schwarze
2022-08-27 12:15   ` Alejandro Colomar
2022-08-27 13:08     ` Ingo Schwarze
2022-08-27 18:38       ` Alejandro Colomar
2022-08-28 11:24         ` Alejandro Colomar
     [not found]           ` <CACqA6+mfaj6Viw+LVOG=nE350gQhCwVKXRzycVru5Oi4EJzgTg@mail.gmail.com>
2022-09-02 21:02             ` Alejandro Colomar
2022-09-02 21:57               ` Alejandro Colomar
2022-09-03 12:47                 ` Martin Uecker
2022-09-03 13:29                   ` Ingo Schwarze
2022-09-03 15:08                     ` Alejandro Colomar
2022-09-03 13:41                   ` Alejandro Colomar
2022-09-03 14:35                     ` Martin Uecker
2022-09-03 14:59                       ` Alejandro Colomar
2022-09-03 15:31                         ` Martin Uecker
2022-09-03 20:02                           ` Alejandro Colomar
2022-09-05 14:31                             ` Alejandro Colomar [this message]
2022-11-10  0:06                           ` Alejandro Colomar
2022-11-10  0:09                             ` Alejandro Colomar
2022-11-10  1:33                             ` Joseph Myers
2022-11-10  1:39                               ` Joseph Myers
2022-11-10  6:21                                 ` Martin Uecker
2022-11-10 10:09                                   ` Alejandro Colomar
2022-11-10 23:19                                   ` Joseph Myers
2022-11-10 23:28                                     ` Alejandro Colomar
2022-11-11 19:52                                     ` Martin Uecker
2022-11-12  1:09                                       ` Joseph Myers
2022-11-12  7:24                                         ` Martin Uecker
2022-11-12 12:34                                     ` Alejandro Colomar
2022-11-12 12:46                                       ` Alejandro Colomar
2022-11-12 13:03                                       ` Joseph Myers
2022-11-12 13:40                                         ` Alejandro Colomar
2022-11-12 13:58                                           ` Alejandro Colomar
2022-11-12 14:54                                           ` Joseph Myers
2022-11-12 15:35                                             ` Alejandro Colomar
2022-11-12 17:02                                               ` Joseph Myers
2022-11-12 17:08                                                 ` Alejandro Colomar
2022-11-12 15:56                                             ` Martin Uecker
2022-11-13 13:19                                               ` Alejandro Colomar
2022-11-13 13:33                                                 ` Alejandro Colomar
2022-11-13 14:02                                                   ` Alejandro Colomar
2022-11-13 14:58                                                     ` Martin Uecker
2022-11-13 15:15                                                       ` Alejandro Colomar
2022-11-13 15:32                                                         ` Martin Uecker
2022-11-13 16:25                                                           ` Alejandro Colomar
2022-11-13 16:28                                                         ` Alejandro Colomar
2022-11-13 16:31                                                           ` Alejandro Colomar
2022-11-13 16:34                                                             ` Alejandro Colomar
2022-11-13 16:56                                                               ` Alejandro Colomar
2022-11-13 19:05                                                                 ` Alejandro Colomar
2022-11-14 18:13                                                           ` Joseph Myers
2022-11-28 22:59                                                             ` Alex Colomar
2022-11-28 23:18                                                       ` Alex Colomar
2022-11-29  0:05                                                         ` Joseph Myers
2022-11-29 14:58                                                         ` Michael Matz
2022-11-29 15:17                                                           ` Uecker, Martin
2022-11-29 15:44                                                             ` Michael Matz
2022-11-29 16:58                                                               ` Uecker, Martin
2022-11-29 17:28                                                                 ` Alex Colomar
2022-11-29 16:49                                                           ` Joseph Myers
2022-11-29 16:53                                                             ` Jonathan Wakely
2022-11-29 17:00                                                               ` Martin Uecker
2022-11-29 17:19                                                                 ` Alex Colomar
2022-11-29 17:29                                                                   ` Alex Colomar
2022-12-03 21:03                                                                     ` Alejandro Colomar
2022-12-03 21:13                                                                       ` Andrew Pinski
2022-12-03 21:15                                                                       ` Martin Uecker
2022-12-03 21:18                                                                         ` Alejandro Colomar
2022-12-06  2:08                                                                       ` Joseph Myers
2022-11-14 17:52                                                 ` Joseph Myers
2022-11-14 17:57                                                   ` Alejandro Colomar
2022-11-14 18:26                                                     ` Joseph Myers
2022-11-28 23:02                                                       ` Alex Colomar
2022-11-10  9:40                             ` G. Branden Robinson
2022-11-10 10:59                               ` Alejandro Colomar
2022-11-10 17:47                                 ` Alejandro Colomar
2022-11-10 18:04                                   ` MR macro 4th argument (was: [PATCH] Various pages: SYNOPSIS: Use VLA syntax in function parameters) Alejandro Colomar
2022-11-10 18:11                                     ` Alejandro Colomar
2022-11-10 18:20                                       ` Alejandro Colomar
2022-11-10 19:37                                     ` Alejandro Colomar
2022-11-10 20:41                                       ` Alejandro Colomar
2022-11-10 22:55                                     ` G. Branden Robinson
2022-11-10 23:55                                       ` Alejandro Colomar
2022-11-11  4:44                                         ` G. Branden Robinson
2022-11-10 22:25                                 ` [PATCH] Various pages: SYNOPSIS: Use VLA syntax in function parameters G. Branden Robinson

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