From: Martin Uecker <muecker@gwdg.de>
To: Vincent Mailhol <vincent.mailhol@gmail.com>
Cc: David Laight <David.Laight@aculab.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Luc Van Oostenryck <luc.vanoostenryck@gmail.com>,
Nathan Chancellor <nathan@kernel.org>,
"Nick Desaulniers" <ndesaulniers@google.com>,
Bill Wendling <morbo@google.com>,
Justin Stitt <justinstitt@google.com>,
Yury Norov <yury.norov@gmail.com>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
Kees Cook <kees@kernel.org>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
Jani Nikula <jani.nikula@linux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@intel.com>,
Tvrtko Ursulin <tursulin@ursulin.net>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Mike Leach <mike.leach@linaro.org>,
James Clark <james.clark@linaro.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Rikard Falkeborn <rikard.falkeborn@gmail.com>,
"linux-sparse@vger.kernel.org" <linux-sparse@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"llvm@lists.linux.dev" <llvm@lists.linux.dev>,
"linux-hardening@vger.kernel.org"
<linux-hardening@vger.kernel.org>,
"intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
"coresight@lists.linaro.org" <coresight@lists.linaro.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH 02/10] compiler.h: add is_const() as a replacement of __is_constexpr()
Date: Sat, 7 Dec 2024 16:10:31 +0100 [thread overview]
Message-ID: <b3bd6d4ef485dbb5db4c784f4e42f76adce502dc.camel@gwdg.de> (raw)
In-Reply-To: <CAMZ6RqL+iS6GVsY20=O6GdQakRpp7XdewZJsUbmE5OCsKaHR6Q@mail.gmail.com>
Am Samstag, dem 07.12.2024 um 22:50 +0900 schrieb Vincent Mailhol:
> On Sat. 7 Dec. 2024 à 22:19, Martin Uecker <muecker@gwdg.de> wrote:
> >
...
>
> I was invited to WG14 this September. For now, I am only lurking. The
> thing I have in mind right now is to write a paper to allow the use of
> static_assert() in expressions (i.e. make it return 0 on success).
> That should be a relatively small change, but would bring a nice
> quality of life improvement.
>
> For context, look at this:
>
> https://lore.kernel.org/all/CAHk-=wjLSEcZ5LdW+3C+9rtjvNPHZT6zdk0POj67T5k2ZpDbgA@mail.gmail.com/T/#m1ba33a804b4041154b72a1d0333f90ec7204c461
What one can do is put it into a structure.
#define const_assert(x) \
(sizeof(struct { _Static_assert(x, ""); }))
but yeah, also a hack to work around a limitation of the standard
feature.
Martin
next prev parent reply other threads:[~2024-12-07 15:10 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-02 17:33 [PATCH 00/10] compiler.h: refactor __is_constexpr() into is_const{,_true,_false}() Vincent Mailhol via B4 Relay
2024-12-02 17:33 ` [PATCH 01/10] compiler.h: add statically_false() Vincent Mailhol via B4 Relay
2024-12-04 18:30 ` David Laight
2024-12-05 15:25 ` Vincent Mailhol
2024-12-06 3:39 ` David Laight
2024-12-06 4:42 ` Vincent Mailhol
2024-12-02 17:33 ` [PATCH 02/10] compiler.h: add is_const() as a replacement of __is_constexpr() Vincent Mailhol via B4 Relay
2024-12-04 18:39 ` David Laight
2024-12-04 21:20 ` Yury Norov
2024-12-05 15:31 ` Vincent Mailhol
2024-12-06 2:25 ` David Laight
2024-12-06 6:14 ` Linus Torvalds
2024-12-06 7:19 ` Vincent Mailhol
2024-12-06 8:49 ` Vincent Mailhol
2024-12-06 8:29 ` Martin Uecker
2024-12-06 18:30 ` Vincent Mailhol
2024-12-06 18:52 ` Linus Torvalds
2024-12-06 19:02 ` Linus Torvalds
2024-12-06 19:06 ` David Laight
2024-12-06 19:15 ` Linus Torvalds
2024-12-06 19:38 ` Willy Tarreau
2024-12-06 19:43 ` David Laight
2024-12-06 19:38 ` David Laight
2024-12-06 20:23 ` David Laight
2024-12-07 7:42 ` Vincent Mailhol
2024-12-07 11:19 ` David Laight
2024-12-07 12:24 ` Vincent Mailhol
2024-12-07 18:19 ` Linus Torvalds
2024-12-07 19:51 ` Martin Uecker
2024-12-07 20:31 ` Linus Torvalds
2024-12-07 20:54 ` David Laight
2024-12-07 21:00 ` David Laight
2024-12-07 21:06 ` Martin Uecker
2024-12-07 21:45 ` David Laight
2024-12-09 9:59 ` Rasmus Villemoes
2024-12-06 6:40 ` Martin Uecker
2024-12-06 7:26 ` Vincent Mailhol
2024-12-07 8:39 ` Martin Uecker
2024-12-07 10:33 ` David Laight
2024-12-07 13:07 ` Martin Uecker
2024-12-07 18:26 ` Linus Torvalds
2024-12-07 19:19 ` Martin Uecker
2024-12-07 20:28 ` Linus Torvalds
2024-12-07 23:52 ` Martin Uecker
2024-12-08 1:58 ` Linus Torvalds
2024-12-08 9:18 ` Martin Uecker
2024-12-08 11:26 ` David Laight
2024-12-08 12:38 ` Martin Uecker
2024-12-08 16:48 ` David Laight
2024-12-08 18:10 ` Martin Uecker
2024-12-08 19:05 ` Linus Torvalds
2024-12-07 12:45 ` Vincent Mailhol
2024-12-07 13:18 ` Martin Uecker
2024-12-07 13:50 ` Vincent Mailhol
2024-12-07 14:59 ` Martin Uecker
2024-12-07 15:10 ` Martin Uecker [this message]
2024-12-07 15:23 ` Vincent Mailhol
2024-12-07 18:07 ` David Laight
2024-12-06 9:34 ` David Laight
2024-12-02 17:33 ` [PATCH 03/10] compiler.h: add is_const_true() and is_const_false() Vincent Mailhol via B4 Relay
2024-12-04 18:48 ` David Laight
2024-12-05 15:48 ` Vincent Mailhol
2024-12-02 17:33 ` [PATCH 04/10] linux/bits.h: simplify GENMASK_INPUT_CHECK() by using is_const_true() Vincent Mailhol via B4 Relay
2024-12-04 18:52 ` David Laight
2024-12-05 15:49 ` Vincent Mailhol
2024-12-02 17:33 ` [PATCH 05/10] minmax: simplify __clamp_once() by using is_const_false() Vincent Mailhol via B4 Relay
2024-12-04 18:54 ` David Laight
2024-12-05 15:52 ` Vincent Mailhol
2024-12-09 12:32 ` Vincent Mailhol
2024-12-02 17:33 ` [PATCH 06/10] fortify: replace __is_constexpr() by is_const() in strlen() Vincent Mailhol via B4 Relay
2024-12-04 18:58 ` David Laight
2024-12-05 15:53 ` Vincent Mailhol
2024-12-02 17:33 ` [PATCH 07/10] overflow: replace __is_constexpr() by is_const() Vincent Mailhol via B4 Relay
2024-12-02 17:33 ` [PATCH 08/10] drm/i915/reg: replace __is_const_expr() by is_const_true() or is_const() Vincent Mailhol via B4 Relay
2024-12-04 19:00 ` David Laight
2024-12-05 15:56 ` Vincent Mailhol
2024-12-02 17:33 ` [PATCH 09/10] coresight: etm4x: replace __is_const_expr() by is_const() Vincent Mailhol via B4 Relay
2024-12-02 17:33 ` [PATCH 10/10] compiler.h: remove __is_constexpr() Vincent Mailhol via B4 Relay
2024-12-04 23:58 ` [PATCH 00/10] compiler.h: refactor __is_constexpr() into is_const{,_true,_false}() Kees Cook
2024-12-05 15:21 ` Vincent Mailhol
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