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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/102502] C11: _Static_assert disallows const int operand in -O0 while allows it in higher -O
Date: Mon, 27 Sep 2021 20:54:05 +0000	[thread overview]
Message-ID: <bug-102502-4-GLNkiqdmwP@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-102502-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102502

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #2)
> Why do you think it is a bug?

Because there were other bugs which were fixed where there was an
inconsistency, PR 66618, and PR 71983 for an example. There are others.

Oh there is an inconsistency when the _Static_assert is not in a function vs
inside a function.
Take:
static const int allocation_size = 32768;
_Static_assert (allocation_size, "");
void f(void) { _Static_assert(allocation_size, ""); }

The assert inside the function is accepted at -O1 but reject at -O0 while the
one outside is always rejected.

  parent reply	other threads:[~2021-09-27 20:54 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-27 18:35 [Bug c/102502] New: " i at maskray dot me
2021-09-27 18:41 ` [Bug c/102502] " pinskia at gcc dot gnu.org
2021-09-27 18:55 ` jakub at gcc dot gnu.org
2021-09-27 19:53 ` i at maskray dot me
2021-09-27 20:54 ` pinskia at gcc dot gnu.org [this message]
2021-09-27 21:05 ` jakub at gcc dot gnu.org

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