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* [Bug c/98397] New: C2X: pointers to arrays with qualifiers are now pointers to qualified types
@ 2020-12-19 23:03 muecker at gwdg dot de
2020-12-21 22:23 ` [Bug c/98397] " muecker at gwdg dot de
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: muecker at gwdg dot de @ 2020-12-19 23:03 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98397
Bug ID: 98397
Summary: C2X: pointers to arrays with qualifiers are now
pointers to qualified types
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: muecker at gwdg dot de
Target Milestone: ---
C2X mostly adopted the rules already implemented in GCC as an extension.
Still, there are two issues:
1. Some pedantic warning should not appear anymore in C2X.
2. The qualifier of a void pointer returned by the tertiary
operator changes in C2X when the one of the pointers points
to an array with qualified type. (This is then also consistent
with C++ and clang)
The following code should compile:
void foo(void)
{
const int (*u)[1];
void *v;
extern const void *vc;
extern typeof(1 ? u : v) vc;
extern typeof(1 ? v : u) vc;
}
I have a patch for this in preparation.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/98397] C2X: pointers to arrays with qualifiers are now pointers to qualified types
2020-12-19 23:03 [Bug c/98397] New: C2X: pointers to arrays with qualifiers are now pointers to qualified types muecker at gwdg dot de
@ 2020-12-21 22:23 ` muecker at gwdg dot de
2021-08-22 22:15 ` cvs-commit at gcc dot gnu.org
2021-08-22 22:18 ` muecker at gwdg dot de
2 siblings, 0 replies; 4+ messages in thread
From: muecker at gwdg dot de @ 2020-12-21 22:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98397
--- Comment #1 from Martin Uecker <muecker at gwdg dot de> ---
PATCH: https://gcc.gnu.org/pipermail/gcc-patches/2020-December/562359.html
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/98397] C2X: pointers to arrays with qualifiers are now pointers to qualified types
2020-12-19 23:03 [Bug c/98397] New: C2X: pointers to arrays with qualifiers are now pointers to qualified types muecker at gwdg dot de
2020-12-21 22:23 ` [Bug c/98397] " muecker at gwdg dot de
@ 2021-08-22 22:15 ` cvs-commit at gcc dot gnu.org
2021-08-22 22:18 ` muecker at gwdg dot de
2 siblings, 0 replies; 4+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-08-22 22:15 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98397
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Uecker <uecker@gcc.gnu.org>:
https://gcc.gnu.org/g:972eab51f53d1db26864ec7d62d40c2ff83407ec
commit r12-3060-g972eab51f53d1db26864ec7d62d40c2ff83407ec
Author: Martin Uecker <muecker@gwdg.de>
Date: Sun Aug 22 23:47:58 2021 +0200
Correct treatment of qualifiers for pointers to arrays for C2X [PR98397]
2021-08-22 Martin Uecker <muecker@gwdg.de>
gcc/c/
PR c/98397
* c-typeck.c (comp_target_types): Change pedwarn to pedwarn_c11
for pointers to arrays with qualifiers.
(build_conditional_expr): For C23 don't lose qualifiers for
pointers
to arrays when the other pointer is a void pointer. Update
warnings.
(convert_for_assignment): Update warnings for C2X when converting
from
void* with qualifiers to a pointer to array with the same
qualifiers.
gcc/testsuite/
PR c/98397
* gcc.dg/c11-qual-1.c: New test.
* gcc.dg/c2x-qual-1.c: New test.
* gcc.dg/c2x-qual-2.c: New test.
* gcc.dg/c2x-qual-3.c: New test.
* gcc.dg/c2x-qual-4.c: New test.
* gcc.dg/c2x-qual-5.c: New test.
* gcc.dg/c2x-qual-6.c: New test.
* gcc.dg/c2x-qual-7.c: New test.
* gcc.dg/pointer-array-quals-1.c: Remove unnecessary flag.
* gcc.dg/pointer-array-quals-2.c: Remove unnecessary flag.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/98397] C2X: pointers to arrays with qualifiers are now pointers to qualified types
2020-12-19 23:03 [Bug c/98397] New: C2X: pointers to arrays with qualifiers are now pointers to qualified types muecker at gwdg dot de
2020-12-21 22:23 ` [Bug c/98397] " muecker at gwdg dot de
2021-08-22 22:15 ` cvs-commit at gcc dot gnu.org
@ 2021-08-22 22:18 ` muecker at gwdg dot de
2 siblings, 0 replies; 4+ messages in thread
From: muecker at gwdg dot de @ 2021-08-22 22:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98397
Martin Uecker <muecker at gwdg dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Martin Uecker <muecker at gwdg dot de> ---
Fixed on master.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2020-12-19 23:03 [Bug c/98397] New: C2X: pointers to arrays with qualifiers are now pointers to qualified types muecker at gwdg dot de
2020-12-21 22:23 ` [Bug c/98397] " muecker at gwdg dot de
2021-08-22 22:15 ` cvs-commit at gcc dot gnu.org
2021-08-22 22:18 ` muecker at gwdg dot de
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