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* [Bug c++/115417] New: Destructor is noexcept even though the class has a throwing destructor subobject in an anonymous union
@ 2024-06-10 16:33 janschultke at googlemail dot com
2024-06-10 16:35 ` [Bug c++/115417] " pinskia at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: janschultke at googlemail dot com @ 2024-06-10 16:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115417
Bug ID: 115417
Summary: Destructor is noexcept even though the class has a
throwing destructor subobject in an anonymous union
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: janschultke at googlemail dot com
Target Milestone: ---
Consider the following code:
#include <type_traits>
struct D {
~D() noexcept(false);
};
struct B {
union {
char c;
D d;
};
~B() {}
};
static_assert(std::is_nothrow_destructible_v<B>);
This assertion passes only for GCC, but not for other compilers
(https://godbolt.org/z/e5jEKzjfs).
I believe GCC is wrong because 'd' is a potentially constructed subobject of B
(https://eel.is/c++draft/except.spec#8) and therefore, a destructor without a
noexcept-specifier should be potentially throwing.
This bug could be related to
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109768, but I don't think it is a
duplicate.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/115417] Destructor is noexcept even though the class has a throwing destructor subobject in an anonymous union
2024-06-10 16:33 [Bug c++/115417] New: Destructor is noexcept even though the class has a throwing destructor subobject in an anonymous union janschultke at googlemail dot com
@ 2024-06-10 16:35 ` pinskia at gcc dot gnu.org
2024-06-10 16:36 ` pinskia at gcc dot gnu.org
2024-06-10 16:37 ` pinskia at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-06-10 16:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115417
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 115222.
*** This bug has been marked as a duplicate of bug 115222 ***
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/115417] Destructor is noexcept even though the class has a throwing destructor subobject in an anonymous union
2024-06-10 16:33 [Bug c++/115417] New: Destructor is noexcept even though the class has a throwing destructor subobject in an anonymous union janschultke at googlemail dot com
2024-06-10 16:35 ` [Bug c++/115417] " pinskia at gcc dot gnu.org
@ 2024-06-10 16:36 ` pinskia at gcc dot gnu.org
2024-06-10 16:37 ` pinskia at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-06-10 16:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115417
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note it is not just anonymous unions, it is all unions.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/115417] Destructor is noexcept even though the class has a throwing destructor subobject in an anonymous union
2024-06-10 16:33 [Bug c++/115417] New: Destructor is noexcept even though the class has a throwing destructor subobject in an anonymous union janschultke at googlemail dot com
2024-06-10 16:35 ` [Bug c++/115417] " pinskia at gcc dot gnu.org
2024-06-10 16:36 ` pinskia at gcc dot gnu.org
@ 2024-06-10 16:37 ` pinskia at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-06-10 16:37 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115417
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Resolution|DUPLICATE |---
Status|RESOLVED |NEW
Last reconfirmed| |2024-06-10
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=115222
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Actually let's reopen this for a second since of
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115222#c4 .
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2024-06-10 16:37 UTC | newest]
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2024-06-10 16:33 [Bug c++/115417] New: Destructor is noexcept even though the class has a throwing destructor subobject in an anonymous union janschultke at googlemail dot com
2024-06-10 16:35 ` [Bug c++/115417] " pinskia at gcc dot gnu.org
2024-06-10 16:36 ` pinskia at gcc dot gnu.org
2024-06-10 16:37 ` pinskia at gcc dot gnu.org
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