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Type: Task
Resolution: Fixed
Priority: P3: Somewhat important
Fix Version/s: 6.2.5, 6.3.1, 6.4.0 Beta1
Affects Version/s: None
Component/s: Core: Containers and Algorithms, QML: Declarative and Javascript Engine, Testing: qtestlib, WebEngine
Labels:
- Janitorial

Story Points:
2
Commits:
277c23956c (qt/qtbase/dev) 277c23956c (qt/tqtc-qtbase/dev) 53173a493b (qt/qtbase/6.3) 53173a493b (qt/tqtc-qtbase/6.3) 6f5d6373c9 (qt/tqtc-qtbase/6.2), a8df9a20a (tqtc/lts-6.2)
Sprint:
Team B Foundation Sprint 56

See https://github.com/cplusplus/papers/issues/197 and wg21.link/p1413

Suggested replacements:

struct { alignas(T) unsigned char data[sizeof(T)]; } x;
// or
union { char dummy; T t; } x;

is duplicated by

QTBUG-107569 Use of std::aligned_union and std::aligned_union_t deprecated in C++23

Closed

split to

QTBUG-103321 Update Catch2 once https://github.com/catchorg/Catch2/issues/2419 is fixed

Closed

- Issue Only
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For Gerrit Dashboard: QTBUG-99122
#	Subject	Branch	Project	Status	CR	V
386420,2	QVarLengthArray: avoid std::aligned_storage (deprecated in C++23)	dev	qt/qtbase	Status: MERGED	+2	0
386463,7	QGlobalStatic: don't use a std::aligned_union if we can be a union	dev	qt/qtbase	Status: MERGED	+2	0
386487,2	QVarLengthArray: avoid std::aligned_storage (deprecated in C++23)	6.3	qt/qtbase	Status: MERGED	+2	0
386488,3	QVarLengthArray: avoid std::aligned_storage (deprecated in C++23)	6.2	qt/qtbase	Status: MERGED	+2	0
386923,2	QGlobalStatic: don't use a std::aligned_union if we can be a union	6.3	qt/qtbase	Status: MERGED	+2	0
388250,2	QRandom: remove dead pre-C++11 code	dev	qt/qtbase	Status: MERGED	+2	0
388533,2	QRandom: remove dead pre-C++11 code	6.3	qt/qtbase	Status: MERGED	+2	0
410161,3	qv4string: port away from std::aligned_storage	dev	qt/qtdeclarative	Status: MERGED	+2	0
410162,2	QHash: port away from std::aligned_storage	dev	qt/qtbase	Status: MERGED	+2	0
410163,2	QRandomGenerator: port away from std::aligned_storage	dev	qt/qtbase	Status: MERGED	-1	0
410164,4	tst_qobjectrace: fix potential UB (something with pointers and new)	dev	qt/qtbase	Status: MERGED	+2	0
410165,1	tst_QObjectRace: port away from std::aligned_storage	dev	qt/qtbase	Status: ABANDONED	0	0
410197,2	QHash: port away from std::aligned_storage	6.3	qt/qtbase	Status: MERGED	+2	0
410198,2	QRandomGenerator: port away from std::aligned_storage	6.3	qt/qtbase	Status: MERGED	+2	0
410199,2	tst_qobjectrace: fix potential UB (something with pointers and new)	6.3	qt/qtbase	Status: MERGED	+2	0
410200,2	QHash: port away from std::aligned_storage	tqtc/lts-6.2	qt/tqtc-qtbase	Status: MERGED	+2	0
410201,2	QRandomGenerator: port away from std::aligned_storage	tqtc/lts-6.2	qt/tqtc-qtbase	Status: MERGED	+2	0
410202,2	tst_qobjectrace: fix potential UB (something with pointers and new)	tqtc/lts-6.2	qt/tqtc-qtbase	Status: MERGED	+2	0
410399,2	qv4string: port away from std::aligned_storage	6.3	qt/qtdeclarative	Status: MERGED	+2	0
410402,2	qv4string: port away from std::aligned_storage	tqtc/lts-6.2	qt/tqtc-qtdeclarative	Status: MERGED	+2	0
438472,2	QV4::Heap::SharedArrayBuffer: avoid std::aligned_storage (deprecated in C++23)	dev	qt/qtdeclarative	Status: MERGED	+2	0
438476,2	Update Catch2 to v2.13.10	dev	qt/qtbase	Status: MERGED	+2	0
438477,3	Update Catch2 to v2.13.10	dev	qt/qttools	Status: MERGED	+2	0
438480,4	QApplicationStatic: avoid use of std::aligned_union	dev	qt/qtbase	Status: MERGED	+2	0
438579,2	Update Catch2 to v2.13.10	6.4	qt/qttools	Status: MERGED	+2	0
438582,2	QV4::Heap::SharedArrayBuffer: avoid std::aligned_storage (deprecated in C++23)	6.4	qt/qtdeclarative	Status: MERGED	+2	0
438584,3	QV4::Heap::SharedArrayBuffer: avoid std::aligned_storage (deprecated in C++23)	tqtc/lts-6.2	qt/tqtc-qtdeclarative	Status: MERGED	+2	0
438585,2	Update Catch2 to v2.13.10	6.4	qt/qtbase	Status: MERGED	+2	0
438586,2	Update Catch2 to v2.13.10	tqtc/lts-6.2	qt/tqtc-qtbase	Status: MERGED	+2	0
438729,2	QApplicationStatic: avoid use of std::aligned_union	6.4	qt/qtbase	Status: MERGED	+2	0