[Bug c++/85548] Zero-initialization of padding bits of an aggregate class (class A) member of a non-aggregate class (class B) is not performed when B is value-initialized.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85548 --- Comment #4 from Jonathan Wakely --- __builtin_clear_padding is for libstdc++ to clear padding bits in arbitrary trivially-copyable objects, it's not useful here because the compiler should be doing it automatically.

[Bug c++/85548] Zero-initialization of padding bits of an aggregate class (class A) member of a non-aggregate class (class B) is not performed when B is value-initialized.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85548 Andrew Pinski changed: What|Removed |Added Last reconfirmed|2018-11-22 00:00:00 |2021-11-8 --- Comment #3 from Andrew

[Bug c++/85548] Zero-initialization of padding bits of an aggregate class (class A) member of a non-aggregate class (class B) is not performed when B is value-initialized.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85548 Jonathan Wakely changed: What|Removed |Added Keywords||wrong-code

[Bug c++/85548] Zero-initialization of padding bits of an aggregate class (class A) member of a non-aggregate class (class B) is not performed when B is value-initialized.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85548 --- Comment #1 from Richard Biener --- Why do you think padding should be initialized in any way?