[Bug c++/124275] GCC rejects trivially copying a non-constexpr class object containing nullptr_t in constant initialization

[de34 at live dot cn]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124275

--- Comment #1 from Jiang An <de34 at live dot cn> ---
Reports for MSVC and EDG (unfortunately not acceptable for GCC Bugzilla's See
Also):
- https://developercommunity.visualstudio.com/t/11051433
- https://developercommunity.visualstudio.com/t/11051434