[Bug c++/86306] Initializing atomic qualified type with another atomic qualified type leads to assertion failure

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86306

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
_Atomic is a C keyword, it is not part of C++.

Clang++ accepts it as a non-standard extension. GCC ddoes not accept it,
because it's not part of C++.

If you don't understand what this means, stop filing bugs.