https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96980
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- This is not valid C++, that's why GCC doesn't accept it.
- [Bug c++/96980] New: unimplemented of v... tangyixuan at mail dot dlut.edu.cn
- [Bug c++/96980] unimplemented of v... redi at gcc dot gnu.org
