https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85282
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Rustam Abdullaev from comment #5) > (In reply to Jonathan Wakely from comment #3) > > https://wg21.link/cwg727 > > > > N.B. this is a C++17 feature that does not seem to have been approved as a > > DR, but Clang supports it in all language modes. > > > CWG 727 says "Adopted at the February/March, 2017 meeting", and > [temp.class.spec]/5 in ISO/IEC 14882:2017(E) is reflecting the new wording. > So this is in C++17. The defect is on GCC side. Yes. That's what I said. But it's not a DR, so it only applies to C++17 and not C++14 or older standards.
