https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115715
Xi Ruoyao <xry111 at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |xry111 at gcc dot gnu.org --- Comment #1 from Xi Ruoyao <xry111 at gcc dot gnu.org> --- Per https://eel.is/c++draft/temp.res#general-6.6 no diagnostic is required. I.e. the compiler may generate a diagnostic, or not. Thus "a difference between Clang and GCC" does not mean GCC have a bug.