https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109024
Jiang An <de34 at live dot cn> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |de34 at live dot cn --- Comment #1 from Jiang An <de34 at live dot cn> --- See https://cplusplus.github.io/LWG/issue3796. We need to implement the resolution.