https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105118
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> --- I think currently libstdc++ also implements P2549R0 (https://wg21.link/p2549r0). Let's suspend the issue until whether P2549R0 is accepted or rejected is determined.