https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116440
--- Comment #4 from Tiancheng Yu <tianchengyu at tencent dot com> --- on clang 18.1, works with both libstdc++ (from GCC 13.2.0) and libc++. on clang trunk, works with libc++ (trunk) but not libstdc++ (trunk).
