https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94013
--- Comment #4 from fdlbxtqi <euloanty at live dot com> --- I noticed LLVM's libc++ has the same issue when I did the test to libstdc++. However, their bug reporting port has closed. How can I report that? It is amazing that two mainstream C++ standard library implementations create the same bug here.