https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98802
--- Comment #1 from Net Can <netcan1996 at gmail dot com> --- g++ -std=c++17 work on but not work on -std=c++2a.
netcan1996 at gmail dot com via Gcc-bugs Sat, 23 Jan 2021 04:12:02 -0800
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98802
--- Comment #1 from Net Can <netcan1996 at gmail dot com> --- g++ -std=c++17 work on but not work on -std=c++2a.