https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110343
--- Comment #6 from Ed Smith-Rowland <emsr at gcc dot gnu.org> --- Created attachment 57019 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57019&action=edit Add a flag to only allow new chars in c++26. Here s a patch that adds and checks a flag in libcpp and also adds a test. If you have a better idea for the flag name let me know.
