https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125200
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- The plugin doesn't have a deep knowledge of the standard, it just searches names in std namespace and its subnamespaces (with the exception of implementation namespace names (both namespaces unless inline namespaces, or other declarations) and compares those to what the std.cc module exports and reports what should be added to std.cc.
