https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109260
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- https://gcc.gnu.org/onlinedocs/gnat_ugn/Interfacing-with-C_002b_002b-at-the-Class-Level.html#Interfacing-with-C_002b_002b-at-the-Class-Level