209   opts->x_flag_exceptions = c_dialect_cxx ();  in c_common_init_options_struct()
210   opts->x_warn_pointer_arith = c_dialect_cxx ();  in c_common_init_options_struct()
211   opts->x_warn_write_strings = c_dialect_cxx ();  in c_common_init_options_struct()
229   parse_in = cpp_create_reader (c_dialect_cxx () ? CLK_GNUCXX: CLK_GNUC89,  in c_common_init_options()
260   if (c_dialect_cxx ())  in c_common_init_options()
402       if (!c_dialect_cxx ())  in c_common_handle_option()
427       if (!c_dialect_cxx ())  in c_common_handle_option()
796 			   std_inc, std_cxx_inc && c_dialect_cxx (), verbose);  in c_common_post_options()
806   if (c_dialect_cxx ())  in c_common_post_options()
820       && !c_dialect_cxx ()  in c_common_post_options()
831       && !c_dialect_cxx ()  in c_common_post_options()
866   if (c_dialect_cxx ())  in c_common_post_options()
874     warn_main = (c_dialect_cxx () && flag_hosted) ? 1 : 0;  in c_common_post_options()
882     warn_enum_compare = c_dialect_cxx () ? 1 : 0;  in c_common_post_options()
1026   if (c_dialect_cxx ()  in c_common_post_options()
1055   if (warn_return_type == -1 && c_dialect_cxx ())  in c_common_post_options()
1387 			&& (c_dialect_cxx () ? cxx_dialect == cxx98 : !flag_isoc99));  in sanitize_cpp_opts()