1*67e74705SXin Li // RUN: %clang_cc1 -std=c++11 -verify %s 2*67e74705SXin Li 3*67e74705SXin Li // expected-no-diagnostics 4*67e74705SXin Li enum class E : int const volatile { }; 5*67e74705SXin Li using T = __underlying_type(E); 6*67e74705SXin Li using T = int; 7