//===----------------------------------------------------------------------===// // // The LLVM Compiler Infrastructure // // This file is dual licensed under the MIT and the University of Illinois Open // Source Licenses. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // class bad_optional_access : public logic_error #include #include int main() { #if _LIBCPP_STD_VER > 11 using std::experimental::bad_optional_access; static_assert(std::is_base_of::value, ""); static_assert(std::is_convertible::value, ""); #endif // _LIBCPP_STD_VER > 11 }