1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <optional>
11 
12 // class bad_optional_access is default constructible
13 
14 #include <experimental/optional>
15 #include <type_traits>
16 
main()17 int main()
18 {
19 #if _LIBCPP_STD_VER > 11
20     using std::experimental::bad_optional_access;
21     bad_optional_access ex;
22 #endif  // _LIBCPP_STD_VER > 11
23 }
24