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 // UNSUPPORTED: c++98, c++03, c++11
11 
12 // <experimental/functional>
13 //
14 //  has to include <functional>
15 
16 #include <experimental/functional>
17 
main()18 int main()
19 {
20   std::function<int(int)> x;
21 }
22