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 // <future>
11 
12 // class packaged_task<R(ArgTypes...)>
13 // template <class F>
14 //   packaged_task(F&& f);
15 // These constructors shall not participate in overload resolution if
16 //    decay<F>::type is the same type as std::packaged_task<R(ArgTypes...)>.
17 
18 #include <future>
19 #include <cassert>
20 
21 struct A {};
22 typedef std::packaged_task<A(int, char)> PT;
23 typedef volatile std::packaged_task<A(int, char)> VPT;
24 
25 
26 int main()
27 {
28     PT p { VPT{} };
29 }
30