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: libcpp-has-no-threads
11
12 // <future>
13
14 // class packaged_task<R(ArgTypes...)>
15
16 // packaged_task();
17
18 #include <future>
19 #include <cassert>
20
21 struct A {};
22
main()23 int main()
24 {
25 std::packaged_task<A(int, char)> p;
26 assert(!p.valid());
27 }
28