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 // UNSUPPORTED: c++98, c++03
12
13 // <future>
14
15 // class packaged_task<R(ArgTypes...)>
16
17 // packaged_task();
18
19 #include <future>
20 #include <cassert>
21
22 struct A {};
23
main()24 int main()
25 {
26 std::packaged_task<A(int, char)> p;
27 assert(!p.valid());
28 }
29