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
14 // packaged_task();
15
16 #include <future>
17 #include <cassert>
18
19 struct A {};
20
main()21 int main()
22 {
23 std::packaged_task<A(int, char)> p;
24 assert(!p.valid());
25 }
26