1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// UNSUPPORTED: no-threads
10// UNSUPPORTED: c++03
11
12// <future>
13
14// class packaged_task<R(ArgTypes...)>
15
16// packaged_task();
17
18#include <future>
19#include <cassert>
20
21#include "test_macros.h"
22
23struct A {};
24
25int main(int, char**)
26{
27 std::packaged_task<A(int, char)> p;
28 assert(!p.valid());
29
30 return 0;
31}
32

source code of libcxx/test/std/thread/futures/futures.task/futures.task.members/ctor_default.pass.cpp