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// enum class launch
13// {
14//     async = 1,
15//     deferred = 2,
16//     any = async | deferred
17// };
18
19#include <future>
20#include <cassert>
21
22int main()
23{
24#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
25    static_assert(static_cast<int>(std::launch::any) ==
26                 (static_cast<int>(std::launch::async) | static_cast<int>(std::launch::deferred)), "");
27#else
28    static_assert(std::launch::any == (std::launch::async | std::launch::deferred), "");
29    static_assert(std::launch(0) == (std::launch::async & std::launch::deferred), "");
30    static_assert(std::launch::any == (std::launch::async ^ std::launch::deferred), "");
31    static_assert(std::launch::deferred == ~std::launch::async, "");
32    std::launch x = std::launch::async;
33    x &= std::launch::deferred;
34    assert(x == std::launch(0));
35    x = std::launch::async;
36    x |= std::launch::deferred;
37    assert(x == std::launch::any);
38    x ^= std::launch::deferred;
39    assert(x == std::launch::async);
40#endif
41    static_assert(static_cast<int>(std::launch::async) == 1, "");
42    static_assert(static_cast<int>(std::launch::deferred) == 2, "");
43}
44