28    LIBCPP_STATIC_ASSERT(static_cast<int>(std::launch::any) ==  in main()
29 …             (static_cast<int>(std::launch::async) | static_cast<int>(std::launch::deferred)), "");  in main()
31     LIBCPP_STATIC_ASSERT(std::launch::any == (std::launch::async | std::launch::deferred), "");  in main()
32     static_assert(std::launch(0) == (std::launch::async & std::launch::deferred), "");  in main()
33     LIBCPP_STATIC_ASSERT(std::launch::any == (std::launch::async ^ std::launch::deferred), "");  in main()
34     LIBCPP_STATIC_ASSERT(std::launch::deferred == ~std::launch::async, "");  in main()
35     std::launch x = std::launch::async;  in main()
36     x &= std::launch::deferred;  in main()
37     assert(x == std::launch(0));  in main()
38     x = std::launch::async;  in main()
39     x |= std::launch::deferred;  in main()
40     LIBCPP_ASSERT(x == std::launch::any);  in main()
41     x ^= std::launch::deferred;  in main()
42     assert(x == std::launch::async);  in main()
44     static_assert(static_cast<int>(std::launch::async) == 1, "");  in main()
45     static_assert(static_cast<int>(std::launch::deferred) == 2, "");  in main()