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 
12 // <future>
13 
14 // enum class future_errc
15 // {
16 //     future_already_retrieved = 1,
17 //     promise_already_satisfied,
18 //     no_state
19 //     broken_promise,
20 // };
21 
22 #include <future>
23 
main()24 int main()
25 {
26     static_assert(static_cast<int>(std::future_errc::future_already_retrieved) == 1, "");
27     static_assert(static_cast<int>(std::future_errc::promise_already_satisfied) == 2, "");
28     static_assert(static_cast<int>(std::future_errc::no_state) == 3, "");
29     static_assert(static_cast<int>(std::future_errc::broken_promise) == 4, "");
30 }
31