| 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, c++11, c++14 |
| 11 | |
| 12 | // <future> |
| 13 | |
| 14 | // class future_error |
| 15 | // |
| 16 | // explicit future_error(future_errc e); // since C++17 |
| 17 | |
| 18 | #include <cassert> |
| 19 | #include <future> |
| 20 | #include <type_traits> |
| 21 | |
| 22 | int main(int, char**) { |
| 23 | { |
| 24 | std::future_error f(std::future_errc::broken_promise); |
| 25 | assert(f.code() == std::make_error_code(std::future_errc::broken_promise)); |
| 26 | } |
| 27 | { |
| 28 | std::future_error f(std::future_errc::future_already_retrieved); |
| 29 | assert(f.code() == std::make_error_code(std::future_errc::future_already_retrieved)); |
| 30 | } |
| 31 | { |
| 32 | std::future_error f(std::future_errc::promise_already_satisfied); |
| 33 | assert(f.code() == std::make_error_code(std::future_errc::promise_already_satisfied)); |
| 34 | } |
| 35 | { |
| 36 | std::future_error f(std::future_errc::no_state); |
| 37 | assert(f.code() == std::make_error_code(std::future_errc::no_state)); |
| 38 | } |
| 39 | |
| 40 | // Make sure the constructor is explicit |
| 41 | static_assert(!std::is_convertible_v<std::future_errc, std::future_error>); |
| 42 | |
| 43 | return 0; |
| 44 | } |
| 45 |