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 main(int,char **)22int 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