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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// UNSUPPORTED: no-threads
// <future>
//
// class future_error
//
// const error_code& code() const noexcept;
#include <cassert>
#include <future>
#include <utility>
#include "test_macros.h"
int main(int, char**) {
ASSERT_NOEXCEPT(std::declval<std::future_error const&>().code());
ASSERT_SAME_TYPE(decltype(std::declval<std::future_error const&>().code()), std::error_code const&);
// Before C++17, we can't construct std::future_error directly in a standards-conforming way
#if TEST_STD_VER >= 17
{
std::future_error const f(std::future_errc::broken_promise);
std::error_code const& code = f.code();
assert(code == std::make_error_code(std::future_errc::broken_promise));
}
{
std::future_error const f(std::future_errc::future_already_retrieved);
std::error_code const& code = f.code();
assert(code == std::make_error_code(std::future_errc::future_already_retrieved));
}
{
std::future_error const f(std::future_errc::promise_already_satisfied);
std::error_code const& code = f.code();
assert(code == std::make_error_code(std::future_errc::promise_already_satisfied));
}
{
std::future_error const f(std::future_errc::no_state);
std::error_code const& code = f.code();
assert(code == std::make_error_code(std::future_errc::no_state));
}
#endif
return 0;
}
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