//===----------------------------------------------------------------------===//
//
// 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
// UNSUPPORTED: c++03, c++11, c++14, c++17
// XFAIL: availability-synchronization_library-missing
// [[nodiscard]] id get_id() const noexcept;
#include <cassert>
#include <concepts>
#include <thread>
#include <type_traits>
#include "make_test_thread.h"
#include "test_macros.h"
static_assert(noexcept(std::declval<const std::jthread&>().get_id()));
int main(int, char**) {
// Does not represent a thread
{
const std::jthread jt;
std::same_as<std::jthread::id> decltype(auto) result = jt.get_id();
assert(result == std::jthread::id());
}
// Represents a thread
{
const std::jthread jt = support::make_test_jthread([] {});
std::same_as<std::jthread::id> decltype(auto) result = jt.get_id();
assert(result != std::jthread::id());
}
return 0;
}