Files
llvm-project/libcxx/test/std/thread/thread.jthread/hardware_concurrency.pass.cpp
Nikolas Klauser 1760206383 [libc++] Remove availability annotations that aren't required anymore (#161640)
Apple dropped support for some older platforms, so we can also remove
the annotations for them.
See https://developer.apple.com/support/xcode/ for the supported
versions.
2025-10-09 08:46:02 +02:00

29 lines
872 B
C++

//===----------------------------------------------------------------------===//
//
// 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
// [[nodiscard]] static unsigned int hardware_concurrency() noexcept;
#include <cassert>
#include <concepts>
#include <thread>
#include <type_traits>
#include "test_macros.h"
static_assert(noexcept(std::jthread::hardware_concurrency()));
int main(int, char**) {
std::same_as<unsigned int> decltype(auto) result = std::jthread::hardware_concurrency();
assert(result == std::thread::hardware_concurrency());
return 0;
}