30 lines
981 B
C++
30 lines
981 B
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// UNSUPPORTED: no-threads
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// UNSUPPORTED: libcpp-has-no-experimental-stop_token
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// UNSUPPORTED: c++03, c++11, c++14, c++17
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// XFAIL: availability-synchronization_library-missing
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// [[nodiscard]] static unsigned int hardware_concurrency() noexcept;
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#include <cassert>
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#include <concepts>
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#include <thread>
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#include <type_traits>
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#include "test_macros.h"
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static_assert(noexcept(std::jthread::hardware_concurrency()));
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int main(int, char**) {
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std::same_as<unsigned int> decltype(auto) result = std::jthread::hardware_concurrency();
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assert(result == std::thread::hardware_concurrency());
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return 0;
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}
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