48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
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//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// UNSUPPORTED: libcpp-has-no-threads
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// <future>
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// enum class launch
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// {
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// async = 1,
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// deferred = 2,
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// any = async | deferred /* EXTENSION */
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// };
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#include <future>
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#include <cassert>
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#include "test_macros.h"
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int main()
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{
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#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
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LIBCPP_STATIC_ASSERT(static_cast<int>(std::launch::any) ==
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(static_cast<int>(std::launch::async) | static_cast<int>(std::launch::deferred)), "");
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#else
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LIBCPP_STATIC_ASSERT(std::launch::any == (std::launch::async | std::launch::deferred), "");
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static_assert(std::launch(0) == (std::launch::async & std::launch::deferred), "");
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LIBCPP_STATIC_ASSERT(std::launch::any == (std::launch::async ^ std::launch::deferred), "");
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LIBCPP_STATIC_ASSERT(std::launch::deferred == ~std::launch::async, "");
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std::launch x = std::launch::async;
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x &= std::launch::deferred;
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assert(x == std::launch(0));
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x = std::launch::async;
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x |= std::launch::deferred;
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LIBCPP_ASSERT(x == std::launch::any);
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x ^= std::launch::deferred;
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assert(x == std::launch::async);
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#endif
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static_assert(static_cast<int>(std::launch::async) == 1, "");
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static_assert(static_cast<int>(std::launch::deferred) == 2, "");
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}
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