41 lines
1.7 KiB
C++
41 lines
1.7 KiB
C++
//===----------------------------------------------------------------------===//
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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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// UNSUPPORTED: c++98, c++03
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// Libc++'s enum class emulation does not allow static_cast<Enum>(0) to work.
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// <future>
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// enum class future_errc
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// {
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// broken_promise = implementation-defined,
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// future_already_retrieved = implementation-defined,
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// promise_already_satisfied = implementation-defined,
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// no_state = implementation-defined
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// };
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#include <future>
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int main()
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{
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static_assert(std::future_errc::broken_promise != std::future_errc::future_already_retrieved, "");
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static_assert(std::future_errc::broken_promise != std::future_errc::promise_already_satisfied, "");
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static_assert(std::future_errc::broken_promise != std::future_errc::no_state, "");
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static_assert(std::future_errc::future_already_retrieved != std::future_errc::promise_already_satisfied, "");
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static_assert(std::future_errc::future_already_retrieved != std::future_errc::no_state, "");
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static_assert(std::future_errc::promise_already_satisfied != std::future_errc::no_state, "");
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static_assert(std::future_errc::broken_promise != static_cast<std::future_errc>(0), "");
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static_assert(std::future_errc::future_already_retrieved != static_cast<std::future_errc>(0), "");
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static_assert(std::future_errc::promise_already_satisfied != static_cast<std::future_errc>(0), "");
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static_assert(std::future_errc::no_state != static_cast<std::future_errc>(0), "");
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}
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