35 lines
809 B
C++
35 lines
809 B
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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// <shared_mutex>
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// template <class Mutex> class shared_lock;
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// shared_lock& operator=(shared_lock const&) = delete;
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#include <shared_mutex>
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#if _LIBCPP_STD_VER > 11
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std::shared_mutex m0;
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std::shared_mutex m1;
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#endif // _LIBCPP_STD_VER > 11
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int main()
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{
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#if _LIBCPP_STD_VER > 11
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std::shared_lock<std::shared_mutex> lk0(m0);
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std::shared_lock<std::shared_mutex> lk1(m1);
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lk1 = lk0;
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#else
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# error
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#endif // _LIBCPP_STD_VER > 11
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}
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