42 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			42 lines
		
	
	
		
			1.1 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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// UNSUPPORTED: libcpp-has-no-threads
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// UNSUPPORTED: c++98, c++03
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// <mutex>
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// template <class ...Mutex> class lock_guard;
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// lock_guard(lock_guard const&) = delete;
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#define _LIBCPP_ABI_VARIADIC_LOCK_GUARD
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#include <mutex>
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int main()
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{
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    using M = std::mutex;
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    M m0, m1, m2;
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    {
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        using LG = std::lock_guard<>;
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        const LG Orig;
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        LG Copy(Orig); // expected-error{{call to deleted constructor of 'LG'}}
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    }
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    {
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        using LG = std::lock_guard<M, M>;
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        const LG Orig(m0, m1);
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        LG Copy(Orig); // expected-error{{call to deleted constructor of 'LG'}}
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    }
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    {
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        using LG = std::lock_guard<M, M, M>;
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        const LG Orig(m0, m1, m2);
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        LG Copy(Orig); // expected-error{{call to deleted constructor of 'LG'}}
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    }
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}
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