30 lines
		
	
	
		
			662 B
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			30 lines
		
	
	
		
			662 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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// <functional>
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// class function<R(ArgTypes...)>
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// template<class F> function(F);
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// Allow incomplete argument types in the __is_callable check
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#include <functional>
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struct X{
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    typedef std::function<void(X&)> callback_type;
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    virtual ~X() {}
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private:
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    callback_type _cb;
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};
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int main()
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{
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}
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