25 lines
		
	
	
		
			832 B
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			25 lines
		
	
	
		
			832 B
		
	
	
	
		
			C++
		
	
	
	
| // RUN: %check_clang_tidy %s cert-dcl50-cpp %t
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| 
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| // Variadic function definitions are diagnosed.
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| void f1(int, ...) {}
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| // CHECK-MESSAGES: :[[@LINE-1]]:6: warning: do not define a C-style variadic function; consider using a function parameter pack or currying instead [cert-dcl50-cpp]
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| 
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| // Variadic function *declarations* are not diagnosed.
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| void f2(int, ...); // ok
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| 
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| // Function parameter packs are good, however.
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| template <typename Arg, typename... Ts>
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| void f3(Arg F, Ts... Rest) {}
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| 
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| struct S {
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|   void f(int, ...); // ok
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|   void f1(int, ...) {}
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|   // CHECK-MESSAGES: :[[@LINE-1]]:8: warning: do not define a C-style variadic function; consider using a function parameter pack or currying instead
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| };
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| 
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| // Function definitions that are extern "C" are good.
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| extern "C" void f4(int, ...) {} // ok
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| extern "C" {
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|   void f5(int, ...) {} // ok
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| }
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