8 lines
		
	
	
		
			298 B
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			8 lines
		
	
	
		
			298 B
		
	
	
	
		
			C++
		
	
	
	
	
	
| // RUN: %clang_cc1 -fsyntax-only -verify %s
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| 
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| class string;
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| void f(const string& s, ...) {  // expected-note {{parameter of type 'const string &' is declared here}}
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|   __builtin_va_list ap;
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|   __builtin_va_start(ap, s); // expected-warning {{'va_start' has undefined behavior with reference types}}
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| }
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