1 // RUN: %clang_cc1 -fsyntax-only -std=c++03 -verify %s 2 3 class string; f(const string & s,...)4void f(const string& s, ...) { // expected-note {{parameter of type 'const string &' is declared here}} 5 __builtin_va_list ap; 6 __builtin_va_start(ap, s); // expected-warning {{passing an object of reference type to 'va_start' has undefined behavior}} 7 } 8 g(register int i,...)9void g(register int i, ...) { 10 __builtin_va_list ap; 11 __builtin_va_start(ap, i); // okay 12 } 13