// Build don't link: // prms-id: 807 // See ARM page 275 Section 12.3.2 extern "C" int printf (const char *, ...); extern "C" void exit(int); class B; class A { public: A(B&); // ERROR - fn ref in err msg }; class B { public: operator A(); // ERROR - fn ref in err msg }; B b; A a = b; // ERROR - should fail as it is ambigious.