1 // Negative explicit conv test. 2 // { dg-do compile { target c++11 } } 3 4 struct A { 5 A(const A&, int = 0); // { dg-message "note" } 6 }; 7 struct B 8 { 9 explicit operator A(); 10 }; 11 main()12 int main() 13 { 14 B b; 15 (A(b)); // OK 16 (A(b,1)); // { dg-error "no match" } 17 } 18