1 // RUN: %clang_cc1 -verify %s 2 3 struct S; // expected-note 2{{forward declaration of 'S'}} 4 extern S a; 5 extern S f(); // expected-note {{'f' declared here}} 6 extern void g(S a); 7 h()8void h() { 9 g(a); // expected-error {{argument type 'S' is incomplete}} 10 f(); // expected-error {{calling 'f' with incomplete return type 'S'}} 11 } 12