1 /* RUN: %clang_cc1 %s -fsyntax-only -pedantic -verify 2 */ 3 4 extern struct {int a;} x; // expected-note {{previous declaration is here}} 5 extern struct {int a;} x; // expected-error {{redeclaration of 'x'}} 6 7 struct x; 8 int a(struct x* b) { 9 // Per C99 6.7.2.3, since the outer and inner "struct x"es have different 10 // scopes, they don't refer to the same type, and are therefore incompatible 11 struct x {int a;} *c = b; // expected-warning {{incompatible pointer types}} 12 } 13 14 struct x {int a;} r; 15 int b() { 16 struct x {char x;} s = r; // expected-error {{initializing 'struct x' with an expression of incompatible type 'struct x'}} 17 } 18
