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;
a(struct x * b)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;
b()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