18 lines · c
1/* RUN: %clang_cc1 %s -fsyntax-only -pedantic -verify2 */3 4extern struct {int a;} x; // expected-note {{previous declaration is here}}5extern struct {int a;} x; // expected-error {{redeclaration of 'x'}}6 7struct x;8int a(struct x* b) {9// Per C99 6.7.2.3, since the outer and inner "struct x"es have different10// scopes, they don't refer to the same type, and are therefore incompatible11struct x {int a;} *c = b; // expected-error {{incompatible pointer types}}12}13 14struct x {int a;} r;15int b(void) {16struct x {char x;} s = r; // expected-error {{initializing 'struct x' with an expression of incompatible type 'struct x'}}17}18