1// RUN: %clang_cc1 -fsyntax-only -verify %s 2 3@protocol Foo; 4 5Class T; 6id<Foo> S; 7id R; 8void foo(void) { 9 // Test assignment compatibility of Class and id. No warning should be 10 // produced. 11 // Class and id<foo> are compatible. 12 S = T; // expected-warning {{incompatible pointer types assigning to 'id<Foo>' from 'Class'}} 13 T = S; // expected-warning {{incompatible pointer types assigning to 'Class' from 'id<Foo>'}} 14 R = T; T = R; 15 R = S; S = R; 16} 17 18// Test attempt to redefine 'id' in an incompatible fashion. 19typedef int id; // expected-error {{typedef redefinition with different types ('int' vs 'id')}} 20id b; 21 22typedef double id; // expected-error {{typedef redefinition with different types ('double' vs 'id')}} 23 24typedef char *id; // expected-error {{typedef redefinition with different types ('char *' vs 'id')}} 25 26typedef union U{ int iu; } *id; // expected-error {{typedef redefinition with different types ('union U *' vs 'id')}} 27 28void test11356439(id o) { 29 o->x; // expected-error {{member reference base type 'id' is not a structure or union}} 30} 31