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// RUN: %clang_cc1 -fsyntax-only -verify %s
@protocol Foo;
Class T;
id<Foo> S;
id R;
void foo(void) {
// Test assignment compatibility of Class and id. No warning should be
// produced.
// Class and id<foo> are compatible.
S = T; // expected-warning {{incompatible pointer types assigning to 'id<Foo>' from 'Class'}}
T = S; // expected-warning {{incompatible pointer types assigning to 'Class' from 'id<Foo>'}}
R = T; T = R;
R = S; S = R;
}
// Test attempt to redefine 'id' in an incompatible fashion.
typedef int id; // expected-error {{typedef redefinition with different types ('int' vs 'id')}}
id b;
typedef double id; // expected-error {{typedef redefinition with different types ('double' vs 'id')}}
typedef char *id; // expected-error {{typedef redefinition with different types ('char *' vs 'id')}}
typedef union U{ int iu; } *id; // expected-error {{typedef redefinition with different types ('union U *' vs 'id')}}
void test11356439(id o) {
o->x; // expected-error {{member reference base type 'id' is not a structure or union}}
}
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