| 1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
|---|
| 2 | // expected-no-diagnostics |
|---|
| 3 | |
|---|
| 4 | #define nil (void *)0; |
|---|
| 5 | #define Nil (void *)0; |
|---|
| 6 | |
|---|
| 7 | @protocol MyProtocol |
|---|
| 8 | - (void) foo; |
|---|
| 9 | @end |
|---|
| 10 | |
|---|
| 11 | @interface MyClass |
|---|
| 12 | @end |
|---|
| 13 | |
|---|
| 14 | int main() |
|---|
| 15 | { |
|---|
| 16 | id obj = nil; |
|---|
| 17 | id<MyProtocol> obj_p = nil; |
|---|
| 18 | MyClass *obj_c = nil; |
|---|
| 19 | Class obj_C = Nil; |
|---|
| 20 | |
|---|
| 21 | /* All these casts should generate no warnings. */ |
|---|
| 22 | |
|---|
| 23 | obj = (id)obj_p; |
|---|
| 24 | obj = (id)obj_c; |
|---|
| 25 | obj = (id)obj_C; |
|---|
| 26 | obj_c = (MyClass *)obj; |
|---|
| 27 | obj_c = (MyClass *)obj_p; |
|---|
| 28 | obj_c = (MyClass *)obj_C; |
|---|
| 29 | obj_p = (id<MyProtocol>)obj; |
|---|
| 30 | obj_p = (id<MyProtocol>)obj_c; |
|---|
| 31 | obj_p = (id<MyProtocol>)obj_C; |
|---|
| 32 | obj_C = (Class)obj; |
|---|
| 33 | obj_C = (Class)obj_p; |
|---|
| 34 | obj_C = (Class)obj_c; |
|---|
| 35 | |
|---|
| 36 | |
|---|
| 37 | return 0; |
|---|
| 38 | } |
|---|
| 39 | |
|---|