| 1 | // RUN: %clang_cc1 -fsyntax-only -verify -Wsign-conversion %s |
|---|
| 2 | // rdar://13855394 |
|---|
| 3 | |
|---|
| 4 | typedef unsigned int NSUInteger; |
|---|
| 5 | |
|---|
| 6 | @interface NSObject |
|---|
| 7 | - new; |
|---|
| 8 | - (NSUInteger)hash; |
|---|
| 9 | @end |
|---|
| 10 | |
|---|
| 11 | @interface X : NSObject |
|---|
| 12 | @property NSUInteger uint; |
|---|
| 13 | @end |
|---|
| 14 | |
|---|
| 15 | @interface NSArray : NSObject |
|---|
| 16 | |
|---|
| 17 | - (NSUInteger)count; |
|---|
| 18 | - (id)objectAtIndex:(NSUInteger)index; |
|---|
| 19 | - (id)objectAtIndexedSubscript:(NSUInteger)index; |
|---|
| 20 | |
|---|
| 21 | @end |
|---|
| 22 | |
|---|
| 23 | void foo() { |
|---|
| 24 | X *x = [X new]; |
|---|
| 25 | signed int sint = -1; |
|---|
| 26 | [x setUint:sint]; // expected-warning {{implicit conversion changes signedness: 'int' to 'NSUInteger'}} |
|---|
| 27 | x.uint = sint; // expected-warning {{implicit conversion changes signedness: 'int' to 'NSUInteger'}} |
|---|
| 28 | } |
|---|
| 29 | |
|---|
| 30 | // rdar://13855682 |
|---|
| 31 | void Test1() { |
|---|
| 32 | signed int si = -1; |
|---|
| 33 | NSArray *array; |
|---|
| 34 | |
|---|
| 35 | (void)((NSObject*)array[si]).hash; // expected-warning {{implicit conversion changes signedness: 'int' to 'NSUInteger'}} |
|---|
| 36 | |
|---|
| 37 | (void)[((NSObject*)array[si]) hash]; // expected-warning {{implicit conversion changes signedness: 'int' to 'NSUInteger'}} |
|---|
| 38 | (void)array[si]; // expected-warning {{implicit conversion changes signedness: 'int' to 'NSUInteger'}} |
|---|
| 39 | } |
|---|
| 40 | |
|---|