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// RUN: %clang_cc1 -fsyntax-only -verify -Wsign-conversion %s
// rdar://13855394
typedef unsigned int NSUInteger;
@interface NSObject
- new;
- (NSUInteger)hash;
@end
@interface X : NSObject
@property NSUInteger uint;
@end
@interface NSArray : NSObject
- (NSUInteger)count;
- (id)objectAtIndex:(NSUInteger)index;
- (id)objectAtIndexedSubscript:(NSUInteger)index;
@end
void foo() {
X *x = [X new];
signed int sint = -1;
[x setUint:sint]; // expected-warning {{implicit conversion changes signedness: 'int' to 'NSUInteger'}}
x.uint = sint; // expected-warning {{implicit conversion changes signedness: 'int' to 'NSUInteger'}}
}
// rdar://13855682
void Test1() {
signed int si = -1;
NSArray *array;
(void)((NSObject*)array[si]).hash; // expected-warning {{implicit conversion changes signedness: 'int' to 'NSUInteger'}}
(void)[((NSObject*)array[si]) hash]; // expected-warning {{implicit conversion changes signedness: 'int' to 'NSUInteger'}}
(void)array[si]; // expected-warning {{implicit conversion changes signedness: 'int' to 'NSUInteger'}}
}
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