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