This might be a dumb question but just out of curiosity I was looking
at NSString.h. The class appears to have no instance variables.
/* NSString.h ... */
@interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding>
- (NSUInteger)length;
- (unichar)characterAtIndex:(NSUInteger)index;
@end
The same is true for NSArray, NSSet, and other foundation classes. If
the class has no instance variables, what does it do for storage?
Richard
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