1#define NS_DESIGNATED_INITIALIZER __attribute__((objc_designated_initializer))
2
3@class NSString;
4
5@interface B1
6-(id)init;
7@end
8
9@interface S1 : B1
10-(int)prop;
11-(void)setProp:(int)p;
12+(id)s1;
13-(id)initWithFoo:(NSString*)foo;
14@end
15