| NSAssert( [self.delegate conformsToProtocol: @protocol( UISearchBarDelegate )], @"Some Error." ); | |
| Protocol *counter = @protocol(ReferenceCounting); | |
| @protocol ReferenceCounting | |
| - setRefCount:(int)count; | |
| - (int)refCount; | |
| - incrementCount; | |
| - decrementCount; | |
| @end | |
| @interface Formatter : NSObject < Formatting, Prettifying > | |
| @end | |
| if ( [receiver conformsTo:@protocol(ReferenceCounting)] ) | |
| [receiver incrementCount]; | |
| @protocol B; | |
| @protocol A | |
| - Foo:(id <B>)anObject; | |
| @end | |