The title is somewhat misleading. While Objective C syntax is mixed into the examples, the looping constructs discussed are entirely native C constructs. The

The title is somewhat misleading. While Objective C syntax is mixed into the examples, the looping constructs discussed are entirely native C constructs. The code also looks to have 32-bit dependencies based on its use of the %u. The use of %lu or %lx and casting is usually preferred in the NSLog, lest 64-bit operations encounter errors. eg: NSLog(@"NSUInteger: %lu", ((unsigned long)i)); http://developer.apple.com/mac/library/documentation/cocoa/conceptual/Strings/Articles/formatSpecifiers.html http://developer.apple.com/mac/library/documentation/cocoa/c...