how to do true deep copy for NSArray and NSDictionary with have nested arrays/dictionary?

Question

Question: Is there a way to use existing objective-c methods to do a full deep copy of a NSDictionary or NSArray, that themselves have nested dictionaries or arrays within t

Answer 1

I think something like this should work.

NSData *buffer;
NSMutableDictionary *_dict1, *_dict2;

// Deep copy "all" objects in _dict1 pointers and all to _dict2  
buffer = [NSKeyedArchiver archivedDataWithRootObject: _dict1];  
_dict2 = [NSKeyedUnarchiver unarchiveObjectWithData: buffer];