How i can owerride allocWithZone in NSArray category

Question

I want calculate retain and release call count for all objects.
I wrote category for NSObject and UIView:
@implementation NSObject ( memCheck )
+ (id)allocWithZone:(NSZone *)zone;
NSLog(@"NSObject allocWithZone");
return NSAllocateObject(self , 0, zone);
@end
@implementation UIView ( memCheck )
+ (id)allocWithZone:(NSZone *)zone;
NSLog(@"UIView allocWithZone: ");
return NSAllocateObject(self, 0, zone);
@end
And that work. But when i create category for NSArray:
@implementation NSArray ( memCheck )
+ (id)allocWithZone:(NSZone *)zone;
NSLog(@"NSArray allocWithZone: ");
return NSAllocateObject(self, 0, zone);
@end
i cath crash with message:
* Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[NSArray initWithObjects:count:]: method sent to an instance (0x512c70) of an abstract class. Create a concrete instance!'
How i can owerride allocWithZone in NSArray category ?

Answer 1

By checking the time in the display change history when the value was changed and mapping that change time in the workflow log you can find out which task is doing that and I also feel the task would be self explanatory. Check the wflow log and correspondingly the wflow template.
Thanks
Arghadip