How to assign a value to an pointer-pointer passed in call by reference?
- by mystify
I want to achieve something similar to what these guys do here:
- (NSUInteger)countForFetchRequest:(NSFetchRequest *)request error:(NSError **)error
like you can see, you pass an NSError pointer and that nice method will assign a real NSError object to your pointer in case there is an error. So the cool thing about this is, that the method returns an NSUInteger but can ALSO return an NSError, without having to mess around with ugly and fat arrays or dictionaries.
So how could I assign an object to the passed-in error pointer?
