Question

How do you release the memory in this situation? Do you have to?

- (NSString *) whatHappensHere {
 NSMutableString * mutableString = [[NSMutableString alloc] initWithString:@"Hello"];
     // ....
        // more code ...
        // ...
 return mutableString;
}

Answer 1

With autorelease

- (NSString *) whatHappensHere {
 NSMutableString * mutableString = [[NSMutableString alloc] initWithString:@"Hello"];

[mutableString autorelease];
 return mutableString;
}