Possible Duplicate:
Is releasing memory of Objective-c 2.0 properties required?
For example:
@interface DataMode : NSObject {
NSString * name;
}
@property (nonatomic, retain) NSString * name;
@end
Will the compiler automatically add [name release] to -dealloc?
- (void) dealloc
{
[name release]; // if we don't add it , will the compiler add "[name release]"???
[super release];
}
It depends on which memory management scheme you’re using:
With garbage collection, you don’t need to release the instance variable that backs the declared property — the garbage collector automatically does that. In fact, you wouldn’t be defining a -dealloc method at all even if you need to do other tasks upon deallocation: the garbage collector sends -finalize instead of -dealloc;
With automatic reference counting (ARC), you wouldn’t define that -dealloc method. ARC will automatically release the instance variable that backs the declared property. You can define a -dealloc method to do other housekeeping tasks if needed but you won’t send [super dealloc];
With manual memory management, you need to manually release the instance variable that backs the declared property and then send [super dealloc].
Since you are adding or rather creating name its your responsibility to release it. So you need to add [name release] in dealloc and also in ViewDidUnLoad use name = nil.
ObjectiveC has garbage collection but in iOS garbage collection part has been stripped out. So allocation, deallocation, retain etc. you need to be aware of...
