Re:Simple dealloc question
Re:Simple dealloc question
- Subject: Re:Simple dealloc question
- From: <email@hidden>
- Date: Mon, 15 Oct 2007 14:17:06 +0530
- Thread-topic: Re:Simple dealloc question
Found the following code in an example (track is a pointer to a Track
object)
- (void)dealloc
{
[track release], track = nil;
[super dealloc];
}
What is the point of having track = nil? Wouldn't the following code be
enough?
- (void)dealloc
{
[track release];
[super dealloc];
}
Bob
------------------------------------------------------------------------
----------------------------
Hi Bob,
Consider the following code snippet
my_obj = [ [ NSMutableArray alloc] init ];
[ my_obj release ]; // freeing the object my_obj
[ my_obj count]; // sending message count to freed object
In the above snippet we are freeing an object and then sending a message
to it.
This will cause a crash.
To prevent such a crash many programmers after releasing an object set
its pointer to nil.
[ my_obj release ]; // freeing the object my_obj
my_obj = nil ;
Best Regards,
Amrit.
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