[teaspoon]

With a few exceptions, pointers returned by methods in Objective-C are assumed to be autoreleased. That means their reference count will be decremented at the end of the event loop.

But if OP is expecting a lifetime of learning, he might want to push a new autorelease pool for each iteration.

[mbenjaminsmith]

Or just release it. If you're sure it's autoreleased then retain/release it. If you're not sure, just set it to autorelease before you retain/release it.

[othermaciej]

retain/release on an autoreleased object won't make it get destroyed any faster. You still have to wait for the event loop to cycle (or push/pop your own autorelease pool).

[mbenjaminsmith]

That's correct. That's something I read, have repeated but never bothered to actually test.