Milline on AutoreleasePool roll ja eesmärk mäluhalduses Objective-C-s?

AutoreleasePool in Objective-C is used to manage the lifetime of objects in an environment with manual memory management (before ARC or in some cases with ARC). It allows temporarily delaying the release of objects sent via the autorelease method until the pool is cleared.

The main role of AutoreleasePool:

• Collect objects that should be released later, not immediately.
• Release them all at once when exiting the pool scope, helping to prevent memory leaks and simplifying management.

Example of usage:

@autoreleasepool {
    NSString *tempString = [[NSString alloc] initWithFormat:@"Hello, %@!", @"World"];
    // tempString will be automatically released upon exiting this block
}

Without AutoreleasePool, a programmer would have to manually call release for each object, increasing the risk of errors. In modern applications with ARC, AutoreleasePool is still used for managing temporary objects, especially in loops or threads.