Question

Can I force an Autorelase object by calling a release without autorelease pool like that:

NSString *myString = [[[NSString alloc] init] autorelease];
[myString release];

Normally it’s like that:

NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
NSString *myString = [[[NSString alloc] init] autorelease];
[pool release];

Answer 1

The first sample will crash, since the string will get over-released. If you want to have control over the lifetime of your autoreleased objects, the correct approach is what your second sample does – create a local autorelease pool that you can drain when you want.