The compiler is being asked to compile the file with ARC (automatic reference counting) enabled. Turn that off or, better yet, modernize your example: int main (int argc, const char * argv[]) { @autoreleasepool { NSLog (@”Programming is fun!”); } return 0; } (No, I can’t tell you how, specifically, to turn off ARC, if … Read more
The @autoreleasepool statement is doing the same job as before, instead of using the NSAutoreleasePool class. The way the NSAutoreleasePool worked was a bit weird, as creating it caused an effect throughout the whole application; @autoreleasepool creates a scoped area and makes it clearer what’s within the pool and when it drains (when it goes … Read more
The syntax is as follows: autoreleasepool { /* code */ } Unfortunately Apple’s WWDC 2014 videos no-longer seem to be available. Incase it comes back, it was covered in WWDC 2014 session video number 418 “Improving Your App with Instruments”. The swift documentation doesn’t contain anything useful currently. But you can find plenty of good … Read more
Yes, your second code snippit is perfectly valid. Every time -autorelease is sent to an object, it is added to the inner-most autorelease pool. When the pool is drained, it simply sends -release to all the objects in the pool. Autorelease pools are simply a convenience that allows you to defer sending -release until “later”. … Read more