On Nov 14, 2011, at 1:22 PM, Greg Parker wrote: > On Nov 12, 2011, at 2:29 AM, Jean-Daniel Dupas wrote: >> Le 12 nov. 2011 à 03:34, Charles Srstka a écrit : >>> >>> In this day and age, you should probably just use @autoreleasepool instead >>> of NSAutoreleasePool: >>> >>> int get_float_data(float *result1, float *result2) >>> { >>> @autoreleasepool { >>> [objcCode call]; >>> *result1 = [more stuff]; >>> etc.; >>> } >>> >>> return blahblah; >>> } >> >> >> Note that this code is not equivalent with the previous one. >> @autoreleasepool does not drain on exception. > > Incorrect. @autoreleasepool does everything that NSAutoreleasePool does on > exceptions.
But NSAutoreleasePool doesn't drain on an exception, since it doesn't have an explicit scope. Code posted earlier in this thread used @try-@finally to explicitly drain the pool. So, while @autoreleasepool would be equivalent to a naive use of NSAutoreleasePool, it's not equivalent to the earlier code. Quoting from the Transitioning to ARC Release Notes <http://developer.apple.com/library/mac/#releasenotes/ObjectiveC/RN-TransitioningToARC/_index.html>: > On entry, an autorelease pool is pushed. On normal exit (break, return, goto, > fall-through, and so on) the autorelease pool is popped. For compatibility > with existing code, if exit is due to an exception, the autorelease pool is > not popped. Regards, Ken _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com