NSAutoreleasePool crashes in 4.0 Simulator but not 3.2

[That Don Guy]

I have an app that runs fine when compiled and run on the 3.2 Simulator using XCode 3.2.3, but on the 4.0 Simulator, when I try to allocate and initialize an NSAutoreleasePool as part of a background loop, it stops with a SIGABRT exception.

The code that starts the background loop is:

[NSThread detachNewThreadSelector:@selector(checkNumber) toTarget:self withObject:nil];

and the first line of checkNumber (the point where it crashes - a breakpoint set here stops successfully, but any sort of "step" throws the exception) is:

NSAutoreleasePool *pool = [[NSAutoreleasePool init] alloc];

Any reason why this is happening? Am I missing something with the project settings?

-- Don

[ChrisL]

Just a typo:

[[NSAutoreleasePool init] alloc]

should be

[[NSAutoreleasePool alloc] init]

[That Don Guy]

Actually, having init before alloc is how it appeared in the code (and why the compiler let it through and 3.2 let it run, I don't know) - fixing it solved the problem.

-- Don

[ChrisL]

Originally Posted by That Don Guy

Actually, having init before alloc is how it appeared in the code (and why the compiler let it through and 3.2 let it run, I don't know) - fixing it solved the problem.

-- Don

Yes, sorry, I meant that the bug was probably just a typo in the code (I wasn't referring to your post itself). No idea why it previously worked, but glad it's fixed now.