Re: strange crasher that puzzles me

[David Chisnall]

On 31 Mar 2009, at 14:32, Sebastian Reitenbach wrote:

>    numberStack = [NSMutableArray array];

This line is your problem.  It creates an autoreleased array.  The  
next time you enter this method, the numberStack pointer will still be  
non-nil, but if the autorelease pool has been destroyed (typically at  
the end of the run loop iteration) then this pointer will be invalid.   
Attempting to dereference it will cause a segmentation fault.  Try  
changing it to:

   numberStack = [NSMutableArray new];

David