iPhone development: pointer being freed was not allocated

Question

i got this message from the debugger:

Pixture(1257,0xa0610500) malloc: *** error for object 0x21a8000: pointer being freed was not allocated
*** set a breakpo         


        

Answer 1

It might be just me but you can't do the following ?

UIImage *whiteMasked = UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

return whiteMasked;

whiteMasked is allocated on the stack of the function and after it returns the pointer is no longer valid? Or am I missing something? If you use the returned UIImage* it is not guaranteed to still be there. (it would be a hit and miss). Don't you need to alloc a UIImage* and then autorelease it before returning?