Hi all,
I tried this one already. I wrote a MyObject and posed it as
NSObject. However NSArray for instance does not call [NSObject
alloc]. (??) Correct me if I'm wrong.
It calls +allocWithZone: ... if you are wanting to override object
allocation, this is a more fundamental method. More fundamental still
is the NSAllocateObject() function.
However, not all classes will call +allocWithZone: or even
NSAllocateObject(), though the vast majority do the former and almost
all the latter.
Anyway, unless you have a special need to override
allocation/deallocation for a particular class, I would recommend you
use the memory allocation debug functionality that GNUstep provides in
NSDebug.h instead. This gives you a whole lot of memory allocation
tracking options, from keeping overall counts of objects of each
class, right down to providing callbacks for each individual object
allocation/deallocation. Not only that, but it's hooked in to the
most fundamental object allocation/deallocation functions
(NSAllocateObject() and NSDeallocateObject()) as well as those few
cases where the GNUstep libraries don't use those fundamental
functions ... so it is much more exhaustive than just overriding
+allocWithZone:
If your framework is in a gui application, clicking on the icon in the
standard info panel should display the memory panel showing allocated
object counts ... this gives you a very easy to use starting point for
tracking leaks.
Super cool! Thanks a lot for mentioning this killer feature!!!
Regards,
Andreas
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