In Cocoa, how is the id type defined?

Question

This question is out of pure curiosity. How does Cocoa define the id type? Is it just a typedef for a void *? Also, if you know which header file it is defined in, I would b

Answer 1

The id type is generally declared like:

typedef struct objc_object *id;

This is critical for Objective-C++ where the type is part of a mangled function name.

You can take a look in /usr/include/objc/objc.h