 in the Caml code. Those pointers
are simply set to null when converting from Caml to C, and ignored
when converting from C to Caml. They cannot occur elsewhere.</p><p>If no explicit pointer kind is given, the <span class=machine><span class=font-tt>pointer</span></span><span class=machine><span class=font-tt>_</span></span><span class=machine><span class=font-tt>default</span></span> attribute
of the enclosing interface, if any, determines the kind of the pointer.
If no <span class=machine><span class=font