290     check_cmp(P, R0, R0),
291     check_cmp(P, R0, R1),
292     check_cmp(P, R1, R0),
293     check_cmp(P, mk_ref({a@b, 4711}, [17, 17, 17]), mk_ref({a@c, 4711}, [17, 17, 17])),
294     check_cmp(P, mk_ref({a@b, 4711}, [17, 17, 17]), mk_ref({a@d, 4711}, [17, 17, 17])),
295     check_cmp(P, mk_ref({a@b, 4711}, [17, 17, 17]), mk_ref({a@bc, 4711}, [17, 17, 17])),
296     check_cmp(P, mk_ref({a@b, 4712}, [17, 17, 17]), mk_ref({a@b, 4711}, [17, 17, 17])),
297     check_cmp(P, mk_ref({a@b, 4711}, [17, 17, 17]), mk_ref({a@b, 4711}, [18, 17, 17])),
298     check_cmp(P, mk_ref({a@b, 4711}, [17, 17, 17]), mk_ref({a@b, 4711}, [17, 18, 17])),
299     check_cmp(P, mk_ref({a@b, 4711}, [17, 17, 17]), mk_ref({a@b, 4711}, [17, 17, 18])),
300     check_cmp(P, mk_ref({a@b, 4711}, [0, 17]), mk_ref({a@b, 4711}, [18])),
301     check_cmp(P, mk_ref({a@b, 4711}, [17, 17]), mk_ref({a@b, 4711}, [17, 18])),
302     check_cmp(P, mk_ref({a@b, 4711}, [0, 0, 0]), mk_ref({a@b, 4711}, [17])),
303     check_cmp(P, mk_ref({a@b, 4711}, [0, 0, 17]), mk_ref({a@b, 4711}, [18, 17])),
304     check_cmp(P, mk_ref({a@b, 4711}, [0, 17, 17]), mk_ref({a@b, 4711}, [18])),
306     check_cmp(P, self(), self()),
307     check_cmp(P, self(), whereis(file_server_2)),
308     check_cmp(P, whereis(file_server_2), self()),
309     check_cmp(P, mk_pid({a@b, 4711}, 17, 17), mk_pid({a@c, 4711}, 17, 17)),
310     check_cmp(P, mk_pid({a@b, 4711}, 17, 17), mk_pid({a@d, 4711}, 17, 17)),
311     check_cmp(P, mk_pid({a@b, 4711}, 17, 17), mk_pid({a@bc, 4711}, 17, 17)),
312     check_cmp(P, mk_pid({a@b, 4712}, 17, 17), mk_pid({a@b, 4711}, 17, 17)),
313     check_cmp(P, mk_pid({a@b, 4711}, 17, 17), mk_pid({a@b, 4711}, 18, 17)),
314     check_cmp(P, mk_pid({a@b, 4711}, 17, 17), mk_pid({a@b, 4711}, 17, 18)),
318     [check_cmp(P, mk_pid({a@b, 4711}, A, B), mk_pid({a@b, 4711}, C, D))
329     check_cmp(P, Prt0, Prt0),
330     check_cmp(P, Prt1, Prt0),
331     check_cmp(P, Prt0, Prt1),
332     check_cmp(P, mk_port({a@b, 4711}, 17), mk_port({a@b, 4711}, 17)),
333     check_cmp(P, mk_port({a@b, 4711}, 17), mk_port({a@d, 4711}, 17)),
334     check_cmp(P, mk_port({a@b, 4711}, 17), mk_port({a@bc, 4711}, 17)),
335     check_cmp(P, mk_port({a@b, 4712}, 17), mk_port({a@b, 4711}, 17)),
336     check_cmp(P, mk_port({a@b, 4711}, 17), mk_port({a@b, 4711}, 18)),
351 check_cmp(P, A, B) when is_pid(A), is_pid(B) ->  function
352     check_cmp(P, {cmp_pids, A, B});
353 check_cmp(P, A, B) when is_port(A), is_port(B) ->  function
354     check_cmp(P, {cmp_ports, A, B});
355 check_cmp(P, A, B) when is_reference(A), is_reference(B) ->  function
356     check_cmp(P, {cmp_refs, A, B}).
358 check_cmp(P, {_, A, B} = Data) ->  function