46 void test_eq(It it, ConstIt cit) {  in test_eq()  argument
47     (void)(it == it);  in test_eq()
48     (void)(it != it);  in test_eq()
49     (void)(it == cit);  in test_eq()
50     (void)(it != cit);  in test_eq()
51     (void)(cit == it);  in test_eq()
52     (void)(cit != it);  in test_eq()
58 void test_lt(It it, ConstIt cit) {  in test_lt()  argument
59     (void)(it <  it);  in test_lt()
60     (void)(it <= it);  in test_lt()
61     (void)(it >  it);  in test_lt()
62     (void)(it >= it);  in test_lt()
63     (void)(it <  cit);  in test_lt()
64     (void)(it <= cit);  in test_lt()
65     (void)(it >  cit);  in test_lt()
66     (void)(it >= cit);  in test_lt()
67     (void)(cit <  it);  in test_lt()
68     (void)(cit <= it);  in test_lt()
69     (void)(cit >  it);  in test_lt()
70     (void)(cit >= it);  in test_lt()
78     (void)(it - it);  in test_lt()
79     (void)(it - cit);  in test_lt()
80     (void)(cit - it);  in test_lt()
91     typename Container::iterator it = c.begin();  in test_forward()  local
93     test_eq(it, cit);  in test_forward()
99     typename Container::iterator it = c.begin();  in test_random_access()  local
101     test_eq(it, cit);  in test_random_access()
102     test_lt(it, cit);  in test_random_access()
122     fs::directory_iterator it;  in test_directory_iterators()  local
123     test_eq(it, it);  in test_directory_iterators()
139     std::span<int>::iterator it = c.begin();  // span has no const_iterator  in test_span()  local
140     test_eq(it, it);  in test_span()
141     test_lt(it, it);  in test_span()