36   struct Iterator {  struct
40     Iterator(const Reporter *owner, int pos) : owner(owner), pos(pos) {}  in Iterator()  function
42     Iterator(const Iterator &that) : owner(that.owner), pos(that.pos) {  in Iterator()  argument
46     Iterator(Iterator &&that) : owner(that.owner), pos(that.pos) {  in Iterator()  argument
50     ~Iterator() { owner->print("iterator dtor"); }  in ~Iterator()  argument
52     const Iterator &operator=(const Iterator &that) {  in operator =()  argument
59     const Iterator &operator=(Iterator &&that) {  in operator =()  argument
66     bool operator==(const Iterator &that) const {  in operator ==()  argument
71     Iterator &operator++() {  in operator ++()  argument
77     Iterator operator++(int) {  in operator ++()  argument
90     size_t operator-(const Iterator &that) const {  in operator -()  argument
96     Iterator operator+(int steps) const {  in operator +()  argument
98       return Iterator(owner, pos - steps);  in operator +()
102   Iterator begin() const {  in begin()
104     return Iterator(this, 2);  in begin()
107   Iterator end() const {  in end()
109     return Iterator(this, -1);  in end()