372   class iterator {
398     iterator() : Self(0), Position(0) { }  in iterator()  function
400     iterator(LazyVector *Self, int Position)   in iterator()  function
420     iterator &operator++() {
425     iterator operator++(int) {
426       iterator Prev(*this);
431     iterator &operator--() {
436     iterator operator--(int) {
437       iterator Prev(*this);
442     friend bool operator==(const iterator &X, const iterator &Y) {
446     friend bool operator!=(const iterator &X, const iterator &Y) {
450     friend bool operator<(const iterator &X, const iterator &Y) {
454     friend bool operator>(const iterator &X, const iterator &Y) {
458     friend bool operator<=(const iterator &X, const iterator &Y) {
462     friend bool operator>=(const iterator &X, const iterator &Y) {
466     friend iterator& operator+=(iterator &X, difference_type D) {
471     friend iterator& operator-=(iterator &X, difference_type D) {
476     friend iterator operator+(iterator X, difference_type D) {
481     friend iterator operator+(difference_type D, iterator X) {
486     friend difference_type operator-(const iterator &X, const iterator &Y) {
490     friend iterator operator-(iterator X, difference_type D) {
495   friend class iterator;  variable
497   iterator begin(Source *source, bool LocalOnly = false) {
499       return iterator(this, 0);
503     return iterator(this, -(int)Loaded.size());
506   iterator end() {  in end()
507     return iterator(this, Local.size());  in end()
514   void erase(iterator From, iterator To) {  in erase()