85   void operator()(const void* ptr) const {  in operator()  function
138   size_t operator()(const Vector& vector) const {  in operator()  function
168   ZipLeftIter<IterLeft, IterRight>& operator++() {
173   ZipLeftIter<IterLeft, IterRight> operator++(int) {
178   bool operator==(const ZipLeftIter<IterLeft, IterRight>& other) const {
181   bool operator!=(const ZipLeftIter<IterLeft, IterRight>& other) const {
184   std::pair<typename IterLeft::value_type, typename IterRight::value_type> operator*() const {
203   CountIter& operator++() {
207   CountIter operator++(int) {
212   bool operator==(const CountIter& other) const {
215   bool operator!=(const CountIter& other) const {
218   size_t operator*() const {
266   FilterIterator<RealIter, Filter>& operator++() {
275   FilterIterator<RealIter, Filter> operator++(int) {
280   bool operator==(const FilterIterator<RealIter, Filter>& other) const {
283   bool operator!=(const FilterIterator<RealIter, Filter>& other) const {
286   typename RealIter::value_type operator*() const {
308   constexpr bool operator()(Val v) const {  in operator()  function
327 std::ostream& operator<<(std::ostream& os, const SafePrinter<Val>& v) {
356   SplitStringIter& operator=(SplitStringIter&&) = default;  member
357   SplitStringIter& operator=(const SplitStringIter&) = default;  member
359   SplitStringIter& operator++() {
369   SplitStringIter operator++(int) {
375   bool operator==(const SplitStringIter& other) const {
379   bool operator!=(const SplitStringIter& other) const {
383   typename std::string_view operator*() const {