38 class HashSetIterator {
46   HashSetIterator(const HashSetIterator&) = default;
47   HashSetIterator(HashSetIterator&&) = default;
48   HashSetIterator(HashSetType* hash_set, size_t index) : index_(index), hash_set_(hash_set) {}  in HashSetIterator()  function
56   HashSetIterator(const HashSetIterator<OtherElem, OtherHashSetType>& other)  in HashSetIterator()  function
59   HashSetIterator& operator=(const HashSetIterator&) = default;
60   HashSetIterator& operator=(HashSetIterator&&) = default;
62   bool operator==(const HashSetIterator& other) const {
66   bool operator!=(const HashSetIterator& other) const {
70   HashSetIterator operator++() {  // Value after modification.
75   HashSetIterator operator++(int) {
76     HashSetIterator temp = *this;
95   friend bool operator==(const HashSetIterator<Elem1, HashSetType1>& lhs,
96                          const HashSetIterator<Elem2, HashSetType2>& rhs);
98   template <class OtherElem, class OtherHashSetType> friend class HashSetIterator;  variable
102 bool operator==(const HashSetIterator<Elem1, HashSetType1>& lhs,
103                 const HashSetIterator<Elem2, HashSetType2>& rhs) {
105       std::is_convertible<HashSetIterator<Elem1, HashSetType1>,
106                           HashSetIterator<Elem2, HashSetType2>>::value ||
107       std::is_convertible<HashSetIterator<Elem2, HashSetType2>,
108                           HashSetIterator<Elem1, HashSetType1>>::value, "Bad iterator types.");
114 bool operator!=(const HashSetIterator<Elem1, HashSetType1>& lhs,
115                 const HashSetIterator<Elem2, HashSetType2>& rhs) {
179   using iterator = HashSetIterator<T, HashSet>;
180   using const_iterator = HashSetIterator<const T, const HashSet>;
768   friend class HashSetIterator;  variable