C++ coding. Need the code(in c++) for the following functions of iterator where

Question

 C++ coding. Need the code(in c++) for the following functions of iterator where it says fill in here. code needs to be in C+++. Please help... public:     /*     class iterator {         public:             iterator(const persistent_vector pv, bool end=false):                 m_pv(pv), m_index(end?pv.m_size:0) {}             //             // This operator is used to get the value             // that the iterator is currently pointing at             //             const T&  operator *() {                <FILL IN HERE>             }             //             // This operator is used to move the iterator             // to the next value in the container             //             iterator& operator ++() <               <FILL IN HERE>             }             //             // This operator is used to compare this              // iterator to another one. It is mainly             // used to determine when to stop iterating.             //             bool      operator !=(const iterator& other) {                <FILL IN HERE>             }         private:             //             // Store enough information to keep track of where you are             //     };      //     // This returns an iterator pointing to the first element     // of the persistent vector.     //     iterator begin() { return <FILL IN HERE> }     //     // This returns an iterator effectively pointing to the      // element _after_ the last element in the persistent     // vector.     //     iterator end()   { return <FILL IN HERE> }      */ 

Explanation / Answer

class iterator { public: iterator(const persistent_vector pv, bool end=false): m_pv(pv), m_index(end?pv.m_size:0) {} // // This operator is used to get the value // that the iterator is currently pointing at // const T& operator *() { return T* get()const; } // // This operator is used to move the iterator // to the next value in the container // iterator& operator ++()

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