C++ Tutorial/Operator Overloading/overloading Dereference operator

Overloading De-reference operator

<source lang="cpp">#include <iostream> using std::cout; using std::endl; class MyType {

 public:
   MyType (int arg = 0) : x(arg) {}
   bool operator!=(const MyType& arg) const {
     return x != arg.x;
   }
   int operator*() const { return x; }     
   MyType& operator++() {                 
     ++x;
     return *this;
   }
   const MyType operator++(int) {         
     MyType temp(*this);                  
     ++x;
     return temp;                          
   }
 private: 
   int x;

};

template <typename Iter> double average(Iter a, Iter end) {

 double sum = 0.0;
 for( ; a != end ;){
   cout << *a++;
   sum += *a++;
 }  
   
 return sum; 

} int main() {

 MyType first(1);
 MyType last(11);
 cout << average(first, last) << endl;
 return 0;

}</source>

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