// Ex8_05.cpp
  // Overloaded copy operator perfection
  include <iostream>
  include <cstring>
  using std::cout;
  using std::endl;
  
  class CMessage
  {
    private:
      char* pmessage;                    // Pointer to object text string
  
    public:
      // Function to display a message
      void ShowIt() const
      {
        cout << endl << pmessage;
      }
  
      //Function to reset a message to *
      void Reset()
      {
        char* temp = pmessage;
        while(*temp)
          *(temp++) = '*';
      }
  
      // Overloaded assignment operator for CMessage objects
      CMessage& operator=(const CMessage& aMess)
      {
        if(this == &aMess)               // Check addresses, if equal
          return *this;                  // return the 1st operand
  
        // Release memory for 1st operand
        delete[] pmessage;
        pmessage = new char[ strlen(aMess.pmessage) +1];
  
        // Copy 2nd operand string to 1st
        strcpy(this->pmessage, aMess.pmessage);
  
        // Return a reference to 1st operand
        return *this;
      }
  
      // Constructor definition
      CMessage(const char* text = "Default message")
      {
        pmessage = new char[ strlen(text) +1 ]; // Allocate space for text
        strcpy(pmessage, text);                 // Copy text to new memory
      }
  
      // Destructor to free memory allocated by new
      ~CMessage()
      {
        cout << "Destructor called."     // Just to track what happens
             << endl;
        delete[] pmessage;               // Free memory assigned to pointer
      }
  };
  
  int main()
  {
    CMessage motto1("The devil takes care of his own");
    CMessage motto2;
  
    cout << "motto2 contains - ";
    motto2.ShowIt();
    cout << endl;
  
    motto2 = motto1;                       // Use new assignment operator
  
    cout << "motto2 contains - ";
     motto2.ShowIt();
    cout << endl;
  
    motto1.Reset();                      // Setting motto1 to * doesn't
                                         // affect motto2
  
    cout << "motto1 now contains - ";
    motto1.ShowIt();
    cout << endl;
  
    cout << "motto2 still contains - ";
    motto2.ShowIt();
    cout << endl;
  
    return 0;
  }