class BString
{
   friend BString operator+ (const BString& x, const BString& y);

   friend bool operator< (const BString& x, const BString& y);
   friend bool operator> (const BString& x, const BString& y);
   friend bool operator<=(const BString& x, const BString& y);
   friend bool operator>=(const BString& x, const BString& y);
   friend bool operator== (const BString& x, const BString& y);
   friend bool operator!= (const BString& x, const BString& y);

public:
   BString();		// default constructor -- init to empty string
   BString(const char * s);	// conversion constructor FROM a c-string
   BString(int x);		// consversion from int to BString

   ~BString();		// destructor for final cleanup

   // we need our DEEP COPY functions!
   BString(const BString& s);			// copy constructor
   BString& operator=(const BString& s);	// assignment operator
  
   int GetLength() const;		// return the length (size)



private:
   char* str;		// pointer to our dynamic array of characters
   int size;		// the size of our string (number of chars)
			//  we will ALLOCATE only to the size needed
};