#include <iostream>
#include <iomanip>
"


using namespace std;

class CString							//class containing a string and functions to access the string
{
public:
		CString(char *p);				// allocates  memory  and copies p to m_pString
		virtual ~CString();								// deletes the m_pString
		char *GetString(){return m_pString ;}		//inline function is already implemented
		virtual ConvertString(){ cout << "nothing\n" ;}	//inline function is done here
private:
		char *m_pString;				// the character data string
};

class CNumericString : public CString				//derived from CString
{								//contains the numeric value of its base
public:
		CNumericString(char *p);			//its base constructor is initialized from here
		~CNumericString();				// does nothing
		int ConvertString();				// Converts the string of its base class to integer,
								// using atoi and saves it
								// in m_numericString.
private:
		int m_numericString;				// the numeric string of its base
};

void main()
{
		CNumericString str("12345");
		cout << str.GetString() << endl;
		cout << str.ConvertString() << endl;
}