Before:

class person
{
   public:
      person();
};

class student: public person
{
   public:
      student( string inName, unsigned short inAge, double inGpa );

   private:
      string name;
      unsigned short age;
      double gpa;
};

class employee: public person
{
   public:
      employee( string inName, unsigned short inAge, double inPay );

   private:
      string name;
      unsigned short age;
      double pay;
};