// student6.cc
#include <iostream>
#include <string>
using namespace std;

class Student
{
  private:
    string Name;
    bool Auditor;
    double *Grades;
    
  public:
    // Constructor
    Student(string theName, bool isAuditor = false)
           :Name(theName), Auditor(isAuditor)
    {
      Grades = new double[3];
      for (int i=0; i<3; i++) Grades[i] = 0.0;
    }
    // Destructor
    ~Student()
    {
      delete [] Grades; // delete the dynamically allocated array
    } 
    void SetGrade(int whichGrade, double grade)
    {
      Grades[whichGrade] = grade;
    }
    void PrintGrades(void) {
      if (Auditor) cout << "Auditor ";
      else cout << "Student ";
      cout << Name << " grades: ";
      cout << Grades[0] << "," << Grades[1] << "," << Grades[2] << endl;
    }
    void PrintCourseGrade(void)
    {
      if (Auditor) cout << "Auditor ";
      else cout << "Student ";
      cout << Name << " has course grade ";
      cout << (Grades[0] + Grades[1] + Grades[2]) / 3.0 << endl;
    }
}; // done defining and declaring Student class

// Not safe; when Input goes out of scope the destructor will be called
// but the destructor deletes our Grades array.  The original objects
// (Student1 and Student2 in main() below) will have their Grades pointers
// pointing to invalid memory after this function is called!  This is a
// problem when they also go out of scope at the end of main() --- the
// destructors will then try to free Grades a second time!
void PrintStudentGrades(Student Input)
{
  Input.PrintGrades();
  Input.PrintCourseGrade();
}

int main()
{
  Student Student1("John Smith"); // no 2nd argument given, assumes default
  Student1.SetGrade(0, 80.0);
  Student Student2("Jane Doe", true);
  Student2.SetGrade(0, 100.0);
  PrintStudentGrades(Student1);
  PrintStudentGrades(Student2);
}