// Ch. 12 Demo Program #3
// Mr. Minich
// purpose - to illustrate the use of a struct and a user-defined function

#include <iostream.h>
#include "M:\C++ Programming\AP classes\apstring.h"

struct Student
{
	apstring name;
	int gradeLevel;
	char grade;
};

void getNameAndGradeLevel(Student &);

int main()
{
	Student teachersPet;
	Student classHacker;

	getNameAndGradeLevel(teachersPet);
	getNameAndGradeLevel(classHacker);

	cout << "The teachers pet's grade is " << teachersPet.grade << endl;
	cout << "The class clown's grade is " << classHacker.grade << endl;

	return 0;
}

void getNameAndGradeLevel(Student & aStudent)
{
	cout << "Enter a name and grade level: ";
	cin >> aStudent.name;
	cin >> aStudent.gradeLevel;

	if (aStudent.name == "Mitnick")
	{
		aStudent.grade = 'A';
	}
}

// The lazy teacher may have asked the class hacker to write the user-defined function getNameAndGradeLevel.
// The class hacker (Kevin Mitnick) realizes that he had a chance to change the value of the member variable grade so
//	he added the if statement to the getNameAndGradeLevel function to give himself an A.

// The teacher could have protected the grade member variable by placing it into the private partition of a struct.

//		struct Student
//		{
//			string name;
//			int gradeLevel;
//
//		private:
//			char grade;
//		};
//
//	Now the hacker's assignment statement would cause a compile error and not be allowed. Actually, the private partition
//		of a struct definition is not meant to be used to keep hackers from accessing certain variables (i.e. data) but
//		rather professional programmers like to protect themselves from accidentally changing certain member variables
//		so they protect them in this way.