Inputting and outputting from structs

OKAY here I go again ...doin some more homework.. The teacher gave us some of the code and told us what the code we needed to write should do. So inevitably I am lost. I have a lot of code written most of it was what I took as what he wanted me to write when I spoke to him. I think I have written WAY too much and have gotten lost.
What I would like here is for you to simply tell me which of my function I do not need.

The assignment is that in the end I have a text file that I will open and read info into some records (st#) of type "Studentrec" I will have to compare 2 random records with a bool operator. I havent made it this far yet, I am simply trying to get the struct to hold data and print that data part of which is an ENUM.

I will appologize right now for the length of this.. Plz feel free to point and laugh at the noob. If you see a mistake I have made plz inform me in simple explanations. everything in RED is what the instructor gave us but if its wrong let me know plz

Code:

---


#include <iostream>
#include <cstring>
#include <cassert>
using namespace std;

enum year_in_school {freshman = 1, sophomore, junior, senior, special};
struct studentrec
{
      char name[20];
      int age;
      float gpa;
      year_in_school classification;
}; //End Struct

istream &operator >>(istream &is, year_in_school &yr);
ostream &operator <<(ostream &os, year_in_school yr);
istream &operator >>(istream &is, studentrec &r);
void print ( /* I have not made this function work yet everything I put here errors*/);

int main(void)
{
    studentrec st1 = {"bob dylan", 64, 3.6, senior};
    print (st1);
  /*this is just to test. the real prog will read from a text file I just wanted
          to see if everything was working*/
    system ("pause");
  return 0;
}


ostream &operator <<(ostream &os, year_in_school yr)
{
 switch(yr)
 {
  case freshman:  os << "Freshman";  break;
  case sophomore: os << "Sophomore"; break;
  case junior:    os << "Junior";    break;
  case senior:    os << "Senior";    break;
  case special:  os << "Special";  break;
  default:        os << "Classification Unspecified" << endl; break;
 }
 return  os;
} //end year_in_school OS

istream &operator >>(istream &is, year_in_school &yr)
{
 int year;
 
 is >> year;
 if (is.eof()) return is;
  yr = static_cast <year_in_school> (year);
return is;
} //end yr IS


istream &operator >>(istream &is, studentrec &r)
/* Function reads a student rec, allowing 20 characters including spacesin a name
  year_in_school is read with a user supplie operator >>. */

{
  int temp;
  char filler[80];
    /* Reads 19 chars or to an end of line whichever comes first
      does not remove end of line. Adds a null character */
    is.get(r.name,20);
    if(is.eof())
      return is;
    is >> r.age >> r.gpa >> r.classification;
  /* To properly remove end of line char so next read of string works correctly
      reads 79 characters including end of line, adding null. End of line not stored. */
    is.getline(filler,80);
  return is;
}
void print (/* I have not made this function work yet everything I put here errors*/)
{
    int i;
 for(i=0; i<20; i++)
    cout << name[i] << endl;   
return;
}

---

In the end his instructions are
1. read the Students.txt file into an array and print the orig list
EX from The text file: Maynard, Jill 22 3.15 3
he wants the year_in_school (enum) to be input as an int. so far I havent been able to make it do this.
2. sort the array using the < operation (if you need ==, >= or > define them also).
I have no Idea what he is talking about here but I will ask him. or if you can offer a short simple explanation
3. Print sorted array.
I dont know if he only wants the names to be printed here or all the information printed and sorted by names again I have to talk to him again.

That will all come later for now if you could just tell me what to cut out of this and maybe a description of what I need to write.. Again I DO NOT expect anyone to do my homework for me just to aid me allong. If there is something that I will absolutly need and you can give me a lil piece of code along with an explanation that would be Wonderful.

Thank you.

Forget your Print function and use this instead ...

Code:

---

ostream &operator <<(ostream &os, const studentrec &r);

ostream &operator <<(ostream &os, const studentrec &r)
{
    os << "Name : " << r.name << endl;
    os << "Age : " << r.age << endl;
    // Depends on how you want to format a GPA, as I'm English, not a septic, I don't know
    // how you format a GPA, but I'm guessing something like 3.1 ?
    os << "GPA : ";
    os.precision(2);
    os  << r.gpa << endl;
    os << "Classification : " << r.classification << endl;
    os << endl;

    return( os );
}

---

Also you might want to do something like this ...

Code:

---

istream &operator >>(istream &is, year_in_school &yr)
{
    int year;
 
    is >> year;

    switch( year )
    {
        case freshman:
            yr = freshman;
            break;
        case sophomore:
            yr = sophomore;
            break;       
        case junior:
            yr = junior;
            break;
        case senior:
            yr = senior;
            break;
        case special:
            yr = special;
            break;
        default:
            // What are you going to do if it isn't a valid value?
            break;
    };

    return( is );
}

---

Also someone ought to tell your lecturer that is quite a common convention to use upperacase for enum values. And that he ought to use "const" a bit more!