Need help with my linked list program

[mysiarobin1987]

Please note I am not trying to have someone do my homework for me. I just am struggling with this program and need help with the functions. I already read the file and created my list. Thanks and here's the assignment:
Program Summary
Write a C++ object-oriented program to manage a file system for students at Norfolk State University:
First Name – string
Last Name – string
Student ID – unsigned integer
Email – string
GPA - float
The program will manipulate the student list based on students from the file students.dat
Class requirements
1. Create a student class or struct based on the student structure
2. Create a students class which contains two private members – a pointer to a list of students and a function to print a student’s record. The students class will also provide the following functionality.
a. Load data from a data file into a student list
b. Retrieve and print a student from the student list
c. Insert a student into the student list
d. Delete a student from the student list
e. Print the contents of a student record
f. Print the contents for a list of students
g. Sort the student list by last Name
h. Sort the student list by GPA
Processing requirements
1. Load the students file students.dat
2. Create a menu to carry out the given operations
3. Implement input validation to avoid erroneous program errors
Structure of the file
students.dat – First Name, Last Name, Student ID, Email, GPA

using namespace std;

#include <iostream>
#include <fstream>
#include<string>
struct student;
typedef student * studentptr;
struct studentType
{
	int info;
	studentType *link;
};
studentType *head, *tail;

struct student
{
	string firstName;
	string lastName;
	unsigned int studentID;
	string email;
	float gpa;
	studentptr next;
};

class studentsProc // Definition of class named studentsProc
{
	public:
		studentsProc();
		void loadList(studentptr & students); // Function that loads data from a data file into a student list
		void removeStudent(studentptr & students);
	
	private:
		student * students; // Pointer to the list of students
		void printList() const; //Print the contents of the list
};

studentsProc::studentsProc()
{
	head = NULL;
}
void studentsProc::loadList(studentptr & students)
{
	ifstream infile;
	infile.open("students.dat");
	students = NULL; //head pointer points no where
	student temp;
	studentptr temp_ptr;
	while (!infile.eof())
	{
		temp_ptr = new student;
		infile >> temp_ptr->firstName >> temp_ptr->lastName >> temp_ptr->studentID >> temp_ptr->email >> temp_ptr->gpa;//place data in the node
		temp_ptr->next = students;
		students = temp_ptr;
	}
	infile.close();
	
}

int main()
{
	return 0;
}

[Thomas1965]

You should enable all warnings in your compiler settings.
main.cpp(88): warning C4458: declaration of 'students' hides class member

Your loadList function shouldn't receive a parameter (or maybe a filename)
but store the data in the member variable students.