Passing structures between functions

I am new to C++, so please explain why what you submit works.

I am trying to pass a structure between functions. I have 3 files, one with a small main function. The only thing it does is call my menu:

#include "pim.hpp"

main()
{
menu_choice();
return 0;
}

I have a header file which defines everything:

#include <iostream>
using namespace std;

/* CLS Added to clear screen after showing calculations */
#define CLS system("cls")

const int LAST_NAME = 26;
const int FIRST_NAME = 16;
const int MI = 2;
const int ADDRESS = 51;
const int CITY = 31;
const int STATE = 26;
const int PHONE = 13;

struct contact
{
char lname[LAST_NAME];
char fname[FIRST_NAME];
char mi[MI];
char address[ADDRESS];
char city[CITY];
char state[STATE];
int zip;
char phone[PHONE];
int birthYear;
}temp;


// Define Prototypes
void print_menu();
void menu_choice(void);
void add_contact();
void print_contact();

This is the main part of my program:

#include "pim.hpp"



// Prints the main menu.

void print_menu()
{
CLS;

// Print Menu.

<< "Personal Information Manager (PIM) Program " << endl
<< endl << endl
<< "(1) Add New Contact" << endl
<< "(2) Print Contact Information" << endl
<< "(3) Exit" << endl << endl << endl;
}

// Menu Option Function:

void menu_choice()
{
int choice;

while (1)
{

print_menu();

cout << "Select the operation to perform: " << endl;
cin >> choice;

while ((choice <1) || (choice > 3))
{
CLS;

cout << endl << "Invalid Choice!" << endl
<< "Please Select (1) to Add New Contact"
<< endl
<< "Please Select (2) to Print Contact Information"
<< endl
<< "Please Select (3) to EXIT program." << endl

<< endl << endl << "Please Re-enter your choice: ";
cin >> choice;
}


switch (choice)
{
case 1: add_contact();
break;

case 2: print_contact();
break;

case 3: exit(EXIT_SUCCESS);
break;
}
}
}
// Add_contact Function
void add_contact()
{

contact * c = new contact;

CLS;

cin.get();

cout << "Enter Last Name: ";
cin.getline(c->lname, LAST_NAME);
cout << endl;

cout << "Enter First Name: ";
cin.getline(c->fname, FIRST_NAME);
cout << endl;

cout << "Enter MI: ";
cin.getline(c->mi, MI);
cout << endl;

cout << "Enter Street Address: ";
cin.getline(c->address, ADDRESS);
cout << endl;

cout << "Enter City: ";
cin.getline(c->city, CITY);
cout << endl;

cout << "Enter State: ";
cin.getline(c->state, STATE);
cout << endl;

cout << "Enter ZIP: ";
(cin >> c->zip).get();
cout << endl;

cout << "Enter Phone Number (Including Hyphens): " << endl
<< "Example: 123-45-6789 ";
cin.getline(c->phone, PHONE);
cout << endl;

cout << "Enter Year of Birth: ";
(cin >> c->birthYear).get();
cout << endl;
}

// Print Contact Function

void print_contact()
{

CLS;

cout << "Name Address Phone Born" << endl
<< "___________________________________" << endl;

cout.width(25);
cout.setf(ios_base::left, ios_base::adjustfield);
cout << c->name; //error line
}

I get 2 errors when I run this program, and both are due to the fact that I cannot determine how to pass the structure between the add_contact function and the print_contact funtcion. The 2 errors are:

error C2065: 'c' : undeclared identifier

error C2227: left of '->name' must point to class/struct/union

I don't expect anyone to do my work for me, however I am completely stuct here. Please help,
Thanks,
Alan
I am using visual C++ 6.0 if that helps.
I am sorry the code does not seem to line up. But hopefully it is enough to describe the problem.

use VB code to make your code line up properly

Code:

---


struct FOO  {
    blah, blah
};

void do_stuff(FOO *foo)  // '*' tells the compiler is is receiving a memory address instead of the actual function
{
    blah blah
}

void do_more_stuff(FOO *foo)
{
    blah blah
}

main()
{
    FOO foo;
    do_stuff(&foo);  // '&' is the address of operator
    do_more_stuff(&foo);

    return 0;
}

---

Either make the new contact a global variable (not my prefered approach), pass a given struct back and forth between functions(doable if you are only going to use a single struct at a time), or pass a container that can hold a group of contacts back and forth (my preference). Depending on your preference the container could be an array, or a list, or a stack, or whatever. I will use a dynamically allocated array.

struct contact
.
.
.
void add_contact(contact *);

int main(){
contact array = new contact[100];
menu_options();
delete [] array;
return 0;
}

void add_contact(contact * array)
{
int i = sizeof array/sizeof array[0];
cout << "enter id number" << endl;
cin >> array[i - 1].id;
.
.
.