kateolenya

#ifndef PRIVATE_FUNCT_H
#define PRIVATE_FUNCT_H

struct Contact;

struct Contact * create_contact();
static void print_numbers( struct Contact * some_contact );
void delete_contact( struct Contact * my_points );

#endif /* PRIVATE_FUNCT_H */

kateolenya

#include "private_funct.h"
#include <stdio.h>
#include <stdlib.h>

struct Contact
{
    int mobile_number;
    int home_number;
};

kateolenya

#include "private_funct.h"

int main()
{
    struct Contact * Tony;
    Tony = create_contact();
    // print_numbers( Tony );
    // will cause compile time error
    delete_contact( Tony );
    return 0;

kateolenya

#include "private_var.h"
#include <stdio.h>

int main()
{
    struct Contact * Tony;
    Tony = create_contact();
    // printf( "Mobile number: %d\n", Tony->mobile_number);
    // will cause compile time error
    delete_contact( Tony );

kateolenya

#include "private_var.h"
#include <stdio.h>

int main()
{
    struct Contact * Tony;
    Tony = create_contact();

    int * mobile_number_is_here = (int *)Tony;
    printf("Mobile number: %d\n", *mobile_number_is_here);

kateolenya

#include "private_var.h"
#include <stdio.h>
#include <stdlib.h>

struct Contact
{
    int mobile_number;
    int home_number;
};

kateolenya

#include <iostream>
using namespace std;

class Contact
{
    private:
        int mobile_number;           // private variable
        int home_number;             // private variable
    public:
        Contact()                    // constructor

kateolenya

#include <iostream>
using namespace std;

class Contact
{
    private:
        int mobile_number;           // private variable
        int home_number;             // private variable
    public:
        Contact()                    // constructor

kateolenya

#include <iostream>
using namespace std;

class Contact
{
    private:
        int mobile_number;           // private variable
        int home_number;             // private variable
    public:
        Contact()                    // constructor

kateolenya

#include <iostream>
using namespace std;

class Contact
{
    private:
        int mobile_number;           // private variable
        int home_number;             // private variable
    public:
        Contact()                    // constructor