kateolenya

#include <iostream>
using namespace std;

class Device {
    public:
        int serial_number = 12345678;

        void turn_on() {
            cout << "Device is on" << endl;
        }

kateolenya

#include <iostream>
using namespace std;

class Device {
    public:
        virtual void turn_on() = 0;
};

class Laptop: public Device {
    public:

kateolenya

#include <iostream>
using namespace std;

class Device {
    public:
       void turn_on() {
            cout << "Device is on." << endl;
        }
        virtual void say_hello() = 0;
};

kateolenya

#include <iostream>
using namespace std;

class Computer {
    private:
        void turn_on() {
            cout << "Computer is on." << endl;
        }
};

kateolenya

#include <iostream>
using namespace std;

class Device {
    public:
        Device() {
            cout << "Device constructor called" << endl;
        }
        void turn_on() {
            cout << "Device is on." << endl;

kateolenya

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

struct Device {
    int serial_number;
    int sizeof_memory;
};

void print_values( struct Device * some_device ) {

kateolenya

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

struct Device {
    int serial_number;
    int sizeof_memory;
};

void print_values( struct Device * some_device ) {
    printf("Serial number: %d, ", some_device->serial_number);

kateolenya

#include <iostream>
using namespace std;

class Device {
    public:
        virtual void turn_on() = 0;
};

class Computer {
    public:

kateolenya

#include <iostream>
using namespace std;

class Device {
    public:
        int serial_number = 12345678;

        void turn_on() {
            cout << "Device is on" << endl;
        }

kateolenya

#ifndef PRIVATE_VAR
#define PRIVATE_VAR

struct Contact;

struct Contact * create_contact();
void delete_contact( struct Contact * some_contact );

#endif /* PRIVATE_VAR */