So I have two classes, a game class and a blackjack class, they both look as follows:

game.h

Code:

#ifndef GAME_H
#define GAME_H

#include "card.h"

class Game {

        private:
                int m_card_array[52];
                void shuffle();
        public:
                Game();
                virtual void run() = 0;
                virtual Card draw() = 0;

};

#endif


game.cpp

Code:

#include <SDL/SDL.h>
#include <iostream>
#include "game.h"
#include <stdlib.h>

Game::Game() {

        /*
          I am not using traditional number of 1-52 so I cannot populate in that
          manner.
          1-13 = clubs
          21-33 = hearts
          41-53 = spades
          61-73 = diamonds
        */

        int i = 1;
        for(int j = 0; j < 13; j++) {
                m_card_array[j] = i;
                i++;
        }

        i = 21;
        for(int j = 13;j < 26;j++) {
                m_card_array[j] = i;
                i++;
        }

        i = 41;
        for(int j = 26; j < 39; j++) {
                m_card_array[j] = i;
                i++;
        }

        i = 61;
        for(int j = 39; j < 52; j++) {
                m_card_array[j] = i;
                i++;
        }

}

void Game::shuffle() {

        srand(time(NULL));
        int temp = 0;
        int j = 0;
        for(int i = 51; i >= 0; i++) {
                j = (rand() % 51);
                temp = m_card_array[i];
                m_card_array[i] = m_card_array[j];
                m_card_array[j] = temp;
        }

}


blackjack.h

Code:

#ifndef BLACKJACK_H
#define BLACKJACK_H

#include "game.h"
#include "card.h"

class Blackjack : public Card {

        private:
        public:
                void run();
                Card draw();

};

#endif


blackjack.cpp

Code:

#include "blackjack.h"
#include "card.h"
#include <iostream>


void Blackjack::run() {
        Game::shuffle();
        std::cout << "You are running blackjack!" << std::endl;
}

Card Blackjack::draw() {
}


When I try to compile I get the following error:
cannot call member function ā€˜void Game::shuffle()ā€™ without object

I have tried making shuffle protected, but that didn't work either. I have tried searching for the answer already, but can not find one. Is there anyway I can call the shuffle method from within my blackjack class?
What fixed it for me was to change
Code:
class Blackjack : public Card {
to
Code:
class Blackjack : public Game {
Then gcc started complaining about not having a main() function, so it still wouldn't compile, but that fixed the access errors. I also had to change
Code:
class Game {

        private:
to
Code:
class Game {

        protected:
Wow, as long as I have been trying to figure this out how could I have missed something that simple. Thank you for finding that.
  
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