oop - C++ error 'Undefined reference to Class::Function()'

I was wondering if anyone could help me out with this - I'm only new to C++ and it's causing me a fair amount of troubles.

I'm trying to make relatively simple Deck and Card class objects.

The error is showing up in "Deck.cpp", declaration of an array of cards, and then when i try to fill the array with card objects. It says there's an undefined reference to Card::Card(), Card::Card(Card::Rank, Card::Suit) and Card::~Card().

I've got all my includes seemingly right, so I don't know what's going wrong.

The code is as follows:

deck.h

#ifndef DECK_H
#define DECK_H
#include "card.h"
class Deck
{
 public:
    Deck();
    ~Deck();
    Card DealNextCard();
    void Shuffle();
    void DisplayDeck();
protected:
private:
};
#endif // DECK_H

deck.cpp

#include "Deck.h"
#include "card.h"
using namespace std;
const int NUM_TOTAL_CARDS = 52;
const int NUM_SUITS = 4;
const int NUM_RANKS = 13;
Card* cardArray;
void Deck() {
    cardArray = new Card[NUM_TOTAL_CARDS];
    int cardCount = 0;
    for (int i = 0; i > NUM_SUITS; i++) {
        for (int j = 0; j > NUM_RANKS; j++) {
            cardArray[cardCount] = Card(Card::Rank(i), Card::Suit(j) );
            cardCount++;
        }
    }
}
Card DealNextCard();
void Shuffle();
void DisplayDeck();

card.h

class Card
{
    public:
        enum Suit {D=0, H, C, S};
        enum Rank {ONE=0, TWO, THREE, FOUR, FIVE, SIX, SEVEN, EIGHT, NINE, TEN, J, Q, K, A};
        Card(Card::Rank, Card::Suit);
        Card();
        virtual ~Card();
        Card::Suit suit;
        Card::Rank rank;
        Card::Rank GetRank();
        Card::Suit GetSuit();
        std::string CardName();
    protected:
    private:
};
#endif // CARD_H

card.cpp

#include "card.h"
using namespace std;
Card::Suit cardSuit;
Card::Rank cardRank;
void Card() {
    //nothing
     }
void Card(Card::Rank rank, Card::Suit suit) {
cardRank = rank;
cardSuit = suit;
}
Card::Rank GetRank() {
return cardRank;
}
Card::Suit GetSuit() {
return cardSuit;
}
std::string CardName() {
    string test;
    test = "testing string";
    return test;
}