Placing a class object inside a vector?

Question

I noticed that I can place a Class inside a vector; here is my program, where I am receiving the following error:

/out:blackjack.exe
blackjack.obj
blackjack.obj         


        

Answer 1

You'll have to instantiate the vector somewhere as it's a static. Basically, you want something like:

std::vector<Card> Card::Cards;

somewhere in your code.

Answer 2

Your cards vector is defined as static. That means it is effectively a global variable that you must define. This can be done by putting the following after the class definition of Card:

std::vector<Card> Card::Cards();

Answer 3

You are declaring the static member Cards inside the class definition, but you aren't defining it anywhere. Add a definition after the class definition:

vector<Card> Card::Cards;

Answer 4

You have to actually declare your vector.