C++ pass enum as parameter

Question

If I have a simple class like this one for a card:

class Card {
        public:
            enum Suit { CLUBS, DIAMONDS, HEARTS, SPADES };
            Card(Suit suit);
    };

and I then want to create an instance of a card in another file how do I pass the enum?

#include "Card.h"
using namespace std;
int main () {
    Suit suit = Card.CLUBS;
    Card card(suit);
    return 0;
}

error: 'Suit' was not declared in this scope

I know this works:

#include "Card.h"
using namespace std;
int main () {
    Card card(Card.CLUBS);
    return 0;
}

but how do I create a variable of type Suit in another file?

WTF, Card.CLUBS doesn't give you an error??? I'd think it needs to be Card::CLUBS... x_x — mingos, May 20 '10 at 00:29

score 14 · Accepted Answer · edited Sep 29 '14 at 17:30

14

Use Card::Suit to reference the type when not inside of Card's scope. ...actually, you should be referencing the suits like that too; I'm a bit surprised that Card.CLUBS compiles and I always thought you had to do Card::CLUBS.

edited Sep 29 '14 at 17:30

Andrew B

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answered May 20 '10 at 00:24

dash-tom-bang

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use Card.CLUBS as it will match with question. – kapilddit Jul 09 '12 at 13:23

score 7 · Answer 2 · answered May 20 '10 at 00:39

7

Suit is part of the class Card's namespace, so try:

Card::Suit suit = Card::CLUBS;

answered May 20 '10 at 00:39

beeduul

71
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OMG that is just not worth the effort. I am going to use an int and put a comment in the code. Can anybody think of a card game where Clubs change, yet a full reference for the enum is needed each time? – Paul McCarthy Apr 14 '21 at 22:02

C++ pass enum as parameter

2 Answers2

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