Use bit field to create class DeckOfCards that represents a deck of playing cards - C++ Operator

C++ examples for Operator:Bit Operator

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Description

Use bit field to create class DeckOfCards that represents a deck of playing cards

Demo Code

                                                                                                                                                                                                                                            
#include <vector>  
#include <iostream> 
#include <iomanip> 
using namespace std; 
                                                                                                                                                                                                                                            
struct Card //from   w  w w  .jav a2s .  co m
{ 
    unsigned face : 4; // 4 bits; 0-15 
    unsigned suit : 2; // 2 bits; 0-3 
    unsigned color : 1; // 1 bit; 0-1 
};
                                                                                                                                                                                                                                            
class DeckOfCards { 
public: 
    static const int faces = 13; 
    static const int colors = 2; // black and red 
    static const int numberOfCards = 52; 
                                                                                                                                                                                                                                            
    DeckOfCards(); // constructor initializes deck 
    void deal(); // deals cards in deck 
                                                                                                                                                                                                                                            
private: 
    vector< Card > deck; // represents deck of cards 
};
                                                                                                                                                                                                                                            
                                                                                                                                                                                                                                            
DeckOfCards::DeckOfCards() { 
   for ( int i = 0; i < numberOfCards; ++i ) { 
       deck[ i ].face = i % faces; // faces in order 
       deck[ i ].suit = i / faces; // suits in order 
       deck[ i ].color = i / ( faces * colors ); // colors in order 
   }
}
                                                                                                                                                                                                                                            
void DeckOfCards::deal() { 
   for ( int k1 = 0, k2 = k1 + numberOfCards / 2; 
       k1 < numberOfCards / 2 - 1; ++k1, ++k2 ) 
       cout << "Card:" << setw( 3 ) << deck[ k1 ].face 
          << "  Suit:" << setw( 2 ) << deck[ k1 ].suit 
          << "  Color:" << setw( 2 ) << deck[ k1 ].color 
          << "     " << "Card:" << setw( 3 ) << deck[ k2 ].face 
          << "  Suit:" << setw( 2 ) << deck[ k2 ].suit 
          << "  Color:" << setw( 2 ) << deck[ k2 ].color << endl; 
}
                                                                                                                                                                                                                                            
int main() 
{ 
   DeckOfCards deckOfCards; // create DeckOfCards object 
   deckOfCards.deal(); // deal the cards in the deck 
}

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