#include <iostream> // std::cout
#include <algorithm> // std::shuffle
#include <array> // std::array
#include <random> // std::default_random_engine
#include <chrono> // std::chrono::system_clock
struct Card{
int value;
enum Suit {spades, hearts, clubs, diamonds};
Suit suit;
friend std::ostream& operator<<(std::ostream& os, const Card& card);
};
std::ostream& operator<<(std::ostream& os, const Card& card){
switch(card.value){
case 11:
os<<"Jack of "; break;
case 12:
os<<"Queen of "; break;
case 13:
os<<"King of "; break;
case 1:
os<<"Ace of "; break;
default:
os<<card.value<<" of "; break;
}
switch(card.suit){
case card.spades:
os<<"Spades"; break;
case card.hearts:
os<<"Hearts"; break;
case card.clubs:
os<<"Clubs"; break;
case card.diamonds:
os<<"Diamonds";
}
return os;
}
int main () {
const size_t numCards = 52;
std::array<Card, numCards> cards;
for(size_t i=0; i<numCards; ++i){
cards[i].value=i%13+1;
cards[i].suit=Card::Suit(i/13);
}
// obtain a time-based seed:
unsigned seed = std::chrono::system_clock::now().time_since_epoch().count();
shuffle (cards.begin(), cards.end(), std::default_random_engine(seed));
std::cout << "shuffled elements:\n";
for (auto& x: cards) std::cout << x << '\n';
return 0;
}
