How to write the implementation for Pack(std::istream& pack_input), void shuffle() and bool empty() const? Are my functions deal_one and reset correct?

#include "Card.h"

#include

#include

class Pack {

public:

// EFFECTS: Initializes the Pack to be in the following standard order:

// the cards of the lowest suit arranged from lowest rank to

// highest rank, followed by the cards of the next lowest suit

// in order from lowest to highest rank, and so on.

// NOTE: The standard order is the same as that in pack.in.

// NOTE: Do NOT use pack.in in your implementation of this function

Pack();

// REQUIRES: pack_input contains a representation of a Pack in the

// format required by the project specification

// MODIFIES: pack_input

// EFFECTS: Initializes Pack by reading from pack_input.

Pack(std::istream& pack_input);

// REQUIRES: cards remain in the Pack

// EFFECTS: Returns the next card in the pack and increments the next index

Card deal_one();

// EFFECTS: Resets next index to first card in the Pack

void reset();

// EFFECTS: Shuffles the Pack and resets the next index. This

// performs an in shuffle seven times. See

// https://en.wikipedia.org/wiki/In_shuffle.

void shuffle();

// EFFECTS: returns true if there are no more cards left in the pack

bool empty() const;

private:

static const int PACK_SIZE = 24;

std::array cards;

int next; //index of next card to be dealt

};

#endif

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Card Pack::deal_one() {

return cards[next++];

}

void Pack::reset() {

cards[next] = cards[0];

}