#pragma once

struct QueueNodeT;

using ItemT = int;
const ItemT DEFAULT_ITEM{0};

class QueueT {
    public:
        QueueT();
        QueueT(const QueueT & other);
        ~QueueT();

        QueueT & operator = (const QueueT & other);

        void Enqueue(ItemT item);
        void Dequeue(void);
        ItemT Front(void) const;
        size_t Size(void) const;

    private:
        void CopyQueue(const QueueT & other);

        size_t count;
        QueueNodeT *front, *rear;
        
};