Using c++ Create a queue using a linked list as your container and use a class. The system must have enqueue and dequeue operations and functions such as, isfull() and isempty(). Make sure it has an...

Using c++ Create a queue using a linked list as your container and use a class. The system must have enqueue and dequeue operations and functions such as, isfull() and isempty(). Make sure it has an input and
10 data
will be accepted.

Can anyone show me the correct way i tried some like this

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#include
#include
#include

#define CAPACITY 100

typedef struct node
{
    int data;
    struct node * next;
} Queue;

unsigned int size = 0;

int enqueue(Queue ** rear, Queue ** front, int data);
int dequeue(Queue ** front);
int getRear(Queue * rear);
int getFront(Queue * front);
int isEmpty();
int isFull();

int main()
{
    int ch, data;
    Queue *rear, *front;

    rear  = NULL;
    front = NULL;

    while (1)
    {

        printf("--------------------------------------------\n");
        printf("  QUEUE LINKED LIST IMPLEMENTATION PROGRAM  \n");
        printf("--------------------------------------------\n");
        printf("1. Enqueue\n");
        printf("2. Dequeue\n");
        printf("3. Size\n");
        printf("4. Get Rear\n");
        printf("5. Get Front\n");
        printf("0. Exit\n");
        printf("--------------------------------------------\n");
        printf("Select an option: ");

        scanf("%d", &ch);

        switch (ch)
        {
            case 1:
                printf("\nEnter data to enqueue: ");
                scanf("%d", &data);

                if (enqueue(&rear, &front, data))
                    printf("Element added to queue.");
                else
                    printf("Queue is full.");

                break;

            case 2:
                data = dequeue(&front);

                if (data == INT_MIN)
                    printf("Queue is empty.");
                else
                    printf("Data => %d", data);

                break;

            case 3:

                if (isEmpty())
                    printf("Queue is empty.");
                else
                    printf("Queue size => %d", size);

                break;

            case 4:
                data = getRear(rear);

                if (data == INT_MIN)
                    printf("Queue is empty.");
                else
                    printf("Rear => %d", data);

                break;

            case 5:

                data = getFront(front);

                if (data == INT_MIN)
                    printf("Queue is empty.");
                else
                    printf("Front => %d", data);

                break;

            case 0:
                printf("Exiting from app.\n");
                exit(0);

            default:
                printf("Invalid choice, please input number between (0-5).");
                break;
        }

        printf("\n\n");
    }
}

int enqueue(Queue ** rear, Queue ** front, int data)
{
    Queue * newNode = NULL;

    if (isFull())
    {
        return 0;
    }

    newNode = (Queue *) malloc (sizeof(Queue));

    newNode->data = data;

    newNode->next = NULL;

    if ( (*rear) )
    {
        (*rear)->next = newNode;
    }

    *rear = newNode;

    if ( !( *front) )
    {
        *front = *rear;
    }

    size++;

    return 1;
}

int dequeue(Queue ** front)
{
    Queue *toDequque = NULL;
    int data = INT_MIN;

    if (isEmpty())
    {
        return INT_MIN;
    }

    toDequque = *front;
    data = toDequque->data;

    *front = (*front)->next;

    size--;

    free(toDequque);

    return data;
}

int getRear(Queue * rear)
{

    return (isEmpty())
            ? INT_MIN
            : rear->data;
}

int getFront(Queue * front)
{

    return (isEmpty())
            ? INT_MIN
            : front->data;
}

int isEmpty()
{
    return (size <=>
}

int isFull()
{
    return (size > CAPACITY);
}

My problem i need the correct way i need help