Thread: Linked List ( Return first element in a queue)

"Hello C world",

I am trying to write a function to return the first element of a link list queue. I am not real sure how to implement this. I have include a copy of the struct for my Node & queue. Thanks in advance for the help.

-DeeMan

Code:

typedef struct event_Node {
    void *data;
    double arri_time;
    double serv_time;
    double depart_time;
    double start_o_serv;
    double wait_time;
    bool arri_flag;
    bool depart_flag;
    bool wait_flag;
    bool being_serv_flag;
    struct _QueueNode *link;
} event_Node;

typedef struct _Queue {
    int size;
    QueueNode *head;
    QueueNode *tail;
} Queue;

void *queue_front(Queue *q)
{
    //return q->size ? 
    q->head->data : NULL;// this is where I am stuck
}