#ifndef QUEUE_H__
#define QUEUE_H__

#define MAXSIZE 5

typedef int datatype;

typedef struct node_st
{
    datatype data[MAXSIZE];
    int      head, tail;
} queue;


queue *qu_create( );

int qu_isempty( );

int qu_enqueue(queue *, datatype *);

int qu_dequeue(queue *, datatype *);

void qu_travel(queue *);

void qu_clear(queue *);

void qu_destroy(queue *);

#endif