circular_queue.cpp

#include <iostream>
#define MAX 10
using namespace std;

struct Queue {
	int front, rear, counter, data[MAX];
} Antrian;

void init() {
	Antrian.rear = -1;
	Antrian.front = 0;
	Antrian.counter = 0;
}

bool isEmpty() {
	return Antrian.counter == 0;
}

bool isFull() {
	return Antrian.counter == MAX;
}

int circ(int val) {
	return (val + 1) % MAX;
}