循环队列的数组实现

几个月前，去一软件公司面试，要求写一个循环队列，要求能编译，功能基本全。class circular_queue{private:enum {max_len = 10};int buffer[max_len];int head;int rear;public:circular_queue():head(0),rear(0){};virtual ~circular_queue(){};bool is_empty(){return head == rear;}bool is_full(){return head == ((rear+1) % max_len);}bool push(int t){if(is_full())return false;buffer[rear] = t;rear = (rear+1) % max_len;return true;}int front(){return buffer[head];}void pop(){if (is_empty()) return;head = (head+1) % max_len;}};