链式队列插入元素实现

 struct QueueNode {int Data;struct QueueNode* next;};struct QueueLink {struct QueueNode* front;struct QueueNode* rear;};/*** @brief 在队列中插入元素e* @param[in] queue 待插入元素队列* @param[in] e 插入元素* @return 返回函数执行结果* - 0 表示操作成功* - -1 表示操作失败* @author [e-mail] * http://blog.csdn.net/rabbit729 * @version 1.0 * @date 2009-03-10 */int EnQueue(QueueLink* queue, const int e){if (NULL == queue){cout<<"point is null!"<<endl;return -1;}QueueNode* p = new QueueNode;if (NULL == p){cout<<"apply memory is error!"<<endl;return -1;}p->Data = e;p->next = NULL;queue->rear->next = p;queue->rear = p;return 0;}