77 lines
1.7 KiB
C
77 lines
1.7 KiB
C
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/**
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* @file main.c
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* @author guishenking (guishenking@outlook.com)
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* @brief
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* @version 0.1
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* @date 2025-08-15
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*
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* @copyright Copyright (c) 2025
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*
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*/
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#include "queue.h"
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#include <stdio.h>
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void print_queue(const queue_t *queue) {
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printf("Queue(size=%zu): ", queue_length(queue));
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for (size_t i = 0; i < queue_length(queue); ++i) {
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int val;
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queue_peek_at(queue, i, &val);
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printf("%d ", val);
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}
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printf("\n");
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}
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int main(void) {
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queue_t q;
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int ret;
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// 初始化队列，存储int类型
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if (!queue_init(&q, sizeof(int))) {
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printf("Init failed!\n");
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return -1;
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}
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// 入队
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for (int i = 1; i <= 10; ++i) {
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ret = queue_enqueue(&q, &i);
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printf("Enqueue %d: %s\n", i, ret ? "OK" : "FAIL");
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}
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print_queue(&q);
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// 查询第3个元素
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int val = 0;
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if (queue_peek_at(&q, 2, &val)) {
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printf("Peek index 2: %d\n", val);
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}
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// 从头部出队
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for (int i = 0; i < 2; ++i) {
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if (queue_dequeue_head(&q, &val)) {
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printf("Dequeue head: %d\n", val);
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}
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}
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print_queue(&q);
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// 从尾部出队
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if (queue_dequeue_tail(&q, &val)) {
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printf("Dequeue tail: %d\n", val);
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}
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print_queue(&q);
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// 抛弃前3个
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size_t dropped = queue_drop_head(&q, 3);
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printf("Drop head 3, actually dropped: %zu\n", dropped);
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print_queue(&q);
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// 抛弃尾部10个（超出队列长度，实际清空）
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dropped = queue_drop_tail(&q, 10);
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printf("Drop tail 10, actually dropped: %zu\n", dropped);
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print_queue(&q);
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// 销毁队列
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queue_destroy(&q);
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printf("Queue destroyed.\n");
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return 0;
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}
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