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47 lines
1.3 KiB
47 lines
1.3 KiB
// File: queue.zig
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// Created Time: 2023-01-15
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// Author: sjinzh (sjinzh@gmail.com)
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const std = @import("std");
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const inc = @import("include");
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// Driver Code
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pub fn main() !void {
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// 初始化队列
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const L = std.TailQueue(i32);
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var queue = L{};
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// 元素入队
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var node1 = L.Node{ .data = 1 };
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var node2 = L.Node{ .data = 3 };
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var node3 = L.Node{ .data = 2 };
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var node4 = L.Node{ .data = 5 };
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var node5 = L.Node{ .data = 4 };
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queue.append(&node1);
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queue.append(&node2);
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queue.append(&node3);
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queue.append(&node4);
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queue.append(&node5);
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std.debug.print("队列 queue = ", .{});
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inc.PrintUtil.printQueue(i32, queue);
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// 访问队首元素
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var peek = queue.first.?.data;
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std.debug.print("\n队首元素 peek = {}", .{peek});
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// 元素出队
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var poll = queue.popFirst().?.data;
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std.debug.print("\n出队元素 poll = {}，出队后 queue = ", .{poll});
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inc.PrintUtil.printQueue(i32, queue);
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// 获取队列的长度
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var size = queue.len;
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std.debug.print("\n队列长度 size = {}", .{size});
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// 判断队列是否为空
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var is_empty = if (queue.len == 0) true else false;
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std.debug.print("\n队列是否为空 = {}", .{is_empty});
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_ = try std.io.getStdIn().reader().readByte();
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}
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