C++11的tuple用法笔记

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最新推荐文章于 2025-05-16 14:19:35 发布

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分类专栏： C/C++高级用法

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本文介绍了一个C++示例程序，展示了如何使用元组(tuple)和向量(vector)来存储复合数据类型，并演示了如何遍历向量中包含的元组元素。

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#include <iostream>
#include <tuple>
#include<vector>

using std::cout ;
using std::endl ;
using std::tuple;
using std::vector;
using std::string;
using std::get;
using std::make_tuple ;


auto handleCmd()
{
	auto t1 = make_tuple(1, "a1", "b1", "c1");
	cout << get<0>(t1) << " ";
	cout << get<1>(t1) << " ";
	cout << get<2>(t1) << " ";
	cout << get<3>(t1) << " ";
	cout << endl;

	vector<tuple<int, string, string, string> > tv;

	tv.push_back(make_tuple(1, "a1", "b1", "c1"));
	tv.push_back(make_tuple(2, "a2", "b2", "c2"));

	vector< tuple<int, string, string ,string> >::iterator itr;
	for (itr=tv.begin(); itr!=tv.end(); itr++)
	{
		cout << get<0>(*itr) << " ";
		cout << get<1>(*itr) << " ";
		cout << get<2>(*itr) << " ";
		cout << get<3>(*itr) << endl;
	}

	return t1;
}