C++多值返回初始化

#include <iostream>

#include <tuple>

std::tuple<bool, int,int> GetUserAge(const std::string& user_name)

{

std::tuple<bool, int,int> result;

if (user_name.compare("xiaoli") == 0)

{

result = std::make_tuple(true, 18,0);

}

else

{

result = std::make_tuple(false, -1,-1);

}

return result;

}

int main()

{

std::tuple<bool, int,int> result = GetUserAge("xiaolili");

bool work_status;

int age;

int user_id;

std::tie(work_status, age, user_id) = result;

std::cout << "查询结果：" << work_status << " " << "年龄：" << age <<" "<<"用户id:"<<user_id <<std::endl;

getchar();

return 0;

}