std::get(info)使用，tuple使用，array使用

#include <iostream>
#include <tuple>
#include <array>
 
int main()
{
    typedef std::tuple<int, int, int, std::string, std::string> DATA_INFO;
    //initialization value
    const DATA_INFO info(28, 28, 10, "data", "prob");
    
    // get values:
    std::cout << "(" << std::get<0>(info) << ", " << std::get<1>(info)
              << ", " << std::get<2>(info) << ", " << std::get<3>(info) 
              << ", " << std::get<4>(info) << ")\n";
    
    
    std::array<int, 3> arr;
    
    // set values:
    std::get<0>(arr) = 1;
    std::get<1>(arr) = 2;
    std::get<2>(arr) = 3;
 
    // get values:
    std::cout << "(" << std::get<0>(arr) << ", " << std::get<1>(arr)
              << ", " << std::get<2>(arr) << ")\n";
}

運行結果：

(28, 28, 10, data, prob)
(1, 2, 3)