//

// 2.5.structured.binding.cpp

// chapter 2 language usability

// modern cpp tutorial

//

// created by changkun at changkun.de

// https://github.com/changkun/modern-cpp-tutorial

//

#include <iostream>

#include <tuple>

#include <string>

#include <map>

std::tuple<int, double, std::string> f() {

return std::make_tuple(1, 2.3, "456");

}

int main() {

// Unpack a tuple straight into named variables.

auto [x, y, z] = f();

std::cout << x << ", " << y << ", " << z << std::endl;

// Bind each key/value pair while iterating an associative container,

// instead of writing it->first / it->second.

std::map<std::string, int> scores{{"alice", 90}, {"bob", 80}};

for (const auto& [name, score] : scores) {

std::cout << name << ": " << score << '\n';

}

return 0;

}