//
// 2.6.auto.cpp
// chapter 2 language usability
// modern cpp tutorial
//
// created by changkun at changkun.de
// https://github.com/changkun/modern-cpp-tutorial
//

#include <initializer_list>
#include <vector>
#include <iostream>

class MagicFoo {
public:
 std::vector<int> vec;
 MagicFoo(std::initializer_list<int> list) {
 for (auto it = list.begin(); it != list.end(); ++it) {
 vec.push_back(*it);
 }
 }
};

int add(auto x, auto y) { // Supported in C++20
 return x+y;
}

int main() {
 MagicFoo magicFoo = {1, 2, 3, 4, 5};
 std::cout << "magicFoo: ";
 for (auto it = magicFoo.vec.begin(); it != magicFoo.vec.end(); ++it) {
 std::cout << *it << ", ";
 }
 std::cout << std::endl;

 auto i = 5; // type int
 auto j = 6; // type int
 std::cout << add(i, j) << std::endl;

 auto arr = new auto(10); // type int*
 // auto auto_arr2[10] = {arr}; // invalid
 return 0;
}