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// 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;

}