std::make_shared<>
// make_shared example
#include <iostream>
#include <memory>
int main () {
std::shared_ptr<int> foo = std::make_shared<int> (10);
// same as:
std::shared_ptr<int> foo2 (new int(10));
auto bar = std::make_shared<int> (20);
auto baz = std::make_shared<std::pair<int,int>> (30,40);
std::cout << "*foo: " << *foo << '\n';
std::cout << "*bar: " << *bar << '\n';
std::cout << "*baz: " << baz->first << ' ' << baz->second << '\n';
return 0;
}