#include <cstdlib>
#include <iostream>
#include <memory>
#include <ostream>

using std::cout;
using std::endl;
using std::ostream;
using std::unique_ptr;

void Leaky() {
  int *x = new int(5);  // heap-allocated
  cout << *x << endl;
}  // never called delete, therefore leaked

typedef struct { int x = 1, y = 2; } Point;
ostream& operator<<(ostream &out, const Point &rhs) {
  return out << "(" << rhs.x << "," << rhs.y << ")";
}
void NotLeaky() {
  unique_ptr<Point> p(new Point);  // wrapped, heap-allocated
  p->x = 5;
  cout << *p << endl;
}  // never called delete, but no leak

int main(int argc, char **argv) {
  Leaky();
  NotLeaky();
  return EXIT_SUCCESS;
}