Point(int x1, int y1) : x(x1), y(y1){}

int x;

int y;

void operator()(int *p) {

free(p) ;

std::cout << "\nFree class: pointer freed\n" ;

}

using namespace std;

{

std::unique_ptr<Point> uPt(new Point(4,6));

auto [x,y] = *uPt; //<-- structured bindings

cout << "\nx: " << x << " y: " << y;

uPt.reset(new Point(400, 600));

auto [x1,y1] = *uPt;

cout << "\nx1: " << x1 << " y1: " << y1;

cout << "\nraw pointer: " << uPt.get();

auto p = std::make_unique<int>(5) ;

auto pt = std::make_unique<Point>(3,5) ;

auto pArr = std::make_unique<int[]>(5) ;

pArr[0] = 100;

}

{

auto p = std::make_shared<int>(5) ;

auto pt = std::make_shared<Point>(3,5) ;

auto pArr = std::make_shared<int[]>(5) ;

pArr[0] = 0 ;

}

{

std::unique_ptr<int, Free> p1 {(int*) malloc(4), Free{}} ;

std::unique_ptr<int, void (*)(int *)> p2 {(int*) malloc(4), FreeFunc} ;

}

//other types are: shared_ptr, weak_ptr

return 0;

}