int main()
{
Scales_data item;
std::string null_book = "9-999-99999-9";
item.combine(null_book);
print(std::cout, item) << std::endl;
constexpr Debug io_sub(false, true, false);
if (io_sub.any())
std::cerr << "print appropriate error messages" << std::endl;
constexpr Debug prob(false);
if (prob.any())
std::cerr << "print an error messages" << std::endl;
// Scales_data total(std::cin);
std::string null_book("abc");
// Scales_data item = null_book; // explicit Scales_data(std::string) cause error
Scales_data item;
item.combine(Scales_data(null_book));
item.combine(static_cast<Scales_data>(std::cin));
Screen myScreen(5, 3, '$');
const Screen blank(5, 3, '0');
myScreen.move(1, 3).set('#').display(std::cout);
blank.display(std::cout);
std::cout << std::endl;
Window_mgr my_windows({myScreen, blank});
my_windows.display();
my_windows.clear(0);
my_windows.display();
Screen::pos ht(24), wd(80);
Screen scr(ht, wd, ' ');
Screen *p = &scr;
char c = scr.get();
c = p->get();
std::cout << c << std::endl;
}
static int test_sales_data()
{
// Sales_data data(cin);
// print(cout, data);
X2 x2(5);
x2.print();
X2 x2_default;
x2_default.print();
constexpr Debug d;
constexpr int c_i = d.any();
return 0;
}