Function print

Exercises/NoModules/Chapter 16/Exer16_06/Exer16_06.cpp:93–101

}

void print(std::ostream& stream, const Customer& customer)
{
  stream << customer.toString() << std::endl;
  if (std::cout.fail())
  {
    std::cout.clear();
    throw std::runtime_error("Failed to output customer");
  }
}