The following code example is taken from the book
C++20 - The Complete Guide
by Nicolai M. Josuttis,
Leanpub, 2021
The code is licensed under a
Creative Commons Attribution 4.0 International License.
// raw code
module; // start module unit with global module fragment
#include <iostream>
#include <format>
module Mod1; // implementation unit of module Mod1
void Customer::print() const
{
// print name:
std::cout << name << ":\n";
// print order entries:
for (const auto& od : orders) {
std::cout << std::format("{:3} {:14} {:6.2f} {:6.2f}\n",
od.count, od.name, od.price, od.count * od.price);
}
// print sum:
std::cout << std::format("{:25} ------\n", ' ');
std::cout << std::format("{:25} {:6.2f}\n", " Sum:", sumPrice());
}