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
#include "vector.hpp"
#include <iostream>
#include <array>
int main()
{
constexpr std::array orig{0, 8, 15, 132, 4, 77};
constexpr auto avg = modifiedAvg(orig);
std::cout << "average: " << avg << '\n';
}