The following code example is taken from the book
C++17 - The Complete Guide
by Nicolai M. Josuttis,
Leanpub, 2017
The code is licensed under a
Creative Commons Attribution 4.0 International License.
#include <iostream>
template<auto Sep = ' ', typename First, typename... Args>
void print(const First& first, const Args&... args) {
std::cout << first;
auto outWithSep = [](const auto& arg) {
std::cout << Sep << arg;
};
(... , outWithSep(args));
std::cout << '\n';
}