//******************************************************** // The following code example is taken from the book // C++23 - The Complete Guide // by Nicolai M. Josuttis (www.josuttis.com) // http://www.cppstd23.com // // The code is licensed under a // Creative Commons Attribution 4.0 International License // http://creativecommons.org/licenses/by/4.0/ //******************************************************** import std; // make the whole C++ standard library available int main() { std::map dates; dates["now"] = std::chrono::system_clock::now(); for (const auto& [key, val] : dates | std::views::take(5)) { std::cout << key << ": " << val << '\n'; } }