//******************************************************** // 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/ //******************************************************** #include #include #include #include int main() { std::vector coll{"tic", "tac", "toe", "42", "end"}; std::println("{}", coll); // split into sub-views of 2 elements (last may have less): const auto cv = coll | std::views::chunk(2); // const not propagated for (const auto& sub : cv) { // const not propagated // modify first element of each subview: std::println("- process {}", sub); sub.front() += '*'; // OOPS: \IBcompiles and modifies elements of coll } std::println("{}\n", coll); }