How to Use std::ranges to Filter, Transform, and Collect Containers in C++23?

With the introduction of C++23, the Standard Library has added a number of enhancements to the ranges library that make it easier to write concise, expressive code for manipulating sequences. The key new components you’ll want to know about are:

• std::ranges::views – lazy views that can be composed to build pipelines
• std::ranges::to – a terminal operation that materializes a view into a container
• std::ranges::actions – in‑place modifications for views that can be turned into actions

Below is a step‑by‑step guide to using these tools to perform a common task: filter a list of integers, double each value, and store the result in a new `std::vector

`. “`cpp #include #include #include #include int main() { std::vector data{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; // 1. Create a pipeline of views: filter, transform, and then collect. auto result = data | std::ranges::views::filter([](int x){ return x % 2 == 0; }) // keep evens | std::ranges::views::transform([](int x){ return x * 2; }) // double them | std::ranges::to(); // materialize // 2. Print the result for (int v : result) { std::cout #include #include int main() { std::vector data{1,2,3,4,5}; data | std::ranges::actions::remove_if([](int x){ return x % 2 == 0; }) // remove evens | std::ranges::actions::transform([](int& x){ x *= 3; }); // triple odds for (int v : data) std::cout