Best practices

The transition to range-based STL is undoubtedly exhilarating. With this newfound expressiveness and clarity, we have powerful tools at our fingertips. However, understanding a set of best practices is essential to maximize the potential of ranges and ensure the maintainability of your code base. Let us look at some of the best practices that we can implement.

Embracing the power of chaining

One of the standout features of ranges is their natural ability to chain operations. Chaining not only enhances readability but also improves efficiency by avoiding intermediary storage:

std::vector<int> nums = {5, 8, 10, 14, 18};
auto result = nums | std::views::filter([](int n) { return n % 2 == 0; })
                   | std::views::transform([](int n) { return n * 2; });

This elegant one-liner filters out odd numbers and then doubles the even ones. By promoting such...