What are C++20 Ranges and how do they work?

What are C++20 Ranges and how do they work?

C++20 Ranges provide a new way to work with sequences of elements, allowing for more expressive and concise code.

Can you give me an example of how to use Ranges in C++?

Sure! Here's a simple example: you can use std::views::filter to filter elements from a container. For instance, auto even_numbers = numbers | std::views::filter([](int n) { return n % 2 == 0; });.

What are the benefits of using Ranges over traditional iterators?

Ranges simplify code by reducing boilerplate, improving readability, and enabling lazy evaluation, which can enhance performance.

Are there any limitations or drawbacks to using Ranges?

One limitation is that Ranges may have a steeper learning curve for those unfamiliar with functional programming concepts.