C++ Views and Range Adaptors Without Confusion: From C++20 to C++23

C++ views make lazy range transformations composable, while range adaptors provide the convenient interface behind expressions such as `range | std::views::filter(...)`.
This article explains the difference between views, range adaptor objects, and range adaptor closures, shows how they work under the hood, and demonstrates how to implement a custom adaptor in C++23.








