Adding Doxygen to your project

One of the most established and popular tools for generating documentation from C++ sources is Doxygen. And when I say “established,” I mean it: the first version was released by Dimitri van Heesch in October 1997. Since then, it has grown immensely and is actively supported by almost 250 contributors to its repository (https://github.com/doxygen/doxygen).

You might be concerned about the challenge of incorporating Doxygen into larger projects that haven’t used documentation generation from the start. Indeed, the task of annotating every function can appear overwhelming. However, I encourage you to start small. Focus on documenting elements you’ve recently worked on in your latest commits. Remember, even partially complete documentation is a step forward compared to none at all, and it gradually helps in building a more comprehensive understanding of your project.

Doxygen can produce documentation in the following...