Is there an extension to obfuscate code when building a project?

Question

C++ / C#

Good day. Is there an extension to obfuscate C++ source code on build? There are a lot of files in the project, but I only need to obfuscate main.hand main.cpp.

Answer 1

What is the point in such obfuscation? Especially for a compiled language?
I want to hide something - compile the necessary piece as a library and give it with documentation.
Well, or a more cardinal method - write ugly and useless garbage - the most cardinal method)