What is the point in using private and protected variables in C++?

[NilsonLima]

@L11777

Thanks, I read the definitions, that still doesn’t give me a good explanation for why I would ever want to use private and protected variables under any circumstances.

Private mentioned the “finding” as its reason of existence, but today, you have the glorious feature called Ctrl + F, also known as search, so that makes the point redundant. Widely used for browsers and code editing programs.

Protected mentions an odd use, and it’s to “maintain compatibility”. Seems legit, but when you require to know the information or change it externally for whatever reason, this would create a barrier. The thing to do then would be to make the variable public but you probably can’t or shouldn’t.

I need to have a good reason to use them, and the answer seems to be exactly what I saw as the problem; to create hassle. Seems like a terrible thing to do.

The only thing I can say is that you need to read something from the source, like a book from the C++ creator and some object oriented programming concepts. These will be all clarified. Remember, C++ is also a industry standard and many science areas use it to create software, just happens it fits 3D tools aswel. Every resourceful engine out there is written in C++ at its core, even Unity is.