I am very fond of the idea of “stateless” code, which may seem strange coming from a person that likes OOP. When I say “stateless”, I am really referring to the fact that no class method should ever have any side-effect. Either it is an explicit set method, or it shouldn’t affect the output from other methods of the object. Objects should be used as convenient ways of storing/manipulating data in predictable/readable ways.

I’ve seen way too much code where a class has methods which will only work"as expected" if certain other methods have been called first.

Sounds reasonable to me: With what I’ve written I don’t think I’ve ever been in a situation like the one you describe, with an algorithm split over several classes. I feel like a major point of OOP is that I can package the data and the methods that operate on it, in a single encapsulated package.

Whenever I’ve written in C, I’ve just ended up passing a bunch of structs and function pointers around, basically ending up doing “C with classes” all over again…

I would argue that there are very definitely cases where operator overloading can make code more clear: Specifically when you are working with some custom data type for which different mathematical operations are well defined.

This makes sense to me, thanks! I primarily use Python, C++ and some Fortran, so my typical programs / libraries aren’t really “pure” OOP in that sense.

What I write is mostly various mathematical models, so as a rule of thumb, I’ll write a class to represent some model, which holds the model parameters and methods to operate on them. If I write generic functions (root solver, integration algorithm, etc.) those won’t be classes, because why would they be?

It sounds to me like the issue here arises more from an “everything is a nail” type of problem than anything else.

Oh, thanks then! I’ve heard people shred on OOP regularly, saying that it’s full of foot-canons, and while I’ve never understood where they’re coming from, I definitely agree that there are tasks that are best solved with a functional approach.

Can someone please enlighten me on what makes inheritance, polymorphism, an operator overloading so bad? I use the all regularly, and have yet to experience the foot cannons I have heard so much about.