> I’m pretty sure Clean Code by Uncle Bob has a section on why you should use const to achieve immutable variables. Doesn't go far enough. Firstly, it's just

> I’m pretty sure Clean Code by Uncle Bob has a section on why you should use const to achieve immutable variables. Doesn't go far enough. Firstly, it's just advice. I might like it, but it doesn't mean I can get my teammates to do it. Secondly, if I want to do it, I have to get it right, any mistakes I make are on me. Thirdly, const is not enough. You'll probably end up with immutable pointers to mutable data, rather than any kind of referential transparency. A language which helps you get immutability right is a world of difference. It's like the difference between a memory-safe language vs just using C (and a C textbook which recommends that you write memory-safe code)