Why is const-correctness specific to C++?

Question

Disclaimer: I am aware that there are two questions about the usefulness of const-correctness, however, none discussed how const-correctness is necessary in C++ as oppos

Answer 1

You're right, const-correctness isn't necessary. You can certainly write all your code without the const keyword and get things to work, just as you do in Java and Python.

But if you do that, you'll no longer get the compiler's help in checking for const violations. Errors that the compiler would have told you about at compile-time will now be found only at run-time, if at all, and therefore will take you longer to diagnose and fix.

Therefore, trying to subvert or avoid the const-correctness feature is just making things harder for yourself in the long run.