Programming C without variables is like, well, programming C without variables. They are so essential to the language that it doesn’t even require an analogy here. We can declare and use them as ...

When you're declaring variables in a script outside of a function, this distinction is pretty much irrelevant.

Does it ever make sense to declare a variable in C or C++ as both volatile (in other words, “ever-changing”) and const (“read-only”)? If so, why? And how should you combine volatile and const properly ...