Function Declaration Parameter Naming Best Practices (C++)

Question

In a function declaration, while the parameters do not have to be named, is it preferable to have them named? What are the advantages and disadvantages of this?

Answer 1

The advantage of naming them is that you can refer to them in the documentation. (This includes your editor/IDE picking them up and presenting them to you as hints when you type a call to such a function.)

A disadvantage would be that names might change according to the function's implementation, except for the fact that the names in a function declaration might differ from those in the function's definition. (IOW: I see no disadvantage.)

Answer 2

For documentation reasons mainly