Parameter vs. Member variables

Question

I\'ve recently been working with someone else\'s code and I realized that this individual has a very different philosophy regarding private variables and method parameters t

Answer 1

I think the answer is straightforward if you are familiar with C++ destructors. All member variables should be assigned a way to be destructed while function parameters are not. So that's why member variables are usually the states or dependicies of an object having some kind of relation regarding their lifecycle.