How much functionality is “acceptable” for a C++ struct?

Question

My first post so please go easy on me!

I know that there\'s no real difference between structs and classes in C++, but a lot of people including me use a struct or class

Answer 1

This is purely a matter of style, and what is right or wrong will be dictated by your shop. Sometimes the decision will be to make no decision but, to paraphrase Rush, they still will have made a choice.

As a rule of thumb I will generally use structs for simpler datatypes rangin from PODs to objects that have member simple functions. But there is no bright line, and once I define a struct I will not normally go back and change it to a class just because I added more functionality. I see no value in that.