I have a question about header guard and inline.
I know that if you want to definition of function in header file you must use inline pre-descriptor.Because when you use inline function, this function will be copy by preprocessor for compiler whenever it there.
So, we can say inline remove multiple definition with this way.
Also, header guards can remove multiple definition.
So my main question, if I use header guards on header file, Do I need use inline for remove multiple definition? What is real difference between?