c++ - Void Pointer Arithmetic

Question

Given a void pointer, if I want to make the void pointer point to x bytes ahead, how will this be best done? Is there a better way than casting to a char pointer?

Answer 1

Is there a better way than casting to a char pointer?

No (except having a char * instead of a void * to begin with, so you don't have to cast it at all).

If this is not desirable or possible, then the only way is:

ptr = static_cast<char *>(ptr) + offset;

(Note: if you are doing this sort of stuff in C++, usually there is a much better solution. Unless you are an expert and you already ruled out every other alternative, I suggest you post a new question asking if there is a better way to do what you're trying to do!)