Why class size depend only on data members and not on member functions?

Question

I want to know the detail description on the size of a class. I want to know if there is only data members & member function without any virtual keyword then why the cla

Answer 1

Just like a regular C function, a C++ method is just an address in memory for the execution to jump to when called. The only difference is the first parameter, which is a pointer to the object from which you are calling the function.