Speed accessing a std::vector by iterator vs by operator[]/index?

Question

Say, I have a

std::vector v;

in my code and I need to access its elements very often in the program, looping them forwa

Answer 1

If speed matters, then you should have time and will to run a profiler on it and see which works best in your case.

If it doesn't matter, then you are performing premature optimization and should STOP doing it.