Advance iterator for the std::vector std::advance VS operator +?

Question

I found myself writing the following a lot:

int location =2;
vector vec;
vector::iterator it=vec.begin();

/..../
std::advance(it, location         


        

Answer 1

Use std::advance. It is just as efficient (it uses iterator traits to just do iterator addition for random access iterators), and is more general in that it works on other kinds of iterators as well.