C++: Proper way to iterate over STL containers

Question

In my game engine project, I make extensive use of the STL, mostly of the std::string and std::vector classes.

In many cases, I have to ite

Answer 1

STL containers support Iterators

vector v;
for (vector::iterator it = v.begin(); it!=v.end(); ++it) {
    cout << *it << endl;
}

size() would be re-computed every iteration.