for vector c++ code example

Example 1: for vector c++

for (auto it = begin (vector); it != end (vector); ++it) {
    it->doSomething ();
}

Example 2: for vector c++

std::vector<int>::iterator it = vector.begin();

Example 3: for vector c++

vector<int> vi;
...
for(int i : vi) 
  cout << "i = " << i << endl;