modifying for loop from map of integers to vector

So I have a function written as follows

Code:

inline
tSomething::tSomething(map<int, tSomethingElse* > const & Points, 
                     tWhatever const * a_ptr,
                     int ID,
             vector<vector<int> > const & one,
             vector<bool> const & two,
             vector<int> const & three):
 _ID(ID),_a_ptr(a_ptr),_points(Points),_one(one),_two(two),_three(three)
{
  for (map<int,tSomethingElse*>::const_iterator it = _points.begin(); it != _points.end(); it++)
  _stamp.push_back(it->first);
  sort(_stamp.begin(),_stamp.end());
  Target();
}

and now I have to take

Code:

inline
tSomething::tSomething(std::vector<tSomething::tSomethingElse*, std::allocator<tSomething::tSomethingElse*> >& Points,
                     tWhatever const * a_ptr,
 _a_ptr(a_ptr),_points(Points)

and write a for loop that does the same thing, so...

Code:

{
  for (???)
  _stamp.push_back(it->first);
  sort(_stamp.begin(),_stamp.end());
  Target();
}

but I am having trouble adapting the code. Is it straightforward or not really possible with the change of format?

Thanks in advance

You can't. You are missing data. In the first example, you got pairs of points and ints, storing the ints. Now your get a list of points. There's not way you can store the ints aside from making them up on the fly. You didn't get them.