#include <vector>
#include <iostream>
#include <boost/container/small_vector.hpp>

//typedef std::vector<int> vec;
typedef boost::container::small_vector<int,10> vec;

int main()
{
  vec v = {1,2};
  vec w;
  std::cout<<"v.size() = "<<v.size()<<"   w.size() = "<<w.size()<<"\n";
  std::cout<<" swapping v and w ...\n";
  v.swap(w);
  std::cout<<"v.size() = "<<v.size()<<"   w.size() = "<<w.size()<<"\n";
}