#include "boost/shared_array.hpp"
#include <iostream>

struct B {};

struct D : public B {};

int main()
{
#if 1
  boost::shared_array<int> pInt(new int[50]);
  boost::shared_array<const int> pIntConst1(pInt);
  boost::shared_array<int> pInt2;
  pInt2 = pInt;
  boost::shared_array<const int> pIntConst2(pIntConst1);
  boost::shared_array<const int> pIntConst3;
  pIntConst3 = pIntConst1;

  std::cout << "Use count: " << pInt.use_count() << std::endl;

  boost::shared_array<D> pD(new D[50]);
  boost::shared_array<const D> pD2(pD);
  std::cout << "Use count: " << pD2.use_count() << std::endl;
#else
  boost::shared_array<D> pD(new D[50]);
  boost::shared_array<B> pB(pD);

#endif
  return 0;
}