int vector_test(int, char**)
{
  typedef dbstl::db_vector <double, ElementHolder<double> > dbl_vec_t;
  DbEnv *penv = new DbEnv(DB_CXX_NO_EXCEPTIONS);		// (2)
  penv->open("dbenv", 
    flags | DB_CREATE | DB_INIT_MPOOL | DB_PRIVATE, 0777); 	// (3)
  pdb = dbstl::open_db(penv, "vector2.db", 
    DB_RECNO, DB_CREATE | dboflags, 0);				// (4)
  dbstl::register_db_env(penv);					// (5)
  dbstl::register_db(pdb);					// (6)
  dbl_vec_t v1(penv, pdb);					// (7)
  v1.push_back(32.1);
  v1.push_back(40.5);
  // The rest follows ...