Function db_disconnect

Exercises/Modules/Chapter 16/Exer16_06/DB.cpp:47–52

}

void db_disconnect(DB_CONNECTION* connection)
{
  // reinterpret_cast<> is used to cast between pointers/references of 
  // unrelated types (such as void* and Database*)
  reinterpret_cast<Database*>(connection)->disconnect();
}

DB_QUERY_RESULT* db_query(DB_CONNECTION* connection, const char* query)
{