Abstract Adaptor patter in C++

CMakeLists.txt

cmake_minimum_required (VERSION 2.6)
project(demo)

find_package(Boost 1.4.2)

include_directories(${Boost_INCLUDE_DIR})

set(CORELIBS ${Boost_LIBRARIES})


add_executable(demo ${CORELIBS} test.cpp )
target_link_libraries(demo ${CORELIBS})

test.cpp

#include <iostream>
#include <cstdlib>
#include <cmath>
#include <vector>
#include <fstream>

#include <boost/ptr_container/ptr_vector.hpp>

/**
 * A simple adapter pattern based på http://johnlindquist.com/2011/05/17/patterncraft-adapter-pattern/
 * Uses http://www.boost.org/doc/libs/1_42_0/libs/ptr_container/doc/ptr_container.html
 */

/**
 * Interface
 */
class IUnit{
  public:
    virtual void attack() = 0;
};

class Zergling : public IUnit{
  public:
    void attack(){
    std::cout << "Zergling, clawing attack" << std::endl;
  }
};

class Zealot : public IUnit{
  public:
    void attack(){
      std::cout << "Zealot, slash attack." << std::endl;
    }
};

class Marine : public IUnit{
public:
  void attack(){
    std::cout << "Marine, armed attack" << std::endl;;
  }
};

class Mario{
public:
  void jumpAttack(){
    std::cout << "Mario, jump attack." << std::endl;
  }
};

class MarioAdapter : public IUnit{
public:
  void attack(){
    m_Mario.jumpAttack();
  }
private:
  Mario m_Mario;
};

int main(int argc, char* argv[])
{
  boost::ptr_vector<IUnit> UnitList;
 
  UnitList.push_back(new Zergling());
  UnitList.push_back(new Zealot());
  UnitList.push_back(new Marine());
  UnitList.push_back(new MarioAdapter());

  boost::ptr_vector<IUnit>::iterator it;
  for(it = UnitList.begin(); it != UnitList.end(); ++it){
    it->attack();
  }
    
  return 0;
}