Re: [Boost-users] some problems about shared_ptr

Subject: Re: [Boost-users] some problems about shared_ptr
From: Samurai Deeper (typhoonking77_at_[hidden])
Date: 2010-09-10 22:07:24

sorry, I forgot to change the names of those classes.
I am deeply sorry for my unconscious

/***********CValue**********/
template< typename tvalue >
class CValue
{
    public:
        CValue( tvalue value ) : value_(value) {};

    private:
        tvalue value_;
};
/***********end of CValue*********/

/***********Type**************/
template<typename T, template <typename> class Value>
struct Type
{
  typedef boost::shared_ptr< Value<T> > pValue;  
};
/********end of Type************/

/**********Composition**********/
template<typename T>
class Composition //digital image processing
{
  public:
    Composition();    
    virtual ~Composition();
    shared_ptr< T > createCValue();
};

template<typename T>
Composition<T>::Composition()
{}

template<typename T>
Composition<T>::~Composition()
{}

template<typename T>
shared_ptr< T > Composition<T>::createCValue()
{
  typename Type<T, CValue>::pValue c(new Composition< T >);
  return c;
}
/*********end of composition***********/

/**********main************/
int main()
{        
  Type<matrix<double>, Composition>::pValue C(new Composition<matrix<double>
>);
  Type<matrix<double>, CValue>::pValue D;
  D = C->createCValue();  
  
  cout<<"system pause"<<endl;
  cin.get();
}
/*********end of main********/

I hope I could create the instance of CValue through class Composition
so I wrote a "createCvalue" function in the class Composition
-- 
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