arrays through pointer representation issue

[momotaro]

I have a class called vetor which the is the following:

class Vector
{
 
private:
    Vector* v;
    int length;
 
public:
    DynamicVector(double* v=0, int length=0);
    ~DynamicVector(void);
    void remplissage();
    void affiche();
 
};

#include "StdAfx.h"
#include "DynamicVector.h"
 
 
DynamicVector::DynamicVector(double* v, int n)
{
    v = new double[n];
 
    for(int i = 0; i < n; i++)
        *(v+i) = 0;
}
 
 
DynamicVector::~DynamicVector(void)
{
    delete []this;
}
 
 
 
void DynamicVector::affiche()
{
    for(int i = 0; i < this->length; i++)
        cout<< this->v+i <<endl; // does not print
}

am expecting the function affiche to display the array but instead I get nothing!

please advise
thx in advance

[hype261]

Does this code even compile. I would seriously doubt it.

 
class Vector 
{ 
 
private: 
    Vector* v; 
    int length; 
 
public: 
    DynamicVector(double* v=0, int length=0); 
    ~DynamicVector(void); 
    void remplissage(); 
    void affiche(); 
 
};
 

Your class is called Vector, but you have a constructor and destructor named DynamicVector.

Where are you assigning a value to the Vector v???? Your
constructor doesn't assign a value to the Vector it assigns a value to the double v.

 
DynamicVector::~DynamicVector(void) 
{ 
    delete []this; 
}
 
 

This is wrong also. I believe you want to use this code

 
DynamicVector::~DynamicVector(void) 
{ 
    delete[] v; 
}