c++ and multi pointers

Question

I have a simple problem with pointers. Here is my code:

#include <iostream>
#include <vector>

using namespace std;

int main()
{
    typedef float RtPoint[3]; 
    RtPoint** b = new RtPoint*[4];
    b[0] = (RtPoint*)new RtPoint;
    RtPoint* p = b[0];
    RtPoint c;
    (*p)[0] = &(c[0]);
    (*p)[1] = &(c[1]);
    (*p)[2] = &(c[2]);
    std::cout << p[1] << " " << &(c[0]) << std::endl;
    delete[] b;

    return 0;
}

So I just want put in p[0], p[1] and p[2] the address of c[0], c[1] and c[2]. My code is wrong but I didn't find a solution.

---

Sorry my fault this code works :)

  typedef float RtPoint[3]; 
  RtPoint** b = new RtPoint*[4];
  b[0] = (RtPoint*)new RtPoint;
  RtPoint c;
  b[0] = &c;

Edit: yes I've seen my error

Answer 1

If you are doing c++, forget about raw pointers, and use the std::vector.

But if you really insists :

#include <iostream>
#include <vector>
using namespace std;

int main()
{
    typedef float RtPoint[3];
    RtPoint** b = new RtPoint*[4];
    b[0] = (RtPoint*)new RtPoint;
    RtPoint* p = b[0];
    RtPoint c;
    (*p)[0] = c[0];
    (*p)[1] = c[1];
    (*p)[2] = c[2];
    std::cout << p[1] << " " << &(c[0]) << std::endl;
    delete[] b;
}

By the way, you didn't initialize any variable.

Answer 2

So I try to explain my problem. So I have a function like that:

PointsPolygons(RtInt npolys, RtInt nverts[], RtInt verts[], RtInt n, char* tokens[], void* parms[])

And I'm trying to save all the arguments of this function in a class. So in n I have the number of tring in tokens[], and in parms I have alla the datas. Some datas are a array of points the point are declared like this:

typedef float RtPoint[3]

this is a snipset of my code:

struct RtVec
{
   float data[3];
};

vector<RtVec> m_pointV;

typdef void* RtPointer;
//Adress of the point arrays 
RtPointer ptr = parms[i];

for(int j=0;j<arraylen;++j)
{
    RtFloat* tmp = ((RtPoint*)(ptr))[j];
    RtVec m_Point;
    m_Point.val[0] = tmp[0]; m_Point.val[1] = tmp[1]; m_Point.val[2] = tmp[2];
    m_pointV.push_back(m_Point);  
 }
 //now I should save the adress of each members of in a m_pointV in a void* structure
 //to have samething like that (RtPointer)(new RtPoint*[arrlen]) and I have some problem to do that
 void m_params[i] = ;

thank you Alan