struct Vertex	{                      
   double x;
   double y;
   double z;
   };

struct Face {
   vectorv;
   unsigned int tex_id;
};

struct Shape	{
   vectorf;
   vectortv; //currently irrelevant
   };

Shape shape;

void Func1()
{
   vectortemp;

   temp.push_back(-1.0);
   temp.push_back(-1.0);
   temp.push_back(1.0);

   temp.push_back(1.0);
   temp.push_back(-1.0);
   temp.push_back(1.0);

   temp.push_back(1.0);
   temp.push_back(1.0);
   temp.push_back(1.0);

   temp.push_back(-1.0);
   temp.push_back(1.0);
   temp.push_back(1.0);

   temp.push_back(0);

   AddFace(temp);
}

int AddFace(vectorv)
{
//here''s the problem: i need to give values to the members of 
//the vector<Vertex> items in 
//vector<Face>: how do i do that?

//i need to take the values from v three at a time and
//progressively assign them to shape.f[x].v[y].x, shape.f[x].v
//[y].y and shape.f[x].v[y].z (and finally assign the last value
//to shape.f[x].tex_id)
//vector seems only to provide push_back to 
//add values at the end, but i don''s see how i could use it here.
}