Can the use of pointers cause memory clogging?

Question

Suppose I have this structures in c++:

class A{
  public:
    B b;
}

class B{
  public:
    C c;
}

class C{
  public:
    double x;
    double y;
    double z;
    double s;
    function Usize(){
      s  = sqrt(pow(x,2) + pow(y,2) + pow(z,2));
    }
}

Will accessing the the values in c ten times require more memory traffic than creating a direct pointer to c and use it? In code terms (assuming legal values):

double dx = 2*rand()-1;
double dy = 2*rand()-1;
double dz = 2*rand()-1;

a->b->c.x *= dx;
a->b->c.y *= dy;
a->b->c.z *= dz;

if (a->b->c.x > 10) a->b->c.x -= 10;
else if (a->b->c.x <0) a->b->c.x += 10;
if (a->b->c.y > 10) a->b->c.y -= 10;
else if (a->b->c.y < 0) a->b->c.y += 10;
if (a->b->c.z > 10) a->b->c.z -= 10;
else if (a->b->c.z < 0) a->b->c.z += 10;

a->b->c->Usize();

vs.

double dx = 2*rand()-1;
double dy = 2*rand()-1;
double dz = 2*rand()-1;


C* ac = a->b->c
ac.x *= dx;
ac.y *= dy;
ac.z *= dz;

if (ac.x > 10) ac.x -= 10;
else if (ac.x < 0)  ac.x += 10;
if (ac.y > 10) ac.y -= 10;
else if (Ac.y < 0) ac.y += 10;
if (ac.z > 10) ac.z -= 10;
else if (ac.z < 0) ac.z += 10;

Thanks.