text: /* compute proper and cumulated effects for intra01
     compute proper and cumulated effects with points to for intra02
     compute proper and cumulated pointer effects for intra03
  */
  
  void bar(int **pp, int **qq) {
    *pp = *qq;
    return;
  }
  
  
  
  void inter04(){
    int i = 0 , j = 1,  *p = &i, *q = &j, **pp = &p, **qq = &q ;
    
    bar(pp, qq);
    return;
  }
  
  
  