The GedgePtrBag Class Implementation:

Next, we implement the GedgePtrBag class itself.

GedgePtrBag::GedgePtrBag(const GedgePtrBag& T)
{
  d_root_p = T.d_root_p;
}

GedgePtrBag::GedgePtrBag()
{
  d_root_p = NULL;
}

GedgePtrBag& GedgePtrBag::operator=(const GedgePtrBag& T)
{
  if(&T!=this){
    d_root_p = T.d_root_p;
    return(*this);
    }
  else{
    return(*this);
    }
}

GedgePtrBag::~GedgePtrBag()
{  
   GedgePtrBagManip man(this);
   while(man){
     man.remove();
     }
}

void GedgePtrBag::add(Gedge *pointer)
{
  d_root_p = new GedgePtrBagLink(pointer,d_root_p);
}

void GedgePtrBag::removeAll(const Gedge *pointer)
{
  GedgePtrBagManip man(this);
  while(man){
    man()==pointer ? man.remove() : man.advance();
    }
}