a

void ProdArray::add(Product* prod)
{
  ProdArray* temp;
  if (size >= MAX_ARR)
    return;
  for (int i = 0; i < size ; i++){
    temp[i] = elements[i];
    if (prod->expDate > elements[i]->expDate ){
      temp[i++]=prod;
      size++;
      break;
    }
  }
  for (i; i < size; i++) {
    temp[i] = elements[i-1];
  }
  *this = temp;
}