Method factor

src/laybasic/laybasic/layLayerProperties.cc:1022–1047

}

std::pair<size_t, size_t>
LayerPropertiesConstIterator::factor () const
{
  tl_assert (m_list);
  
  //  with this definition, the 0 iterator can act as the "root"
  if (m_uint == 0) {
    return std::make_pair (size_t (1), size_t (1));
  }

  LayerPropertiesList::const_iterator iter = m_list->begin_const ();
  size_t uint = m_uint;
  size_t n = ((m_list->end_const () - m_list->begin_const ()) + 2);
  size_t f = 1;

  while (uint > n) {
    size_t rem = uint % n;
    uint /= n;
    f *= n;
    tl_assert (rem < n - 1 && rem > 0);
    n = ((iter[rem - 1].end_children () - iter[rem - 1].begin_children ()) + 2);
    iter = iter[rem - 1].begin_children ();
  }

  return std::make_pair (f, n);
}

bool 
LayerPropertiesConstIterator::at_end () const