max_nodes, net_nodes

Hi Al.

in COMPONENT::set_port_by_name, there is a call to port_name(i) in

for (int i=0; i<max_nodes(); ++i) {
[..]
}

and then

std::string DEV_SUBCKT::port_name(int i)const {
  if (_parent) {
    return _parent->port_value(i);
  }else{itested();
    return "";
  }
}

here, _parent is a MODEL_SUBCKT where port_value comes from COMPONENT, but...

const std::string COMPONENT::port_value(int i)const
{
  assert(_n);
  assert(i >= 0);
  assert(i < net_nodes()); // <- boom
  return _n[i].short_label();
}

now, this looks reasonable...

- change max_nodes() in DEV_SUBCKT to
  {if(_parent){ return _parent->net_nodes();}else{return PORTS_PER_SUBCKT;}}
- change the asertion in COMPONENT::port_value(int) to
  assert(i < max_nodes());

do you agree? anything else maybe?

thanks
felix