- xbt_assert(!xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
- "Reading a router, processing unit \"%s\" already exists",
- router->id);
-
- simgrid::surf::NetCard *info = new simgrid::surf::NetCardImpl(router->id, SURF_NETWORK_ELEMENT_ROUTER, current_routing);
- info->setId(current_routing->addComponent(info));
- xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) info);
- XBT_DEBUG("Having set name '%s' id '%d'", router->id, info->id());
- simgrid::surf::netcardCreatedCallbacks(info);
+ xbt_assert(nullptr == xbt_lib_get_or_null(as_router_lib, router->id, ROUTING_ASR_LEVEL),
+ "Refusing to create a router named '%s': this name already describes a node.", router->id);
+
+ simgrid::surf::NetCard *netcard = new simgrid::surf::NetCardImpl(router->id, SURF_NETWORK_ELEMENT_ROUTER, current_routing);
+ netcard->setId(current_routing->addComponent(netcard));
+ xbt_lib_set(as_router_lib, router->id, ROUTING_ASR_LEVEL, (void *) netcard);
+ XBT_DEBUG("Having set name '%s' id '%d'", router->id, netcard->id());
+ simgrid::surf::netcardCreatedCallbacks(netcard);