-XBT_PUBLIC void sg_platf_begin(); // Start a new platform
-XBT_PUBLIC void sg_platf_end(); // Finish the creation of the platform
-
-XBT_PUBLIC simgrid::s4u::NetZone* sg_platf_new_Zone_begin(simgrid::kernel::routing::ZoneCreationArgs* zone); // Begin description of new Zone
+XBT_PUBLIC simgrid::kernel::routing::NetZoneImpl*
+sg_platf_new_Zone_begin(simgrid::kernel::routing::ZoneCreationArgs* zone); // Begin description of new Zone