- simgrid::s4u::Host* jupiter = simgrid::s4u::Host::by_name("Jupiter");
- simgrid::s4u::Host* fafard = simgrid::s4u::Host::by_name("Fafard");
- simgrid::s4u::Link* link1 = simgrid::s4u::Link::by_name("1");
- simgrid::s4u::Link* link2 = simgrid::s4u::Link::by_name("2");
+ const simgrid::s4u::Host* jupiter = simgrid::s4u::Host::by_name("Jupiter");
+ const simgrid::s4u::Host* fafard = simgrid::s4u::Host::by_name("Fafard");
+ const simgrid::s4u::Link* link1 = simgrid::s4u::Link::by_name("1");
+ const simgrid::s4u::Link* link2 = simgrid::s4u::Link::by_name("2");