Method entry

examples/api/multiple_switch.cpp:80–82

{
  using base = DefectiveSwitch<inum>;
  void entry() override {
    DumpState(inum, "OFF", base::on_counter, base::defect_level);
  };
  void react(Toggle const &) override {
    if((rand() % (base::defect_level + 1)) == 0)
      base::template transit< On<inum> >();