//enum for one hot codingstruct state_t {  enum onehot_t {    STATE_0 = 0, STATE_1 = 1, STATE_2 = 2, STATE_3 = 4,    STATE_4 = 8, STATE_5 = 16, STATE_6 = 32 };  state_t::onehot_t state;  int      delay;  unsigned data;};