366 const STATE_DEAD: StatePtr = STATE_UNKNOWN + 1;  constant
371 const STATE_QUIT: StatePtr = STATE_DEAD + 1;
469                 Some(STATE_DEAD) => return Result::NoMatch(at),  in forward()
499                 Some(STATE_DEAD) => return Result::NoMatch(at),  in reverse()
530                 Some(STATE_DEAD) => return Result::NoMatch(at),  in forward_many()
540                 debug_assert!(dfa.last_match_si != STATE_DEAD);  in forward_many()
710                     Some(STATE_DEAD) => return result.set_non_match(at),  in exec_at()
734             Some(STATE_DEAD) => return result.set_non_match(text.len()),  in exec_at()
815                     Some(STATE_DEAD) => return result.set_non_match(at),  in exec_at_reverse()
836             Some(STATE_DEAD) => return result.set_non_match(0),  in exec_at_reverse()
1160             None => return Some(STATE_DEAD),  in cached_state()
1350         if si == STATE_DEAD {  in next_state()
1351             return Some(STATE_DEAD);  in next_state()
1356             STATE_DEAD => Some(STATE_DEAD),  in next_state()
1390             STATE_DEAD => return Some(STATE_DEAD),  in start_state()
1786                 STATE_DEAD => {  in fmt()
1833     if si == STATE_DEAD {  in show_state_ptr()