819 				bits = TRACK_BIT_NONE;

   819 				bits = TRACK_BIT_NONE;

   820 				break;

   820 				break;

   821 			}

   821 			}

   822 

   822 

   823 			/* If we reach here, the tile has exactly one track, and this

   823 			/* If we reach here, the tile has exactly one track, and this

   825 

   825 

   826 			track = _new_trackdir[FIND_FIRST_BIT(bits)][direction];

   826 			track = _new_trackdir[FIND_FIRST_BIT(bits)][direction];

   827 			assert(track != INVALID_TRACKDIR);

   827 			assert(track != INVALID_TRACKDIR);

   828 

   828 

   829 			si.cur_length += _length_of_track[track];

   829 			si.cur_length += _length_of_track[track];