13   constexpr Board addQueen(int Row, int Col) const {  in addQueen()
14     return Board(State | ((uint64_t)Row << (Col * 4)));  in addQueen()
19   constexpr bool ok(int Row, int Col) const {  in ok()
20     return okRecurse(Row, Col, 0);  in ok()
22   constexpr bool okRecurse(int Row, int Col, int CheckCol) const {  in okRecurse()
24            getQueenRow(CheckCol) == Row ? false :  in okRecurse()
25            getQueenRow(CheckCol) == Row + (Col - CheckCol) ? false :  in okRecurse()
26            getQueenRow(CheckCol) == Row + (CheckCol - Col) ? false :  in okRecurse()
27            okRecurse(Row, Col, CheckCol + 1);  in okRecurse()
29   constexpr bool at(int Row, int Col) const {  in at()
30     return getQueenRow(Col) == Row;  in at()
36 constexpr Board buildBoardScan(int N, int Col, int Row, const Board &B);
38                          int N, int Col, int Row, const Board &B) {  in tryBoard()  argument
39   return Try.Failed ? buildBoardScan(N, Col, Row, B) : Try;  in tryBoard()
41 constexpr Board buildBoardScan(int N, int Col, int Row, const Board &B) {  in buildBoardScan()  argument
42   return Row == N ? Board(0, true) :  in buildBoardScan()
43          B.ok(Row, Col) ?  in buildBoardScan()
44          tryBoard(buildBoardRecurse(N, Col + 1, B.addQueen(Row, Col)),  in buildBoardScan()
45                   N, Col, Row+1, B) :  in buildBoardScan()
46          buildBoardScan(N, Col, Row + 1, B);  in buildBoardScan()
57 constexpr bool Board::check(const char *p, int Row, int Col) const {  in check()  argument
59     *p == '\n' ? check(p+1, Row+1, 0) :  in check()
60     *p == 'o' ? at(Row, Col) && check(p+1, Row, Col+1) :  in check()
61     *p == '-' ? !at(Row, Col) && check(p+1, Row, Col+1) :  in check()