/// Overloads of bitwise operators between a Bitboard and a Square for testing
/// whether a given bit is set in a bitboard, and for setting and clearing bits.
-inline Bitboard operator&(Bitboard b, Square s) {
+inline Bitboard square_bb(Square s) {
assert(s >= SQ_A1 && s <= SQ_H8);
- return b & SquareBB[s];
-}
-
-inline Bitboard operator|(Bitboard b, Square s) {
- assert(s >= SQ_A1 && s <= SQ_H8);
- return b | SquareBB[s];
-}
-
-inline Bitboard operator^(Bitboard b, Square s) {
- assert(s >= SQ_A1 && s <= SQ_H8);
- return b ^ SquareBB[s];
-}
-
-inline Bitboard& operator|=(Bitboard& b, Square s) {
- assert(s >= SQ_A1 && s <= SQ_H8);
- return b |= SquareBB[s];
-}
-
-inline Bitboard& operator^=(Bitboard& b, Square s) {
- assert(s >= SQ_A1 && s <= SQ_H8);
- return b ^= SquareBB[s];
-}
+ return SquareBB[s];
+}
+
+inline Bitboard operator&( Bitboard b, Square s) { return b & square_bb(s); }
+inline Bitboard operator|( Bitboard b, Square s) { return b | square_bb(s); }
+inline Bitboard operator^( Bitboard b, Square s) { return b ^ square_bb(s); }
+inline Bitboard& operator|=(Bitboard& b, Square s) { return b |= square_bb(s); }
+inline Bitboard& operator^=(Bitboard& b, Square s) { return b ^= square_bb(s); }
constexpr bool more_than_one(Bitboard b) {
return b & (b - 1);