最下位ビット以外が1になる場合があるバグ修正 (#297)

yaneurao · Jan 3, 2025 · b9b886b · b9b886b
1 parent 74d9b0e
commit b9b886b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/source/bitboard.h b/source/bitboard.h
@@ -1127,7 +1127,7 @@ inline Bitboard least_significant_square_bb(Bitboard b) {
 
 	u64 q0 = b.extract64<0>();
 	u64 q1 = b.extract64<1>();
-	return (q0 != 0) ? Bitboard(q0 & -q0 , q1) : Bitboard(q0, q1 & -q1);
+	return (q0 != 0) ? Bitboard(q0 & -q0 , 0) : Bitboard(0, q1 & -q1);
 }