#ifndef BITBOARD_H_INCLUDED
#define BITBOARD_H_INCLUDED
-#include "types.h"
+#include <string>
-extern Bitboard pext(Bitboard b, Bitboard mask);
+#include "types.h"
namespace Bitboards {
}
inline int file_distance(Square s1, Square s2) {
- return abs(file_of(s1) - file_of(s2));
+ return dist(file_of(s1), file_of(s2));
}
inline int rank_distance(Square s1, Square s2) {
- return abs(rank_of(s1) - rank_of(s2));
+ return dist(rank_of(s1), rank_of(s2));
}
unsigned* const Shifts = Pt == ROOK ? RShifts : BShifts;
if (HasPext)
- return unsigned(pext(occ, Masks[s]));
+ return unsigned(_pext_u64(occ, Masks[s]));
if (Is64Bit)
return unsigned(((occ & Masks[s]) * Magics[s]) >> Shifts[s]);