#include <cstddef>
#include "bitboard.h"
-#include "bitcount.h"
#include "types.h"
+
/// The checkInfo struct is initialized at c'tor time and keeps info used
/// to detect if a move gives check.
class Position;
bool empty(Square s) const;
template<PieceType Pt> int count(Color c) const;
template<PieceType Pt> const Square* list(Color c) const;
- int total_piece_count() const;
// Castling
int can_castle(Color c) const;
return st->rule50;
}
-inline int Position::total_piece_count() const {
- return HasPopCnt ? popcount<Full>(pieces()) : pieceCount[WHITE][ALL_PIECES];
-}
-
inline bool Position::opposite_bishops() const {
return pieceCount[WHITE][BISHOP] == 1
byColorBB[c] |= s;
index[s] = pieceCount[c][pt]++;
pieceList[c][pt][index[s]] = s;
- if (!HasPopCnt)
- pieceCount[WHITE][ALL_PIECES]++;
+ pieceCount[c][ALL_PIECES]++;
}
inline void Position::move_piece(Square from, Square to, Color c, PieceType pt) {
index[lastSquare] = index[s];
pieceList[c][pt][index[lastSquare]] = lastSquare;
pieceList[c][pt][pieceCount[c][pt]] = SQ_NONE;
- if (!HasPopCnt)
- pieceCount[WHITE][ALL_PIECES]--;
+ pieceCount[c][ALL_PIECES]--;
}
#endif // #ifndef POSITION_H_INCLUDED
else
{
// Check Tablebases at root
- int piecesCnt = RootPos.total_piece_count();
+ int piecesCnt = RootPos.count<ALL_PIECES>(WHITE) + RootPos.count<ALL_PIECES>(BLACK);
TBCardinality = Options["SyzygyProbeLimit"];
TBProbeDepth = Options["SyzygyProbeDepth"] * ONE_PLY;
if (TBCardinality > Tablebases::TBLargest)
bool inCheck, givesCheck, singularExtensionNode, improving;
bool captureOrPromotion, dangerous, doFullDepthSearch;
int moveCount, quietCount;
+ int piecesCnt;
// Step 1. Initialize node
Thread* thisThread = pos.this_thread();
}
// Step 4a. Tablebase probe
+ piecesCnt = pos.count<ALL_PIECES>(WHITE) + pos.count<ALL_PIECES>(BLACK);
+
if ( !RootNode
- && pos.total_piece_count() <= TBCardinality
- && ( pos.total_piece_count() < TBCardinality || depth >= TBProbeDepth )
- && pos.rule50_count() == 0)
+ && piecesCnt <= TBCardinality
+ && (piecesCnt < TBCardinality || depth >= TBProbeDepth)
+ && pos.rule50_count() == 0)
{
int found, v = Tablebases::probe_wdl(pos, &found);