WebSVN – Games.Chess Giants – Diff – //engine-stockfish/types.h

   Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
-  Copyright (C) 2015-2018 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
+  Copyright (C) 2015-2019 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.
 #else
 #  define pext(b, m) 0
 #endif
 #ifdef USE_POPCNT
-const bool HasPopCnt = true;
+constexpr bool HasPopCnt = true;
 #else
-const bool HasPopCnt = false;
+constexpr bool HasPopCnt = false;
 #endif
 #ifdef USE_PEXT
-const bool HasPext = true;
+constexpr bool HasPext = true;
 #else
-const bool HasPext = false;
+constexpr bool HasPext = false;
 #endif
 #ifdef IS_64BIT
-const bool Is64Bit = true;
+constexpr bool Is64Bit = true;
 #else
-const bool Is64Bit = false;
+constexpr bool Is64Bit = false;
 #endif
 typedef uint64_t Key;
 typedef uint64_t Bitboard;
-const int MAX_MOVES = 256;
+constexpr int MAX_MOVES = 256;
-const int MAX_PLY   = 128;
+constexpr int MAX_PLY   = 128;
 /// A move needs 16 bits to be stored
 ///
 /// bit  0- 5: destination square (from 0 to 63)
 /// bit  6-11: origin square (from 0 to 63)
   WHITE_OOO = WHITE_OO << 1,
   BLACK_OO  = WHITE_OO << 2,
   BLACK_OOO = WHITE_OO << 3,
   ANY_CASTLING = WHITE_OO | WHITE_OOO | BLACK_OO | BLACK_OOO,
   CASTLING_RIGHT_NB = 16
-};
-template<Color C, CastlingSide S> struct MakeCastling {
-  static constexpr CastlingRight
-  right = C == WHITE ? S == QUEEN_SIDE ? WHITE_OOO : WHITE_OO
-                     : S == QUEEN_SIDE ? BLACK_OOO : BLACK_OO;
 };
 enum Phase {
   PHASE_ENDGAME,
   PHASE_MIDGAME = 128,
   MG = 0, EG = 1, PHASE_NB = 2
 };
 enum ScaleFactor {
   SCALE_FACTOR_DRAW    = 0,
-  SCALE_FACTOR_ONEPAWN = 48,
   SCALE_FACTOR_NORMAL  = 64,
   SCALE_FACTOR_MAX     = 128,
   SCALE_FACTOR_NONE    = 255
 };
   VALUE_NONE      = 32002,
   VALUE_MATE_IN_MAX_PLY  =  VALUE_MATE - 2 * MAX_PLY,
   VALUE_MATED_IN_MAX_PLY = -VALUE_MATE + 2 * MAX_PLY,
-  PawnValueMg   = 171,   PawnValueEg   = 240,
+  PawnValueMg   = 136,   PawnValueEg   = 208,
-  KnightValueMg = 764,   KnightValueEg = 848,
+  KnightValueMg = 782,   KnightValueEg = 865,
-  BishopValueMg = 826,   BishopValueEg = 891,
+  BishopValueMg = 830,   BishopValueEg = 918,
-  RookValueMg   = 1282,  RookValueEg   = 1373,
+  RookValueMg   = 1289,  RookValueEg   = 1378,
-  QueenValueMg  = 2526,  QueenValueEg  = 2646,
+  QueenValueMg  = 2529,  QueenValueEg  = 2687,
   MidgameLimit  = 15258, EndgameLimit  = 3915
 };
 enum PieceType {
   NO_PIECE_TYPE, PAWN, KNIGHT, BISHOP, ROOK, QUEEN, KING,
   ALL_PIECES = 0,
-  QUEEN_DIAGONAL = 7,
   PIECE_TYPE_NB = 8
 };
 enum Piece {
   NO_PIECE,
 enum Rank : int {
   RANK_1, RANK_2, RANK_3, RANK_4, RANK_5, RANK_6, RANK_7, RANK_8, RANK_NB
 };
-/// Score enum stores a middlegame and an endgame value in a single integer
+/// Score enum stores a middlegame and an endgame value in a single integer (enum).
-/// (enum). The least significant 16 bits are used to store the endgame value
+/// The least significant 16 bits are used to store the middlegame value and the
-/// and the upper 16 bits are used to store the middlegame value. Take some
+/// upper 16 bits are used to store the endgame value. We have to take care to
-/// care to avoid left-shifting a signed int to avoid undefined behavior.
+/// avoid left-shifting a signed int to avoid undefined behavior.
 enum Score : int { SCORE_ZERO };
 constexpr Score make_score(int mg, int eg) {
   return Score((int)((unsigned int)eg << 16) + mg);
+}
 constexpr Value operator-(Value v, int i) { return Value(int(v) - i); }
 inline Value& operator+=(Value& v, int i) { return v = v + i; }
 inline Value& operator-=(Value& v, int i) { return v = v - i; }
 /// Additional operators to add a Direction to a Square
-inline Square operator+(Square s, Direction d) { return Square(int(s) + int(d)); }
+constexpr Square operator+(Square s, Direction d) { return Square(int(s) + int(d)); }
-inline Square operator-(Square s, Direction d) { return Square(int(s) - int(d)); }
+constexpr Square operator-(Square s, Direction d) { return Square(int(s) - int(d)); }
-inline Square& operator+=(Square &s, Direction d) { return s = s + d; }
+inline Square& operator+=(Square& s, Direction d) { return s = s + d; }
-inline Square& operator-=(Square &s, Direction d) { return s = s - d; }
+inline Square& operator-=(Square& s, Direction d) { return s = s - d; }
 /// Only declared but not defined. We don't want to multiply two scores due to
 /// a very high risk of overflow. So user should explicitly convert to integer.
 Score operator*(Score, Score) = delete;
   Score result = Score(int(s) * i);
   assert(eg_value(result) == (i * eg_value(s)));
   assert(mg_value(result) == (i * mg_value(s)));
-  assert((i == 0) || (result / i) == s );
+  assert((i == 0) || (result / i) == s);
   return result;
+}
 constexpr Color operator~(Color c) {
 constexpr PieceType promotion_type(Move m) {
   return PieceType(((m >> 12) & 3) + KNIGHT);
+}
-inline Move make_move(Square from, Square to) {
+constexpr Move make_move(Square from, Square to) {
   return Move((from << 6) + to);
+}
 template<MoveType T>
 constexpr Move make(Square from, Square to, PieceType pt = KNIGHT) {

Subversion Repositories Games.Chess Giants

Games.Chess Giants//engine-stockfish/types.h – Rev 169 → 185