History code rewrite (#1122)

[stockfish] / src / types.h

diff --git a/src/types.h b/src/types.h
index 519f6af87f28f61c81bf232e79074d74eabee424..c24f22090882b443d15618defc7fc0dd436630cb 100644 (file)
--- a/src/types.h
+++ b/src/types.h
@@ -2,7 +2,7 @@
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
   Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
-  Copyright (C) 2015-2016 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
+  Copyright (C) 2015-2017 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
@@ -76,7 +76,7 @@
 #  include <immintrin.h> // Header for _pext_u64() intrinsic
 #  define pext(b, m) _pext_u64(b, m)
 #else
-#  define pext(b, m) (0)
+#  define pext(b, m) 0
 #endif
 
 #ifdef USE_POPCNT
@@ -184,10 +184,10 @@ enum Value : int {
   VALUE_MATED_IN_MAX_PLY = -VALUE_MATE + 2 * MAX_PLY,
 
   PawnValueMg   = 188,   PawnValueEg   = 248,
-  KnightValueMg = 753,   KnightValueEg = 832,
-  BishopValueMg = 826,   BishopValueEg = 897,
-  RookValueMg   = 1285,  RookValueEg   = 1371,
-  QueenValueMg  = 2513,  QueenValueEg  = 2650,
+  KnightValueMg = 764,   KnightValueEg = 848,
+  BishopValueMg = 826,   BishopValueEg = 891,
+  RookValueMg   = 1282,  RookValueEg   = 1373,
+  QueenValueMg  = 2526,  QueenValueEg  = 2646,
 
   MidgameLimit  = 15258, EndgameLimit  = 3915
 };
@@ -205,11 +205,9 @@ enum Piece {
   PIECE_NB = 16
 };
 
-const Piece Pieces[] = { W_PAWN, W_KNIGHT, W_BISHOP, W_ROOK, W_QUEEN, W_KING,
-                         B_PAWN, B_KNIGHT, B_BISHOP, B_ROOK, B_QUEEN, B_KING };
 extern Value PieceValue[PHASE_NB][PIECE_NB];
 
-enum Depth {
+enum Depth : int {
 
   ONE_PLY = 1,
 
@@ -239,8 +237,8 @@ enum Square {
 
   NORTH =  8,
   EAST  =  1,
-  SOUTH = -8,
-  WEST  = -1,
+  SOUTH = -NORTH,
+  WEST  = -EAST,
 
   NORTH_EAST = NORTH + EAST,
   SOUTH_EAST = SOUTH + EAST,
@@ -285,19 +283,19 @@ inline Value mg_value(Score s) {
 #define ENABLE_BASE_OPERATORS_ON(T)                             \
 inline T operator+(T d1, T d2) { return T(int(d1) + int(d2)); } \
 inline T operator-(T d1, T d2) { return T(int(d1) - int(d2)); } \
-inline T operator*(int i, T d) { return T(i * int(d)); }        \
-inline T operator*(T d, int i) { return T(int(d) * i); }        \
 inline T operator-(T d) { return T(-int(d)); }                  \
 inline T& operator+=(T& d1, T d2) { return d1 = d1 + d2; }      \
 inline T& operator-=(T& d1, T d2) { return d1 = d1 - d2; }      \
-inline T& operator*=(T& d, int i) { return d = T(int(d) * i); }
 
 #define ENABLE_FULL_OPERATORS_ON(T)                             \
 ENABLE_BASE_OPERATORS_ON(T)                                     \
+inline T operator*(int i, T d) { return T(i * int(d)); }        \
+inline T operator*(T d, int i) { return T(int(d) * i); }        \
 inline T& operator++(T& d) { return d = T(int(d) + 1); }        \
 inline T& operator--(T& d) { return d = T(int(d) - 1); }        \
 inline T operator/(T d, int i) { return T(int(d) / i); }        \
 inline int operator/(T d1, T d2) { return int(d1) / int(d2); }  \
+inline T& operator*=(T& d, int i) { return d = T(int(d) * i); } \
 inline T& operator/=(T& d, int i) { return d = T(int(d) / i); }
 
 ENABLE_FULL_OPERATORS_ON(Value)
@@ -329,6 +327,18 @@ inline Score operator/(Score s, int i) {
   return make_score(mg_value(s) / i, eg_value(s) / i);
 }
 
+/// Multiplication of a Score by an integer. We check for overflow in debug mode.
+inline Score operator*(Score s, int i) {
+
+  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 );
+
+  return result;
+}
+
 inline Color operator~(Color c) {
   return Color(c ^ BLACK); // Toggle color
 }
@@ -411,6 +421,10 @@ inline Square to_sq(Move m) {
   return Square(m & 0x3F);
 }
 
+inline int from_to(Move m) {
+ return m & 0xFFF;
+}
+
 inline MoveType type_of(Move m) {
   return MoveType(m & (3 << 14));
 }