50-moves rule improvement for transposition table

[stockfish] / src / evaluate.h

diff --git a/src/evaluate.h b/src/evaluate.h
index 06ce9d48a631e8079bd3fc04c24e2ec998d2f89b..077de70c97427b9ec13bf8f4637e7f143c579e75 100644 (file)
--- a/src/evaluate.h
+++ b/src/evaluate.h
@@ -1,7 +1,8 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
-  Copyright (C) 2008-2012 Marco Costalba, Joona Kiiski, Tord Romstad
+  Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
+  Copyright (C) 2015-2020 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
@@ -17,23 +18,22 @@
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#if !defined(EVALUATE_H_INCLUDED)
+#ifndef EVALUATE_H_INCLUDED
 #define EVALUATE_H_INCLUDED
 
+#include <string>
+
 #include "types.h"
 
 class Position;
 
 namespace Eval {
 
-extern Color RootColor;
-extern Value ContemptFactor;
-extern Value ValueDraw[2];
+constexpr Value Tempo = Value(28); // Must be visible to search
 
-extern void init();
-extern Value evaluate(const Position& pos, Value& margin);
-extern std::string trace(const Position& pos);
+std::string trace(const Position& pos);
 
+Value evaluate(const Position& pos);
 }
 
-#endif // !defined(EVALUATE_H_INCLUDED)
+#endif // #ifndef EVALUATE_H_INCLUDED