Use per-thread dynamic contempt

[stockfish] / src / evaluate.h

diff --git a/src/evaluate.h b/src/evaluate.h
index d9e032556bb8ad840f78624cfd7c9b84b79122ba..ccc6d5fa7b4b867e15786b328367fd99932bbfe9 100644 (file)
--- a/src/evaluate.h
+++ b/src/evaluate.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) 2015-2017 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
+  Copyright (C) 2015-2018 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
@@ -21,6 +21,7 @@
 #ifndef EVALUATE_H_INCLUDED
 #define EVALUATE_H_INCLUDED
 
+#include <atomic>
 #include <string>
 
 #include "types.h"
@@ -29,9 +30,7 @@ class Position;
 
 namespace Eval {
 
-const Value Tempo = Value(20); // Must be visible to search
-
-extern Score Contempt;
+constexpr Value Tempo = Value(20); // Must be visible to search
 
 std::string trace(const Position& pos);