Backward simplication

[stockfish] / src / position.h

diff --git a/src/position.h b/src/position.h
index 0d34aba44fe1c9e8fe74ba71dc4532e03f975cbc..1070236be818ffbad0e07e214f5aa443ef2c3234 100644 (file)
--- a/src/position.h
+++ b/src/position.h
@@ -2,6 +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
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -28,7 +29,7 @@
 #include "types.h"
 
 class Position;
-struct Thread;
+class Thread;
 
 namespace PSQT {
 
@@ -37,7 +38,7 @@ namespace PSQT {
   void init();
 }
 
-/// CheckInfo struct is initialized at constructor time and keeps info used to 
+/// CheckInfo struct is initialized at constructor time and keeps info used to
 /// detect if a move gives check.
 
 struct CheckInfo {
@@ -82,8 +83,6 @@ struct StateInfo {
 
 class Position {
 
-  friend std::ostream& operator<<(std::ostream&, const Position&);
-
 public:
   static void init();
 
@@ -210,6 +209,8 @@ private:
   bool chess960;
 };
 
+extern std::ostream& operator<<(std::ostream& os, const Position& pos);
+
 inline Color Position::side_to_move() const {
   return sideToMove;
 }