From de1dc4f2de7d22c9ea1b33b9caee276651ef7c6d Mon Sep 17 00:00:00 2001
From: Marco Costalba <mcostalba@gmail.com>
Date: Sun, 9 Jun 2013 23:24:36 +0200
Subject: [PATCH] Don't need to expose namespace Zobrist

It can be local to position.cpp

No functional change.
---
 src/position.cpp | 15 ++++++++++-----
 src/position.h   |  4 ----
 src/types.h      |  9 ---------
 3 files changed, 10 insertions(+), 18 deletions(-)

diff --git a/src/position.cpp b/src/position.cpp
index 05a02f15..c5e02940 100644
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -46,11 +46,16 @@ Value PieceValue[PHASE_NB][PIECE_NB] = {
 { VALUE_ZERO, PawnValueMg, KnightValueMg, BishopValueMg, RookValueMg, QueenValueMg },
 { VALUE_ZERO, PawnValueEg, KnightValueEg, BishopValueEg, RookValueEg, QueenValueEg } };
 
-Key Zobrist::psq[COLOR_NB][PIECE_TYPE_NB][SQUARE_NB];
-Key Zobrist::enpassant[FILE_NB];
-Key Zobrist::castle[CASTLE_RIGHT_NB];
-Key Zobrist::side;
-Key Zobrist::exclusion;
+namespace Zobrist {
+
+  Key psq[COLOR_NB][PIECE_TYPE_NB][SQUARE_NB];
+  Key enpassant[FILE_NB];
+  Key castle[CASTLE_RIGHT_NB];
+  Key side;
+  Key exclusion;
+}
+
+Key Position::exclusion_key() const { return st->key ^ Zobrist::exclusion;}
 
 namespace {
 
diff --git a/src/position.h b/src/position.h
index c25244a6..bebf617f 100644
--- a/src/position.h
+++ b/src/position.h
@@ -346,10 +346,6 @@ inline Key Position::key() const {
   return st->key;
 }
 
-inline Key Position::exclusion_key() const {
-  return st->key ^ Zobrist::exclusion;
-}
-
 inline Key Position::pawn_key() const {
   return st->pawnKey;
 }
diff --git a/src/types.h b/src/types.h
index 43b01bc9..ade9a620 100644
--- a/src/types.h
+++ b/src/types.h
@@ -328,15 +328,6 @@ inline Score operator/(Score s, int i) {
 #undef ENABLE_OPERATORS_ON
 #undef ENABLE_SAFE_OPERATORS_ON
 
-namespace Zobrist {
-
-  extern Key psq[COLOR_NB][PIECE_TYPE_NB][SQUARE_NB];
-  extern Key enpassant[FILE_NB];
-  extern Key castle[CASTLE_RIGHT_NB];
-  extern Key side;
-  extern Key exclusion;
-}
-
 extern Value PieceValue[PHASE_NB][PIECE_NB];
 extern int SquareDistance[SQUARE_NB][SQUARE_NB];
 
-- 
2.39.2