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Move zobrist keys out of Position

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Are used by Position but do not belong to that class,
there is only one instance of them (that's why were
defined as static), so move to a proper namespace instead.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2012-08-20 18:09:57 +01:00
parent ec9038b7b4
commit 7c8b7222f5
4 changed files with 98 additions and 92 deletions
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13
src/position.h
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@@ -189,9 +189,6 @@ public:
bool pos_is_ok(int* failedStep = NULL) const;
void flip();
// Global initialization
static void init();
private:
// Initialization helpers (used while setting up a position)
void clear();
@@ -230,14 +227,6 @@ private:
Thread* thisThread;
StateInfo* st;
int chess960;
// Static variables
static Score pieceSquareTable[16][64]; // [piece][square]
static Key zobrist[2][8][64]; // [color][pieceType][square]/[piece count]
static Key zobEp[8]; // [file]
static Key zobCastle[16]; // [castleRight]
static Key zobSideToMove;
static Key zobExclusion;
};
inline int64_t Position::nodes_searched() const {
@@ -366,7 +355,7 @@ inline Key Position::key() const {
}
inline Key Position::exclusion_key() const {
return st->key ^ zobExclusion;
return st->key ^ Zobrist::exclusion;
}
inline Key Position::pawn_key() const {