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Small Position::clear() cleanup

Browse source 
No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2009-02-23 12:48:57 +01:00
parent da7a62852a
commit 243fa483d7
1 changed files with 7 additions and 18 deletions
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25
src/position.cpp
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@ -23,8 +23,9 @@
//// ////
#include <cassert> #include <cassert>
#include <iostream> #include <cstring>
#include <fstream> #include <fstream>
#include <iostream>
#include "mersenne.h" #include "mersenne.h"
#include "movegen.h" #include "movegen.h"
@ -1645,16 +1646,14 @@ int Position::see(Square from, Square to) const {
void Position::clear() { void Position::clear() {
st = &startState; st = &startState;
st->previous = NULL; // We should never dereference this memset(st, 0, sizeof(StateInfo));
st->epSquare = SQ_NONE;
memset(index, 0, sizeof(int) * 64);
memset(byColorBB, 0, sizeof(Bitboard) * 2);
for (int i = 0; i < 64; i++) for (int i = 0; i < 64; i++)
{
board[i] = EMPTY; board[i] = EMPTY;
index[i] = 0;
}
for (int i = 0; i < 2; i++)
byColorBB[i] = EmptyBoardBB;
for (int i = 0; i < 7; i++) for (int i = 0; i < 7; i++)
{ {
@ -1664,21 +1663,11 @@ void Position::clear() {
pieceList[0][i][j] = pieceList[1][i][j] = SQ_NONE; pieceList[0][i][j] = pieceList[1][i][j] = SQ_NONE;
} }
st->checkersBB = EmptyBoardBB;
for (Color c = WHITE; c <= BLACK; c++)
st->pinners[c] = st->pinned[c] = st->dcCandidates[c] = ~EmptyBoardBB;
sideToMove = WHITE; sideToMove = WHITE;
gamePly = 0; gamePly = 0;
initialKFile = FILE_E; initialKFile = FILE_E;
initialKRFile = FILE_H; initialKRFile = FILE_H;
initialQRFile = FILE_A; initialQRFile = FILE_A;
st->lastMove = MOVE_NONE;
st->castleRights = NO_CASTLES;
st->epSquare = SQ_NONE;
st->rule50 = 0;
st->previous = NULL;
} }