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/*
iter.cc Iterators
Copyright (c) 2000, 2001, 2003 Kriang Lerdsuwanakij
email: lerdsuwa@users.sourceforge.net
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "iter.h"
// FIXME: Iterator data are shared and not thread-safe.
int empty_endgame_size;
empty_endgame_entry *empty_endgame_head;
empty_endgame_entry empty_endgame_order[NUM_MOVE];
void init_endgame_iterator(byte_board_info *board, empty_endgame_info &info)
{
int count = 0;
board_full_endgame_iterator iter;
iter.init_pos();
info.empty_endgame_head = 0;
do {
if (board->is_empty(iter.pos)) {
if (!count)
info.empty_endgame_head = info.empty_endgame_order;
else
info.empty_endgame_order[count-1].next = &(info.empty_endgame_order[count]);
info.empty_endgame_order[count].pos = iter.pos;
info.empty_endgame_order[count].next = 0;
count++;
}
} while (iter.next());
info.empty_endgame_size = count;
}
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