2 Stockfish, a UCI chess playing engine derived from Glaurung 2.1
3 Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
4 Copyright (C) 2008-2010 Marco Costalba, Joona Kiiski, Tord Romstad
6 Stockfish is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 Stockfish is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #if !defined(BOOK_H_INCLUDED)
21 #define BOOK_H_INCLUDED
30 /// A Polyglot book is a series of "entries" of 16 bytes. All integers are
31 /// stored highest byte first (regardless of size). The entries are ordered
32 /// according to key. Lowest key first.
44 void open(const std::string& fileName);
46 Move probe(const Position& pos, bool findBestMove);
47 const std::string name() const { return bookName; }
50 template<typename T> Book& operator>>(T& n);
52 BookEntry read_entry(int idx);
53 int first_entry(uint64_t key);
56 std::ifstream bookFile;
61 #endif // !defined(BOOK_H_INCLUDED)