mirror of
https://github.com/sockspls/badfish
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8300ab149c
Retire open(), close() and name() from public visibility and greately simplify the code. It is amazing how much can be squeezed out of an already mature code ! No functional change Signed-off-by: Marco Costalba <mcostalba@gmail.com>
58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
/*
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Stockfish, a UCI chess playing engine derived from Glaurung 2.1
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Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
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Copyright (C) 2008-2012 Marco Costalba, Joona Kiiski, Tord Romstad
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Stockfish is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Stockfish is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#if !defined(BOOK_H_INCLUDED)
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#define BOOK_H_INCLUDED
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#include <fstream>
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#include <string>
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#include "position.h"
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#include "rkiss.h"
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/// A Polyglot book is a series of "entries" of 16 bytes. All integers are
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/// stored highest byte first (regardless of size). The entries are ordered
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/// according to key. Lowest key first.
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struct BookEntry {
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uint64_t key;
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uint16_t move;
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uint16_t count;
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uint32_t learn;
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};
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class Book : private std::ifstream {
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public:
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Book();
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~Book();
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Move probe(const Position& pos, const std::string& fName, bool pickBest);
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private:
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template<typename T> Book& operator>>(T& n);
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bool open(const char* fName);
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void binary_search(uint64_t key);
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RKISS RKiss;
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std::string fileName;
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size_t size;
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};
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#endif // !defined(BOOK_H_INCLUDED)
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