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dc7e9f2 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | /*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2026 The Stockfish developers (see AUTHORS file)
Stockfish 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 3 of the License, or
(at your option) any later version.
Stockfish 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef SCORE_H_INCLUDED
#define SCORE_H_INCLUDED
#include <variant>
#include <utility>
#include "types.h"
namespace Stockfish {
class Position;
class Score {
public:
struct Mate {
int plies;
};
struct Tablebase {
int plies;
bool win;
};
struct InternalUnits {
int value;
};
Score() = default;
Score(Value v, const Position& pos);
template<typename T>
bool is() const {
return std::holds_alternative<T>(score);
}
template<typename T>
T get() const {
return std::get<T>(score);
}
template<typename F>
decltype(auto) visit(F&& f) const {
return std::visit(std::forward<F>(f), score);
}
private:
std::variant<Mate, Tablebase, InternalUnits> score;
};
}
#endif // #ifndef SCORE_H_INCLUDED
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