Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
- Copyright (C) 2015-2019 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
+ Copyright (C) 2015-2020 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#ifndef ENDGAME_H_INCLUDED
#define ENDGAME_H_INCLUDED
-#include <map>
#include <memory>
#include <string>
#include <type_traits>
+#include <unordered_map>
#include <utility>
#include "position.h"
KBPKB, // KBP vs KB
KBPPKB, // KBPP vs KB
KBPKN, // KBP vs KN
- KNPK, // KNP vs K
- KNPKB, // KNP vs KB
KPKP // KP vs KP
};
namespace Endgames {
template<typename T> using Ptr = std::unique_ptr<EndgameBase<T>>;
- template<typename T> using Map = std::map<Key, Ptr<T>>;
+ template<typename T> using Map = std::unordered_map<Key, Ptr<T>>;
extern std::pair<Map<Value>, Map<ScaleFactor>> maps;
template<typename T>
const EndgameBase<T>* probe(Key key) {
- return map<T>().count(key) ? map<T>()[key].get() : nullptr;
+ auto it = map<T>().find(key);
+ return it != map<T>().end() ? it->second.get() : nullptr;
}
}