#include <fstream>
#include <string>
-#include "move.h"
#include "position.h"
#include "rkiss.h"
-// A Polyglot book is a series of "entries" of 16 bytes. All integers are
-// stored highest byte first (regardless of size). The entries are ordered
-// according to key. Lowest key first.
+/// A Polyglot book is a series of "entries" of 16 bytes. All integers are
+/// stored highest byte first (regardless of size). The entries are ordered
+/// according to key. Lowest key first.
struct BookEntry {
uint64_t key;
uint16_t move;
~Book();
void open(const std::string& fileName);
void close();
- Move get_move(const Position& pos, bool findBestMove);
+ Move probe(const Position& pos, bool findBestMove);
const std::string name() const { return bookName; }
private:
- // read n chars from the file stream and converts them in an
- // integer number. Integers are stored with highest byte first.
- template<int n> uint64_t get_int();
-
- template<typename T>
- Book& operator>>(T& n) { n = (T)get_int<sizeof(T)>(); return *this; }
+ template<typename T> Book& operator>>(T& n);
BookEntry read_entry(int idx);
- int find_entry(uint64_t key);
+ int first_entry(uint64_t key);
+ RKISS RKiss;
std::ifstream bookFile;
std::string bookName;
int bookSize;
- RKISS RKiss;
};
-// Yes, we indulge a bit here ;-)
-template<int n> inline uint64_t Book::get_int() { return 256 * get_int<n-1>() + bookFile.get(); }
-template<> inline uint64_t Book::get_int<1>() { return bookFile.get(); }
-
#endif // !defined(BOOK_H_INCLUDED)