X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fbook.cpp;h=bae224ba586482e7aa805281dd2bb76ba0b9f232;hp=3ca5efe31cc41d38fc6b373e1eeb8dcdbc47e6a7;hb=a9e55d43262d11a916bdfa68cd1de0174d884cd3;hpb=c034cce27c5dfb28f4b3c430e365675710ec96c2;ds=sidebyside

diff --git a/src/book.cpp b/src/book.cpp
index 3ca5efe3..bae224ba 100644
--- a/src/book.cpp
+++ b/src/book.cpp
@@ -1,17 +1,18 @@
 /*
-  Glaurung, a UCI chess playing engine.
-  Copyright (C) 2004-2008 Tord Romstad
+  Stockfish, a UCI chess playing engine derived from Glaurung 2.1
+  Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
+  Copyright (C) 2008 Marco Costalba
 
-  Glaurung is free software: you can redistribute it and/or modify
+  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.
-  
-  Glaurung is distributed in the hope that it will be useful,
+
+  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/>.
 */
@@ -316,22 +317,22 @@ namespace {
 
 
   /// Indices to the Random64[] array
-  
+
   const int RandomPiece = 0;
   const int RandomCastle = 768;
   const int RandomEnPassant = 772;
   const int RandomTurn = 780;
 
-  
+
   /// Convert pieces to the range 0..1
-  
+
   const int PieceTo12[] = {
     0, 0, 2, 4, 6, 8, 10, 0, 0, 1, 3, 5, 7, 9, 11
   };
 
 
   /// Prototypes
-  
+
   uint64_t book_key(const Position &pos);
   uint64_t book_piece_key(Piece p, Square s);
   uint64_t book_castle_key(const Position &pos);
@@ -363,7 +364,7 @@ void Book::open(const std::string &fName) {
   if (!bookFile.is_open())
       return;
 
-  bookFile.seekg(0, std::ios::end);
+  bookFile.seekg(0, std::ios::end);
   bookSize = bookFile.tellg() / 16;
   bookFile.seekg(0, std::ios::beg);
 
@@ -387,7 +388,7 @@ void Book::close() {
 /// Book::is_open() tests whether a book file has been opened.
 
 bool Book::is_open() const {
-  
+
   return bookFile.is_open() && bookSize != 0;
 }
 
@@ -399,7 +400,7 @@ const std::string Book::file_name() const {
 
   return bookFile.is_open() ? fileName : "";
 }
-  
+
 
 /// Book::get_move() gets a book move for a given position.  Returns
 /// MOVE_NONE if no book move is found.
@@ -523,7 +524,7 @@ namespace {
 
     return result;
   }
-        
+
 
   uint64_t book_piece_key(Piece p, Square s) {
     return Random64[RandomPiece + (PieceTo12[int(p)]^1)*64 + int(s)];
@@ -544,29 +545,29 @@ namespace {
     return result;
   }
 
-  
+
   uint64_t book_ep_key(const Position &pos) {
     return (pos.ep_square() == SQ_NONE)?
       0ULL : Random64[RandomEnPassant + square_file(pos.ep_square())];
   }
 
-  
+
   uint64_t book_color_key(const Position &pos) {
     return (pos.side_to_move() == WHITE)? Random64[RandomTurn] : 0ULL;
   }
-  
+
 
   uint16_t read_integer16(std::ifstream& file) {
-    
+
     uint64_t n = read_integer(file, 2);
     assert(n == (uint16_t)n);
-    return (uint16_t)n;      
+    return (uint16_t)n;
   }
 
 
   uint64_t read_integer64(std::ifstream& file) {
-    
-    return read_integer(file, 8);      
+
+    return read_integer(file, 8);
   }