Fix a bug in king discoveries checks

[stockfish] / src / position.cpp

diff --git a/src/position.cpp b/src/position.cpp
index e1d05f614738c52c485606a94526ec2a2e8e3b76..ff93e532d999c3012e4774a35ea98a1e07c4417b 100644 (file)
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -1,13 +1,14 @@
 /*
-  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.
@@ -406,8 +407,8 @@ bool Position::piece_attacks_square(Square f, Square t) const {
   assert(square_is_ok(t));
 
   switch(piece_on(f)) {
-  case WP: return white_pawn_attacks_square(f, t);
-  case BP: return black_pawn_attacks_square(f, t);
+  case WP: return pawn_attacks_square(WHITE, f, t);
+  case BP: return pawn_attacks_square(BLACK, f, t);
   case WN: case BN: return piece_attacks_square<KNIGHT>(f, t);
   case WB: case BB: return piece_attacks_square<BISHOP>(f, t);
   case WR: case BR: return piece_attacks_square<ROOK>(f, t);
@@ -668,8 +669,8 @@ bool Position::move_attacks_square(Move m, Square s) const {
   assert(square_is_occupied(f));
 
   switch(piece_on(f)) {
-  case WP: return white_pawn_attacks_square(t, s);
-  case BP: return black_pawn_attacks_square(t, s);
+  case WP: return pawn_attacks_square(WHITE, t, s);
+  case BP: return pawn_attacks_square(BLACK, t, s);
   case WN: case BN: return piece_attacks_square<KNIGHT>(t, s);
   case WB: case BB: return piece_attacks_square<BISHOP>(t, s);
   case WR: case BR: return piece_attacks_square<ROOK>(t, s);