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[stockfish] / src / bitboard.h

diff --git a/src/bitboard.h b/src/bitboard.h
index b99cc2597ceb7959709b50c1dbfa3514e2479383..2c51b073de3042ec1e7f1cf455b9d247ac927cd9 100644 (file)
--- a/src/bitboard.h
+++ b/src/bitboard.h
@@ -1,7 +1,7 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
-  Copyright (C) 2008-2012 Marco Costalba, Joona Kiiski, Tord Romstad
+  Copyright (C) 2008-2013 Marco Costalba, Joona Kiiski, 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
@@ -33,7 +33,7 @@ void print(Bitboard b);
 namespace Bitbases {
 
 void init_kpk();
-uint32_t probe_kpk(Square wksq, Square wpsq, Square bksq, Color stm);
+bool probe_kpk(Square wksq, Square wpsq, Square bksq, Color us);
 
 }
 
@@ -280,7 +280,7 @@ FORCE_INLINE Square msb(Bitboard b) {
 
 FORCE_INLINE Square pop_lsb(Bitboard* b) {
   const Square s = lsb(*b);
-  *b &= ~(1ULL << s);
+  *b &= *b - 1;
   return s;
 }