From: Marco Costalba <mcostalba@gmail.com>
Date: Mon, 20 Feb 2012 18:32:15 +0000 (+0100)
Subject: Fix a wrong check in pos_is_ok()
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=ea5616785e7cc35808d75897282109c51e823caa

Fix a wrong check in pos_is_ok()

Bug introduced by revision a44c5cf4f77b05a038
of 3/12/2011.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
---

diff --git a/src/position.cpp b/src/position.cpp
index dec33713..9376aa91 100644
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -1677,7 +1677,7 @@ bool Position::pos_is_ok(int* failedStep) const {
   if (debugBitboards)
   {
       // The intersection of the white and black pieces must be empty
-      if (!(pieces(WHITE) & pieces(BLACK)))
+      if (pieces(WHITE) & pieces(BLACK))
           return false;
 
       // The union of the white and black pieces must be equal to all