Bugfix legality null move in parsing with -testLegality off

The pointers were compared, in stead of the values.
Also in stead of rejecting null moves with legality testing off, it rejected moves on the main diagonal.

diff --git a/backend.c b/backend.c
index b9348a9..4dab307 100644 (file)
--- a/backend.c
+++ b/backend.c
@@ -4349,7 +4349,7 @@ ParseOneMove(move, moveNum, moveType, fromX, fromY, toX, toY, promoChar)
        if (appData.testLegality) {
          return (*moveType != IllegalMove);
        } else {
-         return !(fromX == fromY && toX == toY);
+         return !(*fromX == *toX && *fromY == *toY);
        }
 
       case WhiteDrop: