Fix some warnings under +w1 HP-UX compile

[stockfish] / src / piece.cpp

diff --git a/src/piece.cpp b/src/piece.cpp
index 1fdc4dbea4e7493ace1723e873c3d9ca975e4597..b287994975cbd5360d8f531758fa82931e4cb96b 100644 (file)
--- a/src/piece.cpp
+++ b/src/piece.cpp
@@ -38,7 +38,7 @@ static const string PieceChars(" pnbrqk PNBRQK");
 
 char piece_type_to_char(PieceType pt, bool upcase) {
 
-  return PieceChars[pt + upcase * 7];
+  return PieceChars[pt + int(upcase) * 7];
 }
 
 PieceType piece_type_from_char(char c) {