//// Prototypes
////
-extern char piece_type_to_char(PieceType pt, bool upcase);
+extern char piece_type_to_char(PieceType pt, bool upcase = false);
extern PieceType piece_type_from_char(char c);
extern bool piece_is_ok(Piece pc);
extern bool piece_type_is_ok(PieceType pt);