static const char PieceChars[] = " pnbrqk";
char piece_type_to_char(PieceType pt, bool upcase) {
- return upcase? toupper(PieceChars[pt]) : PieceChars[pt];
+ return char(upcase? toupper(PieceChars[pt]) : PieceChars[pt]);
}
PieceType piece_type_from_char(char c) {