}
inline char file_to_char(File f) {
- return char(f - FILE_A + int('a'));
+ return char(f - FILE_A + 'a');
}
inline char rank_to_char(Rank r) {
- return char(r - RANK_1 + int('1'));
+ return char(r - RANK_1 + '1');
}
inline Square pawn_push(Color c) {