return File(c - 'a') + FILE_A;
}
-inline int file_to_char(File f) {
- return int(f - FILE_A) + 'a';
+inline char file_to_char(File f) {
+ return char(f - FILE_A + int('a'));
}
inline Rank rank_from_char(char c) {
return Rank(c - '1') + RANK_1;
}
-inline int rank_to_char(Rank r) {
- return int(r - RANK_1) + '1';
+inline char rank_to_char(Rank r) {
+ return char(r - RANK_1 + int('1'));
}
inline Square square_from_string(const std::string& str) {