Function IsAsciiAlpha

util/string/ascii.h:83–85

}

inline bool IsAsciiAlpha(unsigned char c) {
    return ::NPrivate::ASCII_CLASS[c] & ::NPrivate::CC_ALPHA;
}

inline bool IsAsciiAlnum(unsigned char c) {
    return ::NPrivate::ASCII_CLASS[c] & ::NPrivate::CC_ALNUM;