Function IsAsciiAlnum

util/string/ascii.h:87–89

}

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

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