10进制long型和16进制char[]型转换

long getSize(int hByte, int lByte) {
    long result = (hByte / 16) * (16 * 16 * 16);
    result += (hByte % 16) * (16 * 16);
    result += (lByte / 16) * (16);
    result += (lByte % 16) * (1);
    return result;
}

unsigned char *LongToByte(unsigned long value) {
    unsigned char result[5];
    unsigned long cacheVal = value;
    int i = 0;
    unsigned char *p;

    for (i = 0; i < 4; i++) {
        result[i] = (unsigned char) (cacheVal % 16);
        cacheVal = cacheVal / 16;
        result[i] += (unsigned char) (cacheVal % 16) * 16;
        cacheVal = cacheVal / 16;
    }

    result[4] = '\0';
    p = result;
    return p;
}