Snippet from OpenBCI_Wifi firmware

ptw-openbci-wifi-snippit.cpp

/**
 * Used to print out a long long number
 * @param n    {int64_t} The signed number
 * @param base {uint8_t} The base you want to print in. DEC, HEX, BIN
 */
String OpenBCI_Wifi_Class::getStringLLNumber(long long n, uint8_t base) {
 return String(n < 0 ? "-" : "") + getStringLLNumber((unsigned long long)(-1*n), base);
}
/**
* Used to print out a long long number
* @param n    {int64_t} The signed number
*/
String OpenBCI_Wifi_Class::getStringLLNumber(long long n) {
return getStringLLNumber(n, DEC);
}
/**
 * Used to print out an unsigned long long number
 * @param n    {uint64_t} The unsigned number
 * @param base {uint8_t} The base you want to print in. DEC, HEX, BIN
 */
String OpenBCI_Wifi_Class::getStringLLNumber(unsigned long long n, uint8_t base) {
  unsigned char buf[16 * sizeof(long)]; // Assumes 8-bit chars.
  unsigned long long i = 0;
if (n == 0) {
    return "0";
  }
  String output;
  while (n > 0) {
    buf[i++] = n % base;
    n /= base;
  }
for (; i > 0; i--) {
    output = output + String((char) (buf[i - 1] < 10 ?
      '0' + buf[i - 1] :
      'A' + buf[i - 1] - 10));
  }
  return output;
}
/**
 * Used to print out an unsigned long long number in base DEC
 * @param n    {uint64_t} The unsigned number
 */
String OpenBCI_Wifi_Class::getStringLLNumber(unsigned long long n) {
  return getStringLLNumber(n, DEC);
}