toHexString method

@override String toHexString()

Returns a string representing the value of this integer in hexadecimal notation.

Example: Int64(0xf01d).toHexString() returns 'F01D'.

The string may interprets the number as unsigned, and has no leading minus, even if the value isNegative.

Example: Int64(-1).toHexString() returns 'FFFFFFFFFFFFFFFF'.

Implementation

@override
String toHexString() {
  if (isZero) return '0';
  Int64 x = this;
  String hexStr = '';
  while (!x.isZero) {
    int digit = x._l & 0xf;
    hexStr = '${_hexDigit(digit)}$hexStr';
    x = x.shiftRightUnsigned(4);
  }
  return hexStr;
}