Int64 shiftRightUnsigned()

in lib/src/int64.dart [414:439]

• 24 lines of code
• 5 McCabe index (conditional complexity)

  Int64 shiftRightUnsigned(int n) {
    if (n < 0) {
      throw ArgumentError.value(n);
    }
    if (n >= 64) {
      return ZERO;
    }

    int res0, res1, res2;
    int a2 = _MASK2 & _h; // Ensure a2 is positive.
    if (n < _BITS) {
      res2 = a2 >> n;
      res1 = (_m >> n) | (a2 << (_BITS - n));
      res0 = (_l >> n) | (_m << (_BITS - n));
    } else if (n < _BITS01) {
      res2 = 0;
      res1 = a2 >> (n - _BITS);
      res0 = (_m >> (n - _BITS)) | (_h << (_BITS01 - n));
    } else {
      res2 = 0;
      res1 = 0;
      res0 = a2 >> (n - _BITS01);
    }

    return Int64._masked(res0, res1, res2);
  }