# toUnsigned method

BigInteger toUnsigned(

1. int bitLength

)

Returns the value of this BigInteger masked to an unsigned representation with the given `bitLength`.

Example:

    final x = BigInteger.fromInt(-1);
    print(x.toUnsigned(8)); // 255

## Implementation

    BigInteger toUnsigned(int bitLength) {
      if (bitLength < 0) {
        throw InvalidFormatException('bitLength must be non-negative');
      }
      return BigInteger._(_value.toUnsigned(bitLength));
    }