@Override
  public int intValue() {
    int unsigned = this.mag.getV0() & SqlMathUtil.FULLBITS_31;
    return this.negative ? -unsigned : unsigned;
  }
Specialized version.

@param o
         the object to compare
@return whether the object is equal to this object
common/src/java/org/apache/hadoop/hive/common/type/SignedInt128.java