Examples of java.math.BigInteger.longValue()

java.math.BigInteger.longValue()
sun.com/docs/books/jls/second_edition/html/conversions.doc.html#25363">narrowing primitive conversion from {@code long} to{@code int} as defined in the Java Language Specification: if this BigInteger is too big to fit in a {@code long}, only the low-order 64 bits are returned. Note that this conversion can lose information about the overall magnitude of the BigInteger value as well as return a result with the opposite sign. @return this BigInteger converted to a {@code long}.

            
            // But we may over/underflow, let's check:
            if (neg) {
                bi = bi.negate();
                if (bi.compareTo(BD_MIN_LONG) >= 0) {
                    return bi.longValue();
                }
            } else {
                if (bi.compareTo(BD_MAX_LONG) <= 0) {
                    return bi.longValue();
                }

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                if (bi.compareTo(BD_MIN_LONG) >= 0) {
                    return bi.longValue();
                }
            } else {
                if (bi.compareTo(BD_MAX_LONG) <= 0) {
                    return bi.longValue();
                }
            }


            throw new IllegalArgumentException("value \""+lexicalDesc(lexical)+"\" not a valid long: overflow.");
        }

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        {
            litValue = fLiteral;
        }
        else if ((iLiteral = p.parseIntegerLiteral()) != null)
        {
            litValue = Long.valueOf(iLiteral.longValue());
        }
        else if ((bLiteral = p.parseBooleanLiteral()) != null)
        {
            litValue = bLiteral;
        }

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        {
            litValue = fLiteral;
        }
        else if ((iLiteral = p.parseIntegerLiteral()) != null)
        {
            litValue = Long.valueOf(iLiteral.longValue());
        }
        else if ((bLiteral = p.parseBooleanLiteralIgnoreCase()) != null)
        {
            litValue = bLiteral;
        }

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        return values.get(index);
      case SUM:
        BigInteger sum = BigInteger.valueOf(0);
        for (int i = 0; i < values.size(); ++i)
          sum = sum.add(BigInteger.valueOf(values.get(i)));
        return sum.longValue();
      case MIN:
        BigInteger minimum = BigInteger.valueOf(values.get(0));
        for (int i = 1; i < values.size(); ++i)
          if (minimum.compareTo(BigInteger.valueOf(
              values.get(i))) > 0)

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        BigInteger minimum = BigInteger.valueOf(values.get(0));
        for (int i = 1; i < values.size(); ++i)
          if (minimum.compareTo(BigInteger.valueOf(
              values.get(i))) > 0)
            minimum = BigInteger.valueOf(values.get(i));
        return minimum.longValue();
      case MAX:
        BigInteger maximum = BigInteger.valueOf(values.get(0));
        for (int i = 1; i < values.size(); ++i)
          if (maximum.compareTo(BigInteger.valueOf(
              values.get(i))) < 0)

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        BigInteger maximum = BigInteger.valueOf(values.get(0));
        for (int i = 1; i < values.size(); ++i)
          if (maximum.compareTo(BigInteger.valueOf(
              values.get(i))) < 0)
            maximum = BigInteger.valueOf(values.get(i));
        return maximum.longValue();
      case FIRST:
        return values.get(0);
      case LAST:
        return values.get(values.size() - 1);
      default:

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        BigInteger big = value.getValue();


        if (big.compareTo(LONG_MIN) < 0 || big.compareTo(LONG_MAX) > 0) {
            throw value.getRuntime().newRangeError("bignum too big to convert into `long'");
        }
        return big.longValue();
    }


    /** rb_big2dbl
     * 
     */

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        else if (arg instanceof RubyBignum) {
            BigInteger big = ((RubyBignum)arg).getValue();
            if (big.compareTo(QUAD_MIN) < 0 || big.compareTo(QUAD_MAX) > 0) {
                throw arg.getRuntime().newRangeError("bignum too big to convert into `quad int'");
            }
            return big.longValue();
        }
        return RubyNumeric.num2long(arg);
    }


    static {

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        BigInteger ulongValue = new BigInteger("1234567");
        writer.writeULong(ulongValue);
        
        InputStream iStream = oStream.create_input_stream();
        long ul = iStream.read_ulong();
        assertTrue(ul == ulongValue.longValue());
    }
    
    public void testWriteLongLong() {
        Buffer buf = new Buffer();
        OutputStream oStream = new OutputStream(buf);

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