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/**
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/**
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 * Pure-PHP 64-bit BigInteger Engine
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 * Pure-PHP 64-bit BigInteger Engine
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 *
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 *
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 * PHP version 5 and 7
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 * PHP version 5 and 7
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 *
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 *
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 * @category  Math
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 * @package   BigInteger
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 * @author    Jim Wigginton <terrafrost@php.net>
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 * @author    Jim Wigginton <terrafrost@php.net>
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 * @copyright 2017 Jim Wigginton
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 * @copyright 2017 Jim Wigginton
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 * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
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 * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
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 * @link      http://pear.php.net/package/Math_BigInteger
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 * @link      http://pear.php.net/package/Math_BigInteger
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 */
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 */
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/**
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/**
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 * Pure-PHP 64-bit Engine.
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 * Pure-PHP 64-bit Engine.
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 *
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 *
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 * Uses 64-bit integers if int size is 8 bits
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 * Uses 64-bit integers if int size is 8 bits
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 *
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 *
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 * @package PHP
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 * @author  Jim Wigginton <terrafrost@php.net>
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 * @author  Jim Wigginton <terrafrost@php.net>
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 * @access  public
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 */
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 */
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class PHP64 extends PHP
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class PHP64 extends PHP
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{
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{
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    // Constants used by PHP.php
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    // Constants used by PHP.php
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    const BASE = 31;
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    const BASE = 31;
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     *
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     *
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     * {@internal Could return $this->subtract($x), but that's not as fast as what we do do.}
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     * {@internal Could return $this->subtract($x), but that's not as fast as what we do do.}
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     *
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     *
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     * @param PHP64 $y
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     * @param PHP64 $y
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     * @return int in case < 0 if $this is less than $y; > 0 if $this is greater than $y, and 0 if they are equal.
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     * @return int in case < 0 if $this is less than $y; > 0 if $this is greater than $y, and 0 if they are equal.
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     * @access public
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     * @see self::equals()
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     * @see self::equals()
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     */
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     */
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    public function compare(PHP64 $y)
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    public function compare(PHP64 $y)
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    {
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    {
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        return parent::compareHelper($this->value, $this->is_negative, $y->value, $y->is_negative);
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        return parent::compareHelper($this->value, $this->is_negative, $y->value, $y->is_negative);