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<?php
declare(strict_types=1);
namespace Brick\Math;
use Brick\Math\Exception\DivisionByZeroException;
use Brick\Math\Exception\MathException;
use Brick\Math\Exception\NumberFormatException;
use Brick\Math\Exception\RoundingNecessaryException;
/**
 * Common interface for arbitrary-precision rational numbers.
 *
 * @psalm-immutable
 */
abstract class BigNumber implements \Serializable, \JsonSerializable
{
    /**
     * The regular expression used to parse integer, decimal and rational numbers.
     */
    private const PARSE_REGEXP =
        '/^' .
            '(?<sign>[\-\+])?' .
            '(?:' .
                '(?:' .
                    '(?<integral>[0-9]+)?' .
                    '(?<point>\.)?' .
                    '(?<fractional>[0-9]+)?' .
                    '(?:[eE](?<exponent>[\-\+]?[0-9]+))?' .
                ')|(?:' .
                    '(?<numerator>[0-9]+)' .
                    '\/?' .
                    '(?<denominator>[0-9]+)' .
                ')' .
            ')' .
        '$/';
    /**
     * Creates a BigNumber of the given value.
     *
     * The concrete return type is dependent on the given value, with the following rules:
     *
     * - BigNumber instances are returned as is
     * - integer numbers are returned as BigInteger
 
 
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