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<?php
/**
* League.Uri (https://uri.thephpleague.com)
*
* (c) Ignace Nyamagana Butera <nyamsprod@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
declare(strict_types=1);
namespace League\Uri\IPv4;
use function bcadd;
use function bccomp;
use function bcdiv;
use function bcmod;
use function bcmul;
use function bcpow;
use function bcsub;
use function str_split;
final class BCMathCalculator implements Calculator
{
private const SCALE = 0;
private const CONVERSION_TABLE = [
'0' => '0', '1' => '1', '2' => '2', '3' => '3',
'4' => '4', '5' => '5', '6' => '6', '7' => '7',
'8' => '8', '9' => '9', 'a' => '10', 'b' => '11',
'c' => '12', 'd' => '13', 'e' => '14', 'f' => '15',
];
public function baseConvert(mixed $value, int $base): string
{
$value = (string) $value;
if (10 === $base) {
return $value;
}
$base = (string) $base;
$decimal = '0';
foreach (str_split($value) as $char) {
$decimal = bcadd($this->multiply($decimal, $base), self::CONVERSION_TABLE[$char], self::SCALE);
}
return $decimal;
}
public function pow(mixed $value, int $exponent): string
{
return bcpow((string) $value, (string) $exponent, self::SCALE);
}
public function compare(mixed $value1, $value2): int
{
return bccomp((string) $value1, (string) $value2, self::SCALE);
}
public function multiply(mixed $value1, $value2): string
{
return bcmul((string) $value1, (string) $value2, self::SCALE);
}
public function div(mixed $value, mixed $base): string
{
return bcdiv((string) $value, (string) $base, self::SCALE);
}
public function mod(mixed $value, mixed $base): string
{
return bcmod((string) $value, (string) $base, self::SCALE);
}
public function add(mixed $value1, mixed $value2): string
{
return bcadd((string) $value1, (string) $value2, self::SCALE);
}
public function sub(mixed $value1, mixed $value2): string
{
return bcsub((string) $value1, (string) $value2, self::SCALE);
}
}
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