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<?php /** * This file is part of the ramsey/uuid library * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. * * @copyright Copyright (c) Ben Ramsey <[email protected]> * @license http://opensource.org/licenses/MIT MIT */ declare(strict_types=1); namespace Ramsey\Uuid; /** * Provides binary math utilities */ class BinaryUtils { /** * Applies the RFC 4122 variant field to the 16-bit clock sequence * * @link http://tools.ietf.org/html/rfc4122#section-4.1.1 RFC 4122, § 4.1.1: Variant * * @param int $clockSeq The 16-bit clock sequence value before the RFC 4122 * variant is applied * * @return int The 16-bit clock sequence multiplexed with the UUID variant * * @psalm-pure */ public static function applyVariant(int $clockSeq): int { $clockSeq = $clockSeq & 0x3fff; $clockSeq |= 0x8000; return $clockSeq; } /** * Applies the RFC 4122 version number to the 16-bit `time_hi_and_version` field * * @link http://tools.ietf.org/html/rfc4122#section-4.1.3 RFC 4122, § 4.1.3: Version * * @param int $timeHi The value of the 16-bit `time_hi_and_version` field * before the RFC 4122 version is applied * @param int $version The RFC 4122 version to apply to the `time_hi` field * * @return int The 16-bit time_hi field of the timestamp multiplexed with * the UUID version number * * @psalm-pure */ public static function applyVersion(int $timeHi, int $version): int { $timeHi = $timeHi & 0x0fff; $timeHi |= $version << 12; return $timeHi; } }