vendor/nesbot/carbon/src/Carbon/Traits/Difference.php

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<?php

/**
 * This file is part of the Carbon package.
 *
 * (c) Brian Nesbitt <brian@nesbot.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Carbon\Traits;

use Carbon\Carbon;
use Carbon\CarbonImmutable;
use Carbon\CarbonInterface;
use Carbon\CarbonInterval;
use Carbon\CarbonPeriod;
use Carbon\Translator;
use Closure;
use DateInterval;
use DateTimeInterface;
use ReturnTypeWillChange;

/**
 * Trait Difference.
 *
 * Depends on the following methods:
 *
 * @method bool lessThan($date)
 * @method static copy()
 * @method static resolveCarbon($date = null)
 * @method static Translator translator()
 */
trait Difference
{
    /**
     * @codeCoverageIgnore
     *
     * @param CarbonInterval $diff
     */
    protected static function fixNegativeMicroseconds(CarbonInterval $diff)
    {
        if ($diff->s !== 0 || $diff->i !== 0 || $diff->h !== 0 || $diff->d !== 0 || $diff->m !== 0 || $diff->y !== 0) {
            $diff->f = (round($diff->f * 1000000) + 1000000) / 1000000;
            $diff->s--;

            if ($diff->s < 0) {
                $diff->s += 60;
                $diff->i--;

                if ($diff->i < 0) {
                    $diff->i += 60;
                    $diff->h--;

                    if ($diff->h < 0) {
                        $diff->h += 24;
                        $diff->d--;

                        if ($diff->d < 0) {