/**
* Returns a copy of this `LocalDateTime` with the specified period added.
*
* @param integer $hours The hours to add, validated as an integer. May be negative.
* @param integer $minutes The minutes to add, validated as an integer. May be negative.
* @param integer $seconds The seconds to add, validated as an integer. May be negative.
* @param integer $nanos The nanos to add, validated as an integer. May be negative.
* @param integer $sign The sign, validated as an integer of value `1` to add or `-1` to subtract.
*
* @return LocalDateTime The combined result.
*/
private function plusWithOverflow($hours, $minutes, $seconds, $nanos, $sign)
{
$totDays = intdiv($hours, LocalTime::HOURS_PER_DAY) + intdiv($minutes, LocalTime::MINUTES_PER_DAY) + intdiv($seconds, LocalTime::SECONDS_PER_DAY);
$totDays *= $sign;
$totSeconds = $seconds % LocalTime::SECONDS_PER_DAY + $minutes % LocalTime::MINUTES_PER_DAY * LocalTime::SECONDS_PER_MINUTE + $hours % LocalTime::HOURS_PER_DAY * LocalTime::SECONDS_PER_HOUR;
$curSoD = $this->time->toSecondOfDay();
$totSeconds = $totSeconds * $sign + $curSoD;
$totNanos = $nanos * $sign + $this->time->getNano();
$totSeconds += Math::floorDiv($totNanos, LocalTime::NANOS_PER_SECOND);
$newNano = Math::floorMod($totNanos, LocalTime::NANOS_PER_SECOND);
$totDays += Math::floorDiv($totSeconds, LocalTime::SECONDS_PER_DAY);
$newSoD = Math::floorMod($totSeconds, LocalTime::SECONDS_PER_DAY);
$newTime = $newSoD === $curSoD ? $this->time : LocalTime::ofSecondOfDay($newSoD, $newNano);
return $this->with($this->date->plusDays($totDays), $newTime);
}
/**
* Returns a copy of this LocalDate with the specified period in months added.
*
* If the day-of-month is invalid for the resulting year and month,
* it will be changed to the last valid day of the month.
*
* @param integer $months
*
* @return LocalDate
*/
public function plusMonths($months)
{
$month = $this->month + $months - 1;
$yearDiff = Math::floorDiv($month, 12);
$month = Math::floorMod($month, 12) + 1;
$year = $this->year + $yearDiff;
return $this->resolvePreviousValid($year, $month, $this->day);
}
/**
* @dataProvider providerFloorDiv
*
* @param integer $a The dividend.
* @param integer $b The divisor.
* @param integer $expected The expected floor division result.
*/
public function testFloorDiv($a, $b, $expected)
{
$this->assertSame($expected, Math::floorDiv($a, $b));
}
/**
* Returns a copy of this YearMonth with the specified period in months added.
*
* @param integer $months
*
* @return YearMonth
*/
public function plusMonths($months)
{
$month = $this->month + $months - 1;
$yearDiff = Math::floorDiv($month, 12);
$month = Math::floorMod($month, 12) + 1;
$year = $this->year + $yearDiff;
return new YearMonth($year, $month);
}
/**
* Returns a copy of this LocalTime with the specified period in nanoseconds added.
*
* @param integer $nanos The seconds to add, may be negative.
*
* @return LocalTime A LocalTime based on this time with the nanoseconds added.
*/
public function plusNanos($nanos)
{
$nanos = Cast::toInteger($nanos);
if ($nanos === 0) {
return $this;
}
$divBase = Math::floorDiv($this->nano, LocalTime::NANOS_PER_SECOND);
$modBase = Math::floorMod($this->nano, LocalTime::NANOS_PER_SECOND);
$divPlus = Math::floorDiv($nanos, LocalTime::NANOS_PER_SECOND);
$modPlus = Math::floorMod($nanos, LocalTime::NANOS_PER_SECOND);
$diffSeconds = $divBase + $divPlus;
$nano = $modBase + $modPlus;
if ($nano >= LocalTime::NANOS_PER_SECOND) {
$nano -= LocalTime::NANOS_PER_SECOND;
$diffSeconds++;
}
return $this->withNano($nano)->plusSeconds($diffSeconds);
}