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<?php
namespace PhpOffice\PhpSpreadsheet\Calculation\MathTrig;
use PhpOffice\PhpSpreadsheet\Calculation\Exception;
use PhpOffice\PhpSpreadsheet\Calculation\Functions;
class Floor
{
private static function floorCheck1Arg(): void
{
$compatibility = Functions::getCompatibilityMode();
if ($compatibility === Functions::COMPATIBILITY_EXCEL) {
throw new Exception('Excel requires 2 arguments for FLOOR');
}
}
/**
* FLOOR.
*
* Rounds number down, toward zero, to the nearest multiple of significance.
*
* Excel Function:
* FLOOR(number[,significance])
*
* @param mixed $number Expect float. Number to round
* @param mixed $significance Expect float. Significance
*
* @return float|string Rounded Number, or a string containing an error
*/
public static function floor($number, $significance = null)
{
if ($significance === null) {
self::floorCheck1Arg();
}
try {
$number = Helpers::validateNumericNullBool($number);
$significance = Helpers::validateNumericNullSubstitution($significance, ($number < 0) ? -1 : 1);
} catch (Exception $e) {
return $e->getMessage();
}
return self::argumentsOk((float) $number, (float) $significance);
}
/**
* FLOOR.MATH.
*
* Round a number down to the nearest integer or to the nearest multiple of significance.
*
* Excel Function:
* FLOOR.MATH(number[,significance[,mode]])
*
* @param mixed $number Number to round
* @param mixed $significance Significance
* @param mixed $mode direction to round negative numbers
*
* @return float|string Rounded Number, or a string containing an error
*/
public static function math($number, $significance = null, $mode = 0)
{
try {
$number = Helpers::validateNumericNullBool($number);
$significance = Helpers::validateNumericNullSubstitution($significance, ($number < 0) ? -1 : 1);
$mode = Helpers::validateNumericNullSubstitution($mode, null);
} catch (Exception $e) {
return $e->getMessage();
}
return self::argsOk((float) $number, (float) $significance, (int) $mode);
}
/**
* FLOOR.PRECISE.
*
* Rounds number down, toward zero, to the nearest multiple of significance.
*
* Excel Function:
* FLOOR.PRECISE(number[,significance])
*
* @param float $number Number to round
* @param float $significance Significance
*
* @return float|string Rounded Number, or a string containing an error
*/
public static function precise($number, $significance = 1)
{
try {
$number = Helpers::validateNumericNullBool($number);
$significance = Helpers::validateNumericNullSubstitution($significance, null);
} catch (Exception $e) {
return $e->getMessage();
}
return self::argumentsOkPrecise((float) $number, (float) $significance);
}
/**
* Avoid Scrutinizer problems concerning complexity.
*
* @return float|string
*/
private static function argumentsOkPrecise(float $number, float $significance)
{
if ($significance == 0.0) {
return Functions::DIV0();
}
if ($number == 0.0) {
return 0.0;
}
return floor($number / abs($significance)) * abs($significance);
}
/**
* Avoid Scrutinizer complexity problems.
*
* @return float|string Rounded Number, or a string containing an error
*/
private static function argsOk(float $number, float $significance, int $mode)
{
if (!$significance) {
return Functions::DIV0();
}
if (!$number) {
return 0.0;
}
if (self::floorMathTest($number, $significance, $mode)) {
return ceil($number / $significance) * $significance;
}
return floor($number / $significance) * $significance;
}
/**
* Let FLOORMATH complexity pass Scrutinizer.
*/
private static function floorMathTest(float $number, float $significance, int $mode): bool
{
return Helpers::returnSign($significance) == -1 || (Helpers::returnSign($number) == -1 && !empty($mode));
}
/**
* Avoid Scrutinizer problems concerning complexity.
*
* @return float|string
*/
private static function argumentsOk(float $number, float $significance)
{
if ($significance == 0.0) {
return Functions::DIV0();
}
if ($number == 0.0) {
return 0.0;
}
if (Helpers::returnSign($significance) == 1) {
return floor($number / $significance) * $significance;
}
if (Helpers::returnSign($number) == -1 && Helpers::returnSign($significance) == -1) {
return floor($number / $significance) * $significance;
}
return Functions::NAN();
}
}