tablepress / libraries / vendor / PhpSpreadsheet / Calculation / MathTrig / Gcd.php

Gcd.php in TablePress – Tables in WordPress made easy 3.4, at libraries/vendor/PhpSpreadsheet/Calculation/MathTrig/Gcd.php

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1	<?php
2
3	namespace TablePress\PhpOffice\PhpSpreadsheet\Calculation\MathTrig;
4
5	use TablePress\PhpOffice\PhpSpreadsheet\Calculation\Exception;
6	use TablePress\PhpOffice\PhpSpreadsheet\Calculation\Functions;
7	use TablePress\PhpOffice\PhpSpreadsheet\Calculation\Information\ExcelError;
8
9	class Gcd
10	{
11	/**
12	* Recursively determine GCD.
13	*
14	* Returns the greatest common divisor of a series of numbers.
15	* The greatest common divisor is the largest integer that divides both
16	* number1 and number2 without a remainder.
17	*
18	* Excel Function:
19	* GCD(number1[,number2[, ...]])
20	* @param float\|int $a
21	* @param float\|int $b
22	* @return float\|int
23	*/
24	private static function evaluateGCD($a, $b)
25	{
26	return $b ? self::evaluateGCD($b, $a % $b) : $a;
27	}
28
29	/**
30	* GCD.
31	*
32	* Returns the greatest common divisor of a series of numbers.
33	* The greatest common divisor is the largest integer that divides both
34	* number1 and number2 without a remainder.
35	*
36	* Excel Function:
37	* GCD(number1[,number2[, ...]])
38	*
39	* @param mixed ...$args Data values
40	*
41	* @return float\|int\|string Greatest Common Divisor, or a string containing an error
42	*/
43	public static function evaluate(...$args)
44	{
45	try {
46	$arrayArgs = [];
47	foreach (Functions::flattenArray($args) as $value1) {
48	if ($value1 !== null) {
49	$value = Helpers::validateNumericNullSubstitution($value1, 1);
50	Helpers::validateNotNegative($value);
51	$arrayArgs[] = (int) $value;
52	}
53	}
54	} catch (Exception $e) {
55	return $e->getMessage();
56	}
57
58	if (count($arrayArgs) <= 0) {
59	return ExcelError::VALUE();
60	}
61	$gcd = (int) array_pop($arrayArgs);
62	do {
63	$gcd = self::evaluateGCD($gcd, (int) array_pop($arrayArgs));
64	} while (!empty($arrayArgs));
65
66	return $gcd;
67	}
68	}
69