defender-security / lib / packages / Brick / Math / Internal / Calculator / BcMathCalculator.php

BcMathCalculator.php in Defender Security – Malware Scanner, Login Security & Firewall 6.3.0, at lib/packages/Brick/Math/Internal/Calculator/BcMathCalculator.php

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1	<?php
2
3	declare(strict_types=1);
4
5	namespace WP_DEFENDER_VENDOR\Brick\Math\Internal\Calculator;
6
7	use WP_DEFENDER_VENDOR\Brick\Math\Internal\Calculator;
8
9	/**
10	* Calculator implementation built around the bcmath library.
11	*
12	* @internal
13	*
14	* @psalm-immutable
15	*/
16	class BcMathCalculator extends Calculator
17	{
18	/**
19	* {@inheritdoc}
20	*/
21	public function add(string $a, string $b) : string
22	{
23	return \bcadd($a, $b, 0);
24	}
25
26	/**
27	* {@inheritdoc}
28	*/
29	public function sub(string $a, string $b) : string
30	{
31	return \bcsub($a, $b, 0);
32	}
33
34	/**
35	* {@inheritdoc}
36	*/
37	public function mul(string $a, string $b) : string
38	{
39	return \bcmul($a, $b, 0);
40	}
41
42	/**
43	* {@inheritdoc}
44	*
45	* @psalm-suppress InvalidNullableReturnType
46	* @psalm-suppress NullableReturnStatement
47	*/
48	public function divQ(string $a, string $b) : string
49	{
50	return \bcdiv($a, $b, 0);
51	}
52
53	/**
54	* {@inheritdoc}
55	*
56	* @psalm-suppress InvalidNullableReturnType
57	* @psalm-suppress NullableReturnStatement
58	*/
59	public function divR(string $a, string $b) : string
60	{
61	if (version_compare(PHP_VERSION, '7.2') >= 0) {
62	return \bcmod($a, $b, 0);
63	}
64
65	return \bcmod($a, $b);
66	}
67
68	/**
69	* {@inheritdoc}
70	*/
71	public function divQR(string $a, string $b) : array
72	{
73	$q = \bcdiv($a, $b, 0);
74
75	if (version_compare(PHP_VERSION, '7.2') >= 0) {
76	$r = \bcmod($a, $b, 0);
77	} else {
78	$r = \bcmod($a, $b);
79	}
80
81	assert($q !== null);
82	assert($r !== null);
83
84	return [$q, $r];
85	}
86
87	/**
88	* {@inheritdoc}
89	*/
90	public function pow(string $a, int $e) : string
91	{
92	return \bcpow($a, (string) $e, 0);
93	}
94
95	/**
96	* {@inheritdoc}
97	*
98	* @psalm-suppress InvalidNullableReturnType
99	* @psalm-suppress NullableReturnStatement
100	*/
101	public function modPow(string $base, string $exp, string $mod) : string
102	{
103	return \bcpowmod($base, $exp, $mod, 0);
104	}
105
106	/**
107	* {@inheritDoc}
108	*
109	* @psalm-suppress NullableReturnStatement
110	* @psalm-suppress InvalidNullableReturnType
111	*/
112	public function sqrt(string $n) : string
113	{
114	return \bcsqrt($n, 0);
115	}
116	}
117