Bitmask::getSetBitsCount() - Code Metrics - Inspection of "PHPUnit code coverage (#3)" - Aliance/Bitmask - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 217fbd...78d8b4 )

by Lesnykh

created 2017-01-10 09:36 UTC

Bitmask::getSetBitsCount() A

↳ Parent: Bitmask

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	4
ccs	2
cts	2
cp	1
rs	10
cc	1
eloc	2
nc	1
nop	0
crap	1

<?php
namespace Aliance\Bitmask;

/**
 * Simple bitmask implementation.
 * Supports only 63 bits (from 0 to 62) on x64 platforms.
 */
class Bitmask
{
    /**
     * @var int
     */
    const MAX_BIT = 62;

    /**
     * @var int
     */
    private $mask;

    /**
     * @param int $mask
     */
    public function __construct($mask = 0)
    {
        $this->setMask($mask);
    }

    /**
     * @param int $mask
     * @return $this
     */
    public static function create($mask = 0)
    {
        return new self($mask);
    }

    /**
     * @param int $bit
     * @return $this
     */
    public function setBit($bit)
    {
        return $this->addMask(1 << $this->checkBit($bit));
    }

    /**
     * @param int $mask
     * @return $this
     */
    public function addMask($mask)
    {
        $this->mask |= $mask;
        return $this;
    }

    /**
     * @param int $bit
     * @return int
     * @throws \InvalidArgumentException
     */
    private function checkBit($bit)
    {
        if ($bit > self::MAX_BIT) {
            throw new \InvalidArgumentException(sprintf(
                'Bit number %d is greater than possible limit %d.',
                $bit,
                self::MAX_BIT
            ));
        }
        return $bit;
    }

    /**
     * @param int $bit
     * @return $this
     */
    public function unsetBit($bit)
    {
        return $this->deleteMask(1 << $this->checkBit($bit));
    }

    /**
     * @param int $mask
     * @return $this
     */
    public function deleteMask($mask)
    {
        $this->mask &= ~$mask;
        return $this;
    }

    /**
     * @param int $bit
     * @return bool
     */
    public function issetBit($bit)
    {
        return (bool)($this->getMask() & (1 << $this->checkBit($bit)));
    }

    /**
     * @return int
     */
    public function getMask()
    {
        return $this->mask;
    }

    /**
     * @param int $mask
     * @return $this
     */
    public function setMask($mask)
    {
        $this->mask = (int)$mask;
        return $this;
    }

    /**
     * Return set bits count.
     * Actually, counts the number of 1 in binary representation of the decimal mask integer.
     * @return int
     */
    public function getSetBitsCount()
    {
        return substr_count(decbin($this->mask), '1');
    }
}


1		<?php
2		namespace Aliance\Bitmask;
3
4		/**
5		* Simple bitmask implementation.
6		* Supports only 63 bits (from 0 to 62) on x64 platforms.
7		*/
8		class Bitmask
9		{
10		/**
11		* @var int
12		*/
13		const MAX_BIT = 62;
14
15		/**
16		* @var int
17		*/
18		private $mask;
19
20		/**
21		* @param int $mask
22		*/
23	1	public function __construct($mask = 0)
24		{
25	1	$this->setMask($mask);
26	1	}
27
28		/**
29		* @param int $mask
30		* @return $this
31		*/
32	1	public static function create($mask = 0)
33		{
34	1	return new self($mask);
35		}
36
37		/**
38		* @param int $bit
39		* @return $this
40		*/
41	1	public function setBit($bit)
42		{
43	1	return $this->addMask(1 << $this->checkBit($bit));
44		}
45
46		/**
47		* @param int $mask
48		* @return $this
49		*/
50	1	public function addMask($mask)
51		{
52	1	$this->mask \|= $mask;
53	1	return $this;
54		}
55
56		/**
57		* @param int $bit
58		* @return int
59		* @throws \InvalidArgumentException
60		*/
61	1	private function checkBit($bit)
62		{
63	1	if ($bit > self::MAX_BIT) {
64	1	throw new \InvalidArgumentException(sprintf(
65	1	'Bit number %d is greater than possible limit %d.',
66	1	$bit,
67		self::MAX_BIT
68	1	));
69		}
70		return $bit;
71		}
72
73		/**
74		* @param int $bit
75		* @return $this
76		*/
77	1	public function unsetBit($bit)
78		{
79	1	return $this->deleteMask(1 << $this->checkBit($bit));
80		}
81
82		/**
83		* @param int $mask
84		* @return $this
85		*/
86	1	public function deleteMask($mask)
87		{
88	1	$this->mask &= ~$mask;
89	1	return $this;
90		}
91
92		/**
93		* @param int $bit
94		* @return bool
95		*/
96	3	public function issetBit($bit)
97		{
98	3	return (bool)($this->getMask() & (1 << $this->checkBit($bit)));
99		}
100
101		/**
102		* @return int
103		*/
104	1	public function getMask()
105		{
106	1	return $this->mask;
107		}
108
109		/**
110		* @param int $mask
111		* @return $this
112		*/
113	1	public function setMask($mask)
114		{
115	1	$this->mask = (int)$mask;
116	1	return $this;
117		}
118
119		/**
120		* Return set bits count.
121		* Actually, counts the number of 1 in binary representation of the decimal mask integer.
122		* @return int
123		*/
124	1	public function getSetBitsCount()
125		{
126	1	return substr_count(decbin($this->mask), '1');
127		}
128		}
129

Aliance / Bitmask

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Bitmask::getSetBitsCount() A

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