SquaredCapacity::square() - Code Metrics - MBHFramework/structures - Measure and Improve Code Quality continuously with Scrutinizer

SquaredCapacity::square() A
last analyzed 2018-09-26 02:10 UTC

↳ Parent: SquaredCapacity

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	1
nc	1
nop	1
dl	0
loc	3
rs	10
c	0
b	0
f	0

<?php namespace Mbh\Traits;

/**
 * MBHFramework
 *
 * @link      https://github.com/MBHFramework/mbh-framework
 * @copyright Copyright (c) 2017 Ulises Jeremias Cornejo Fandos
 * @license   https://github.com/MBHFramework/mbh-framework/blob/master/LICENSE (MIT License)
 */

/**
 * Common to structures that require a capacity which is a power of two.
 */
trait SquaredCapacity
{
    use Capacity;

    /**
     * @inheritDoc
     */
    protected $capacity = self::MIN_CAPACITY;

    /**
     * Rounds an integer to the next power of two if not already a power of two.
     *
     * @param int $capacity
     *
     * @return int
     */
    private function square(int $capacity): int
    {
        return pow(2, ceil(log($capacity, 2)));
    }

    /**
     * Ensures that enough memory is allocated for a specified capacity. This
     * potentially reduces the number of reallocations as the size increases.
     *
     * @param int $capacity The number of values for which capacity should be
     *                      allocated. Capacity will stay the same if this value
     *                      is less than or equal to the current capacity.
     */
    public function allocate(int $capacity)
    {
        $this->capacity = max($this->square($capacity), $this->capacity);
    }

    /**
     * Called when capacity should be increased to accommodate new values.
     */
    protected function increaseCapacity()
    {
        $this->capacity = $this->square(max($this->count() + 1, $this->capacity * $this->getGrowthFactor()));
    }

    /**
     * Gets the size of the array.
     *
     * @return int
     */
    abstract protected function count(): int;
}


1			<?php namespace Mbh\Traits;
2
3			/**
4			* MBHFramework
5			*
6			* @link https://github.com/MBHFramework/mbh-framework
7			* @copyright Copyright (c) 2017 Ulises Jeremias Cornejo Fandos
8			* @license https://github.com/MBHFramework/mbh-framework/blob/master/LICENSE (MIT License)
9			*/
10
11			/**
12			* Common to structures that require a capacity which is a power of two.
13			*/
14			trait SquaredCapacity
15			{
16			use Capacity;
17
18			/**
19			* @inheritDoc
20			*/
21			protected $capacity = self::MIN_CAPACITY;
22
23			/**
24			* Rounds an integer to the next power of two if not already a power of two.
25			*
26			* @param int $capacity
27			*
28			* @return int
29			*/
30			private function square(int $capacity): int
31			{
32			return pow(2, ceil(log($capacity, 2)));
33			}
34
35			/**
36			* Ensures that enough memory is allocated for a specified capacity. This
37			* potentially reduces the number of reallocations as the size increases.
38			*
39			* @param int $capacity The number of values for which capacity should be
40			* allocated. Capacity will stay the same if this value
41			* is less than or equal to the current capacity.
42			*/
43			public function allocate(int $capacity)
44			{
45			$this->capacity = max($this->square($capacity), $this->capacity);
46			}
47
48			/**
49			* Called when capacity should be increased to accommodate new values.
50			*/
51			protected function increaseCapacity()
52			{
53			$this->capacity = $this->square(max($this->count() + 1, $this->capacity * $this->getGrowthFactor()));
54			}
55
56			/**
57			* Gets the size of the array.
58			*
59			* @return int
60			*/
61			abstract protected function count(): int;
62			}
63

MBHFramework / structures

SquaredCapacity::square() A last analyzed 2018-09-26 02:10 UTC

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SquaredCapacity::square() A
last analyzed 2018-09-26 02:10 UTC