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Ds\Queue::allocate

(PECL ds >= 1.0.0)

Ds\Queue::allocateAllocates enough memory for a required capacity.

Description

public void Ds\Queue::allocate ( int $capacity )

Ensures that enough memory is allocated for a required capacity. This removes the need to reallocate the internal as values are added.

Note:

Capacity will always be rounded up to the nearest power of 2.

Parameters

capacity

The number of values for which capacity should be allocated.

Note:

Capacity will stay the same if this value is less than or equal to the current capacity.

Note:

Capacity will always be rounded up to the nearest power of 2.

Return Values

No value is returned.

Examples

Example #1 Ds\Queue::allocate() example

<?php
$queue = new \Ds\Queue();
var_dump($queue->capacity());

$queue->allocate(100);
var_dump($queue->capacity());
?>

The above example will output something similar to:

int(8)
int(128)

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https://secure.php.net/manual/en/ds-queue.allocate.php