Ds\Set::allocate

(PECL ds >= 1.0.0)

Ds\Set::allocate — Allocates enough memory for a required capacity

说明

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

Allocates enough memory for a required capacity.

参数

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.

返回值

没有返回值。

范例

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

<?php
$set = new \Ds\Set();
var_dump($set->capacity());

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

以上例程的输出类似于：

int(16)
int(128)