Ds\Vector::allocate

(PECL ds >= 1.0.0)

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

说明

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

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

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.

返回值

没有返回值。

范例

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

<?php
$vector = new \Ds\Vector();
var_dump($vector->capacity());

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

以上例程的输出类似于：

int(10)
int(100)