Php/docs/ds-set.allocate

• PHP Manual
• Set
• Allocates enough memory for a required capacity

Ds\Set::allocate

(PECL ds >= 1.0.0)

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

説明

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

Allocates enough memory for a required capacity.

パラメータ

capacity

The number of values for which capacity should be allocated.

注意:

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

注意:

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

返り値

値を返しません。

例

例1 Ds\Set::allocate() example

<?php$set = new \Ds\Set();var_dump($set->capacity());$set->allocate(100);var_dump($set->capacity());?>

上の例の出力は、 たとえば以下のようになります。

int(16)
int(128)