Ds\Set::allocate
(PECL ds >= 1.0.0)
Ds\Set::allocate — Allocates enough memory for a required capacity.
説明
public void Ds\Set::allocate
( int
$capacity
)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)
忘却曲線を使ってこの知識を確実に記憶に残す
