Ds\Sequence::allocate
(PECL ds >= 1.0.0)
Ds\Sequence::allocate — Allocates enough memory for a required capacity.
説明
abstract public void Ds\Sequence::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.
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.
返り値
値を返しません。
例
例1 Ds\Sequence::allocate() example
<?php
$sequence = new \Ds\Vector();
var_dump($sequence->capacity());
$vector->allocate(100);
var_dump($sequence->capacity());
?>
上の例の出力は、 たとえば以下のようになります。
int(10) int(100)
忘却曲線を使ってこの知識を確実に記憶に残す
