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    The QuickHashIntSet class

    (PECL quickhash >= Unknown)

    はじめに

    This class wraps around a set containing integer numbers.

    Sets can also be iterated over with foreach as the Iterator interface is implemented as well. The order of which elements are returned in is not guaranteed.

    クラス概要

    class QuickHashIntSet {
    /* 定数 */
    const int CHECK_FOR_DUPES = 1;
    const int DO_NOT_USE_ZEND_ALLOC = 2;
    const int HASHER_NO_HASH = 256;
    const int HASHER_JENKINS1 = 512;
    const int HASHER_JENKINS2 = 1024;
    /* メソッド */
    public add(int $key): bool
    public __construct(int $size, int $options = ?)
    public delete(int $key): bool
    public exists(int $key): bool
    publicgetSize(): int
    public static loadFromFile(string $filename, int $size = ?, int $options = ?): QuickHashIntSet
    public static loadFromString(string $contents, int $size = ?, int $options = ?): QuickHashIntSet
    public saveToFile(string $filename): void
    public saveToString(): string
    }

    定義済み定数

    QuickHashIntSet::CHECK_FOR_DUPES

    If enabled, adding duplicate elements to a set (through either QuickHashIntSet::add() or QuickHashIntSet::loadFromFile()) will result in those elements to be dropped from the set. This will take up extra time, so only used when it is required.

    QuickHashIntSet::DO_NOT_USE_ZEND_ALLOC

    Disables the use of PHP's internal memory manager for internal set structures. With this option enabled, internal allocations will not count towards the memory_limit settings.

    QuickHashIntSet::HASHER_NO_HASH

    Selects to not use a hashing function, but merely use a modulo to find the bucket list index. This is not faster than normal hashing, and gives more collisions.

    QuickHashIntSet::HASHER_JENKINS1

    This is the default hashing function to turn the integer hashes into bucket list indexes.

    QuickHashIntSet::HASHER_JENKINS2

    Selects a variant hashing algorithm.

    目次

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