Boost Unordered Translation (zh_Hans)/Doc / Modules / Root / Pages / Reference / Unordered Set (adoc) — Chinese (Simplified Han script) @ Boost-Weblate: `boost::unordered_set` — An unordered associative container that stores unique values.

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Key	English	Chinese (Simplified Han script)
	Class Template unordered_set	类模板 unordered_set
	:idprefix: unordered_set_	:idprefix: unordered_set_
	`boost::unordered_set` — An unordered associative container that stores unique values.	`boost::unordered++_++set` — 一种用于存储唯一值的无序关联容器。
	Synopsis	概要
:239	---	---
	Description	描述
	Template Parameters	模板参数
	_Key_	_键_
	`Key` must be https://en.cppreference.com/w/cpp/named_req/Erasable[Erasable^] from the container (i.e. `allocator_traits` can destroy it).	`Key` 必须可以从容器中 https://en.cppreference.com/w/cpp/named_req/Erasable[Erasable^]（即 `allocator_traits` 能够销毁它）。
	_Hash_	_Hash_
	A unary function object type that acts a hash function for a `Key`. It takes a single argument of type `Key` and returns a value of type `std::size_t`.	一个一元函数对象类型，用作 `Key` 的哈希函数。它接受一个 `Key` 类型的参数并返回 `std::size_t` 类型的值。
	_Pred_	_Pred_
	A binary function object that implements an equivalence relation on values of type `Key`. A binary function object that induces an equivalence relation on values of type `Key`. It takes two arguments of type `Key` and returns a value of type bool.	一个二元函数对象，用于实现 `Key` 类型值上的等价关系。该二元函数对象在 `Key` 类型值上诱导出等价关系。它接受两个 `Key` 类型的参数并返回一个 `bool` 类型的值。
	_Allocator_	_Allocator_
	An allocator whose value type is the same as the container's value type.	一个分配器，其值类型与容器的值类型相同。
	Allocators using https://en.cppreference.com/w/cpp/named_req/Allocator#Fancy_pointers[fancy pointers] are supported.	支持使用 https://en.cppreference.com/w/cpp/named_req/Allocator#Fancy_pointers[异形指针] 的分配器。
	The elements are organized into buckets. Keys with the same hash code are stored in the same bucket.	元素被组织到桶中。具有相同哈希码的键存储在同一桶中。
	The number of buckets can be automatically increased by a call to insert, or as the result of calling rehash.	桶的数量可以通过调用 insert 自动增加，或者作为调用 rehash 的结果。

	English	Chinese (Simplified Han script)	Actions
	clear	清空
	```c++ void clear() noexcept; ```	```c++ void clear() noexcept; ```
	Erases all elements in the container.	擦除容器中的所有元素。
	count	count
	Returns:;; The number of elements with key equivalent to `k`. Notes:;; The `template<class K>` overload only participates in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. The library assumes that `Hash` is callable with both `K` and `Key` and that `Pred` is transparent. This enables heterogeneous lookup which avoids the cost of instantiating an instance of the `Key` type.	返回：键与 `k` 等价的元素数量。说明：`template<class k="">` 重载仅在 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef 时参与重载决议。库假定 `Hash` 可同时以 `K` 和 `Key` 调用，且 `Pred` 是透明的。这实现了异构查找，从而避免了实例化 `Key` 类型对象的开销。</class>
	Returns:;; A boolean indicating whether or not there is an element with key equal to `key` in the container Notes:;; The `template<class K>` overload only participates in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. The library assumes that `Hash` is callable with both `K` and `Key` and that `Pred` is transparent. This enables heterogeneous lookup which avoids the cost of instantiating an instance of the `Key` type.	返回：一个布尔值，指示容器中是否存在键等于 `key` 的元素。说明：`template<class k="">` 重载仅在 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef 时参与重载决议。库假定 `Hash` 可同时以 `K` 和 `Key` 调用，且 `Pred` 是透明的。这实现了异构查找，从而避免了实例化 `Key` 类型对象的开销。</class>
	equal_range	equal++_++range
	Returns:;; A range containing all elements with key equivalent to `k`. If the container doesn't contain any such elements, returns `std::make_pair(b.end(), b.end())`. Notes:;; The `template<class K>` overloads only participate in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. The library assumes that `Hash` is callable with both `K` and `Key` and that `Pred` is transparent. This enables heterogeneous lookup which avoids the cost of instantiating an instance of the `Key` type.	返回：包含所有键与 `k` 等价的元素的范围。若容器中不包含任何此类元素，则返回 `std::make_pair(b.end(), b.end())`。说明：`template<class k="">` 重载仅在 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef 时参与重载决议。库假定 `Hash` 可同时以 `K` 和 `Key` 调用，且 `Pred` 是透明的。这实现了异构查找，从而避免了实例化 `Key` 类型对象的开销。</class>
	```c++ local_iterator begin(size_type n); const_local_iterator begin(size_type n) const; ```	```c++ local_iterator begin(size_type n); const_local_iterator begin(size_type n) const; ```
	operator	operator
	```c++ template<class Key, class Hash, class Pred, class Alloc> bool operator!=(const unordered_set<Key, Hash, Pred, Alloc>& x, const unordered_set<Key, Hash, Pred, Alloc>& y); ```	```c++ template<class key,="" class="" hash,="" pred,="" alloc=""> bool operator!=(const unordered_set<key, hash,="" pred,="" alloc="">& x, const unordered_set<key, hash,="" pred,="" alloc="">& y); ```</key,></key,></class>
	Return `false` if `x.size() == y.size()` and for every element in `x`, there is an element in `y` with the same key, with an equal value (using `operator==` to compare the value types).	如果 `x.size() == y.size()` 且对于 `x` 中的每个元素，在 `y` 中均存在一个具有相同键且值相等（使用 `operator==` 比较值类型）的元素，则返回 `false`。
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^] into the container and https://en.cppreference.com/w/cpp/named_req/CopyAssignable[CopyAssignable^].	要求：`value_type` 需满足对容器而言的 https://en.cppreference.com/w/cpp/named_req/CopyInsertable[可复制插入^] 要求和 https://en.cppreference.com/w/cpp/named_req/CopyAssignable[可复制赋值^] 要求。
	Iterators	迭代器
	:idprefix: unordered_set_	:idprefix: unordered_set_
	`boost::unordered_set` — An unordered associative container that stores unique values.	`boost::unordered++_++set` — 一种用于存储唯一值的无序关联容器。
	Synopsis	概要
	Description	描述
	Template Parameters	模板参数
	_Key_	_键_
	`Key` must be https://en.cppreference.com/w/cpp/named_req/Erasable[Erasable^] from the container (i.e. `allocator_traits` can destroy it).	`Key` 必须可以从容器中 https://en.cppreference.com/w/cpp/named_req/Erasable[Erasable^]（即 `allocator_traits` 能够销毁它）。
	_Hash_	_Hash_
	A unary function object type that acts a hash function for a `Key`. It takes a single argument of type `Key` and returns a value of type `std::size_t`.	一个一元函数对象类型，用作 `Key` 的哈希函数。它接受一个 `Key` 类型的参数并返回 `std::size_t` 类型的值。
	_Pred_	_Pred_
	```c++ iterator begin() noexcept; const_iterator begin() const noexcept; ```	```c++ iterator begin() noexcept; const_iterator begin() const noexcept; ```
	Returns:;; An iterator referring to the first element of the container, or if the container is empty the past-the-end value for the container.	返回：指向容器第一个元素的迭代器，若容器为空则返回容器尾后迭代器。
	```c++ iterator end() noexcept; const_iterator end() const noexcept; ```	```c++ iterator end() noexcept; const_iterator end() const noexcept; ```
	Returns:;; An iterator which refers to the past-the-end value for the container.	返回：指向容器尾后位置的迭代器。
	```c++ const_iterator cbegin() const noexcept; ```	```c++ const_iterator cbegin() const noexcept; ```
	A binary function object that implements an equivalence relation on values of type `Key`. A binary function object that induces an equivalence relation on values of type `Key`. It takes two arguments of type `Key` and returns a value of type bool.	一个二元函数对象，用于实现 `Key` 类型值上的等价关系。该二元函数对象在 `Key` 类型值上诱导出等价关系。它接受两个 `Key` 类型的参数并返回一个 `bool` 类型的值。

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