Boost Unordered Translation (zh_Hans)/Doc / Modules / Root / Pages / Reference / Concurrent Flat Set (adoc) — Chinese (Simplified Han script) @ Boost-Weblate: Even though it acts as a container, `boost::concurrent_flat

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Even though it acts as a container, `boost::concurrent_flat_set` does not model the standard C++ https://en.cppreference.com/w/cpp/named_req/Container[Container^] concept. In particular, iterators and associated operations (`begin`, `end`, etc.) are not provided. Element access is done through user-provided _visitation functions_ that are passed to `concurrent_flat_set` operations where they are executed internally in a controlled fashion. Such visitation-based API allows for low-contention concurrent usage scenarios.

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Key	English	Chinese (Simplified Han script)
	[#concurrent_flat_set]	[#concurrent_flat_set]
	Class Template concurrent_flat_set	类模板 concurrent++_++flat++_++set
	:idprefix: concurrent_flat_set_	:idprefix: concurrent_flat_set_
	`boost::concurrent_flat_set` — A hash table that stores unique values and allows for concurrent element insertion, erasure, lookup and access without external synchronization mechanisms.	`boost::concurrent++_++flat++_++set` —— 一种存储唯一值的哈希表，它支持并发的元素插入、删除、查找及访问操作，且无需外部同步机制。
	Even though it acts as a container, `boost::concurrent_flat_set` does not model the standard C++ https://en.cppreference.com/w/cpp/named_req/Container[Container^] concept. In particular, iterators and associated operations (`begin`, `end`, etc.) are not provided. Element access is done through user-provided _visitation functions_ that are passed to `concurrent_flat_set` operations where they are executed internally in a controlled fashion. Such visitation-based API allows for low-contention concurrent usage scenarios.	尽管 `boost::concurrent++_++flat++_++set` 具备容器特性，但它并不符合 C{plus}{plus}标准中的 https://en.cppreference.com/w/cpp/named_req/Container[容器] 概念。具体而言，该容器未提供迭代器及相关操作（如 `begin` 、 `end` 等）。元素访问通过用户提供的__访问函数__实现，这些函数被传递至 `concurrent++_++flat++_++set` 操作中，并在其内部以受控方式执行。这种基于访问机制的 API 设计能够有效支持低争用的并发应用场景。
	The internal data structure of `boost::concurrent_flat_set` is similar to that of `boost::unordered_flat_set`. As a result of its using open-addressing techniques, `value_type` must be move-constructible and pointer stability is not kept under rehashing.	`boost::concurrent++_++flat++_++set` 的内部数据结构类似于 `boost::unordered++_++flat++_++set` 。由于其采用开放寻址技术， `value++_++type` 必须满足可移动构造要求，且在重哈希过程中无法保持指针稳定性。
	Synopsis	概要
:279	---	---
	Description	描述
	Template Parameters	模板参数
	_Key_	_键_
	`Key` must be https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^] into the container	Key 必须满足
	and https://en.cppreference.com/w/cpp/named_req/Erasable[Erasable^] from the container.	https://en.cppreference.com/w/cpp/named_req/MoveInsertable[可移动插入] 到容器中的要求，且需满足从容器中 https://en.cppreference.com/w/cpp/named_req/Erasable[可擦除] 的要求。
	_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`.	一种为`Key`提供哈希功能的一元函数对象类型。它接受单个`Key`类型参数，并返回`std::size_t`类型的值。
	_Pred_	_Pred_
	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`.	一种二元函数对象，用于在Key类型的值上构建等价关系。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 table's value type.	值类型与该表的值类型相同的分配器。
	`std::allocator_traits<Allocator>::pointer` and `std::allocator_traits<Allocator>::const_pointer` must be convertible to/from `value_type` and `const value_type`, respectively.	`std::allocator_traits<allocator>::pointer` 与 `std::allocator_traits<allocator>::const_pointer` 必须分别可与 `value_type` 和 `const value_type` 相互转换。</allocator></allocator>

	English	Chinese (Simplified Han script)	Actions
	If an element `x` exists with key equivalent to `k`, invokes `f` with a const reference to `x`.	若存在键与 `k` 等价的元素 `x`，则以指向 `x` 的常量引用调用函数 `f`。
	Returns:;; The number of elements visited.	返回值：;; 访问到的元素总数。
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued.	前置要求：;; `value_type` 满足可移动插入要求。返回值：;; 成功插入元素时返回 `true`。并发特性：;; 若触发重哈希，则会阻塞当前对象 `*this`。注意：;; 若执行重哈希，将使指向元素的指针和引用失效。
	``` key_equal key_eq() const; ```	``` key_equal key_eq() const; ```
	Returns:;; The table's key equality predicate.	返回值：;; 表的键相等性断言。
	Set Operations	集合操作
	count	count
	```c++ size_type count(const key_type& k) const; template<class K> size_type count(const K& k) const; ```	```c++ size_type count(const key_type& k) const; template<class k=""> size_type count(const K& k) const; ```</class>
	reserve	保留
	__iter-value-type__	_iter-value-type_
	```c++ template<class Key, class Hash, class Pred, class Alloc> bool operator==(const concurrent_flat_set<Key, Hash, Pred, Alloc>& x, const concurrent_flat_set<Key, Hash, Pred, Alloc>& y); ```	```c++ template<class key,="" class="" hash,="" pred,="" alloc=""> bool operator==(const concurrent_flat_set<key, hash,="" pred,="" alloc="">& x, const concurrent_flat_set<key, hash,="" pred,="" alloc="">& y); ```</key,></key,></class>
	Loading an concurrent_flat_set from an archive	从归档加载 concurrent++_++flat++_++set
	[#concurrent_flat_set]	[#concurrent_flat_set]
	Class Template concurrent_flat_set	类模板 concurrent++_++flat++_++set
	:idprefix: concurrent_flat_set_	:idprefix: concurrent_flat_set_
	Even though it acts as a container, `boost::concurrent_flat_set` does not model the standard C++ https://en.cppreference.com/w/cpp/named_req/Container[Container^] concept. In particular, iterators and associated operations (`begin`, `end`, etc.) are not provided. Element access is done through user-provided _visitation functions_ that are passed to `concurrent_flat_set` operations where they are executed internally in a controlled fashion. Such visitation-based API allows for low-contention concurrent usage scenarios.	尽管 `boost::concurrent++_++flat++_++set` 具备容器特性，但它并不符合 C{plus}{plus}标准中的 https://en.cppreference.com/w/cpp/named_req/Container[容器] 概念。具体而言，该容器未提供迭代器及相关操作（如 `begin` 、 `end` 等）。元素访问通过用户提供的__访问函数__实现，这些函数被传递至 `concurrent++_++flat++_++set` 操作中，并在其内部以受控方式执行。这种基于访问机制的 API 设计能够有效支持低争用的并发应用场景。
	_Hash_	_Hash_
	_Pred_	_Pred_
	Transparent insert_or_[c]visit	透明 insert++_++or++_[++c++]++visit
	Swaps the contents of the table with the parameter.	交换当前表与参数表的内容。
	```c++ template<class K, class F> bool insert_or_visit(K&& k, F f); template<class K, class F> bool insert_or_cvisit(K&& k, F f); ```	```c++ template<class k,="" class="" f=""> bool insert_or_visit(K&& k, F f); template<class k,="" class="" f=""> bool insert_or_cvisit(K&& k, F f); ```</class></class>
	Size and Capacity	大小与容量
	```c++ [[nodiscard]] bool empty() const noexcept; ```	```c++ [[nodiscard]] bool empty() const noexcept; ```
	Returns:;; `size() == 0`	返回值：;; `size() == 0`
	size	大小
	emplace	原地构造
	Insert Iterator Range	迭代器范围插入
	```c++ template<class InputIterator> size_type insert(InputIterator first, InputIterator last); ```	```c++ template<class inputiterator=""> size_type insert(InputIterator first, InputIterator last); ```</class>
	```c++ template<class ExecutionPolicy, class F> void erase_if(ExecutionPolicy&& policy, F f); ```	```c++ template<class executionpolicy,="" class="" f=""> void erase_if(ExecutionPolicy&& policy, F f); ```</class>
	_Key_	_键_

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Even though it acts as a container, `boost::concurrent_flat_set` does not model the standard C++ https://en.cppreference.com/w/cpp/named_req/Container[Container^] concept. In particular, iterators and associated operations (`begin`, `end`, etc.) are not provided. Element access is done through user-provided _visitation functions_ that are passed to `concurrent_flat_set` operations where they are executed internally in a controlled fashion. Such visitation-based API allows for low-contention concurrent usage scenarios.

Chinese (Simplified Han script) 404 characters editedCurrent translationState: Translated

Even though it acts as a container, `boost::concurrent_flat_set` does not model the standard C++ https://en.cppreference.com/w/cpp/named_req/Container[Container^] concept. In particular, iterators and associated operations (尽管 `boost::concurrent++_++flat++_++set` 具备容器特性，但它并不符合 C{plus}{plus}标准中的 https://en.cppreference.com/w/cpp/named_req/Container[容器] 概念。具体而言，该容器未提供迭代器及相关操作（如 `begin`, 、 `end`, etc.) are not provided. Element access is done through user-provided _visitation functions_ that are passed to `concurrent_flat_set` operations where they are executed internally in a controlled fashion. Such visitation-based API allows for low-contention concurrent usage scenarios. 等）。元素访问通过用户提供的__访问函数__实现，这些函数被传递至 `concurrent++_++flat++_++set` 操作中，并在其内部以受控方式执行。这种基于访问机制的 API 设计能够有效支持低争用的并发应用场景。

06/05/2026

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English

Even though it acts as a container, `boost::concurrent_flat_set` does not model the standard C++ https://en.cppreference.com/w/cpp/named_req/Container[Container^] concept. In particular, iterators and associated operations (`begin`, `end`, etc.) are not provided. Element access is done through user-provided _visitation functions_ that are passed to `concurrent_flat_set` operations where they are executed internally in a controlled fashion. Such visitation-based API allows for low-contention concurrent usage scenarios.

Chinese (Simplified Han script) 523 characters editedPrevious translationState: Needs editing (Needs rewriting)

Even though it acts as a container, `boost::concurrent_flat_set` does not model the standard C++ https://en.cppreference.com/w/cpp/named_req/Container[Container^] concept. In particular, iterators and associated operations (`begin`, `end`, etc.) are not provided. Element access is done through user-provided _visitation functions_ that are passed to `concurrent_flat_set` operations where they are executed internally in a controlled fashion. Such visitation-based API allows for low-contention concurrent usage scenarios.

06/05/2026

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:10

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doc/modules/ROOT/pages/reference/concurrent_flat_set_zh_Hans.adoc, string 5

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