Boost Unordered Translation (zh_Hans)/Doc / Modules / Root / Pages / Reference / Concurrent Flat Set (adoc) — Chinese (Simplified Han script) @ Boost-Weblate: Effects:;; Does nothing, as the user is not allowed to …

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Key	English	Chinese (Simplified Han script)
	bucket_count	bucket_count
	```c++ size_type bucket_count() const noexcept; ```	```c++ size_type bucket_count() const noexcept; ```
	Returns:;; The size of the bucket array.	返回值：;; 哈希桶数组的大小。
:1391	---	---
	Hash Policy	哈希策略
	load_factor	负载因子
	```c++ float load_factor() const noexcept; ```	```c++ float load_factor() const noexcept; ```
	Returns:;; `static_cast<float>(size())/static_cast<float>(bucket_count())`, or `0` if `bucket_count() == 0`.	返回值：;; `static_cast<float>(size()) / static_cast<float>(bucket_count())`；若`bucket_count() == 0`，则返回`0`。</float></float>
:1403	---	---
	max_load_factor	max_load_factor
	```c++ float max_load_factor() const noexcept; ```	```c++ float max_load_factor() const noexcept; ```
	Returns:;; Returns the table's maximum load factor.	返回值：;; 返回哈希表的最大负载因子。
:1414	---	---
	Set max_load_factor	设置最大负载因子
	```c++ void max_load_factor(float z); ```	```c++ void max_load_factor(float z); ```
	Effects:;; Does nothing, as the user is not allowed to change this parameter. Kept for compatibility with `boost::unordered_set`.	效果：;; 不执行任何操作，因为不允许用户修改此参数。保留该函数是为了与 `boost::unordered_set` 保持兼容。
:1424	---	---
	max_load	max_load（最大负载）
	```c++ size_type max_load() const noexcept; ```	```c++ size_type max_load() const noexcept; ```
	Returns:;; The maximum number of elements the table can hold without rehashing, assuming that no further elements will be erased. Note:;; After construction, rehash or clearance, the table's maximum load is at least `max_load_factor() * bucket_count()`. This number may decrease on erasure under high-load conditions. + + In the presence of concurrent insertion operations, the value returned may not accurately reflect the true state of the table right after execution.	返回值：;; 哈希表在不进行重哈希的前提下可容纳的最大元素数量（假设不会再删除任何元素）。备注：;; 构造完成、重哈希或清空后，哈希表的最大负载至少为 `max_load_factor() * bucket_count()`。在高负载条件下执行删除操作后，该数值可能会降低。在存在并发插入操作时，返回的值可能无法准确反映执行后哈希表的真实状态。
:1441	---	---
	rehash	重哈希
	```c++ void rehash(size_type n); ```	```c++ void rehash(size_type n); ```
	Changes if necessary the size of the bucket array so that there are at least `n` buckets, and so that the load factor is less than or equal to the maximum load factor. When applicable, this will either grow or shrink the `bucket_count()` associated with the table.	效果：;; 必要时调整哈希桶数组的大小，使桶数量至少为 `n`，且负载因子小于等于最大负载因子。适用情况下，该操作会增大或缩小哈希表的桶数量（`bucket_count()`）。
	When `size() == 0`, `rehash(0)` will deallocate the underlying buckets array.	当 `size() == 0` 时，`rehash(0)` 会释放底层的哈希桶数组内存。
:1452	Invalidates pointers and references to elements, and changes the order of elements.	会使指向元素的指针和引用失效，并改变元素的存储顺序。
	Throws:;; The function has no effect if an exception is thrown, unless it is thrown by the table's hash function or comparison function. Concurrency:;; Blocking on `*this`. ---	抛出：;; 若抛出异常，函数无任何效果（哈希函数或比较函数抛出的异常除外）。并发：;; 阻塞`*this`。 ---
	reserve	保留
	```c++ void reserve(size_type n); ```	```c++ void reserve(size_type n); ```
	Equivalent to `a.rehash(ceil(n / a.max_load_factor()))`.	等价于 `a.rehash(ceil(n / a.max_load_factor()))`。
	Similar to `rehash`, this function can be used to grow or shrink the number of buckets in the table.	与 `rehash` 功能类似，该函数可用于增加或减少哈希表中的桶数量。

	English	Chinese (Simplified Han script)	Actions
	Observers	观察器
	get_allocator	get_allocator
	``` allocator_type get_allocator() const noexcept; ```	``` allocator_type get_allocator() const noexcept; ```
	Returns:;; The number of elements with key equivalent to `k` (0 or 1). 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. + + In the presence of concurrent insertion operations, the value returned may not accurately reflect the true state of the table right after execution.	返回值：;; 键与`k`等价的元素数量（0 或 1）。备注：;; `template<class k="">` 重载仅当 `Hash::is_transparent` 和 `Pred::is_transparent` 为合法成员类型别名时才参与重载决议。标准库假定 `Hash` 可同时接受 `K` 与 `Key` 类型调用，且 `Pred` 是透明的。这实现了异构查找，避免了实例化 `Key` 类型对象的开销。在存在并发插入操作时，返回的值可能无法准确反映执行后表的真实状态。</class>
	bucket_count	bucket_count
	```c++ size_type bucket_count() const noexcept; ```	```c++ size_type bucket_count() const noexcept; ```
	Returns:;; The size of the bucket array.	返回值：;; 哈希桶数组的大小。
	Hash Policy	哈希策略
	load_factor	负载因子
	```c++ float load_factor() const noexcept; ```	```c++ float load_factor() const noexcept; ```
	Returns:;; `static_cast<float>(size())/static_cast<float>(bucket_count())`, or `0` if `bucket_count() == 0`.	返回值：;; `static_cast<float>(size()) / static_cast<float>(bucket_count())`；若`bucket_count() == 0`，则返回`0`。</float></float>
	```c++ float max_load_factor() const noexcept; ```	```c++ float max_load_factor() const noexcept; ```
	Returns:;; Returns the table's maximum load factor.	返回值：;; 返回哈希表的最大负载因子。
	Set max_load_factor	设置最大负载因子
	```c++ void max_load_factor(float z); ```	```c++ void max_load_factor(float z); ```
	Effects:;; Does nothing, as the user is not allowed to change this parameter. Kept for compatibility with `boost::unordered_set`.	效果：;; 不执行任何操作，因为不允许用户修改此参数。保留该函数是为了与 `boost::unordered_set` 保持兼容。
	Returns:;; The maximum number of elements the table can hold without rehashing, assuming that no further elements will be erased. Note:;; After construction, rehash or clearance, the table's maximum load is at least `max_load_factor() * bucket_count()`. This number may decrease on erasure under high-load conditions. + + In the presence of concurrent insertion operations, the value returned may not accurately reflect the true state of the table right after execution.	返回值：;; 哈希表在不进行重哈希的前提下可容纳的最大元素数量（假设不会再删除任何元素）。备注：;; 构造完成、重哈希或清空后，哈希表的最大负载至少为 `max_load_factor() * bucket_count()`。在高负载条件下执行删除操作后，该数值可能会降低。在存在并发插入操作时，返回的值可能无法准确反映执行后哈希表的真实状态。
	rehash	重哈希
	```c++ void rehash(size_type n); ```	```c++ void rehash(size_type n); ```
	Throws:;; The function has no effect if an exception is thrown, unless it is thrown by the table's hash function or comparison function. Concurrency:;; Blocking on `*this`. ---	抛出：;; 若抛出异常，函数无任何效果（哈希函数或比较函数抛出的异常除外）。并发：;; 阻塞`*this`。 ---
	```c++ void reserve(size_type n); ```	```c++ void reserve(size_type n); ```
	Equivalent to `a.rehash(ceil(n / a.max_load_factor()))`.	等价于 `a.rehash(ceil(n / a.max_load_factor()))`。
	Statistics	统计信息
	get_stats	get_stats
	```c++ stats get_stats() const; ```	```c++ stats get_stats() const; ```
	Returns:;; A statistical description of the insertion and lookup operations performed by the table so far. Notes:;; Only available if xref:reference/stats.adoc#stats[statistics calculation] is xref:concurrent_flat_set_boost_unordered_enable_stats[enabled].	返回值：;; 该哈希表迄今为止执行的插入与查找操作的统计信息。备注：;; 仅当 xref:reference/stats.adoc#stats[统计计算] 被 xref:concurrent_flat_set_boost_unordered_enable_stats[启用] 时，本接口方可使用。
	```c++ template<class K, class H, class P, class A, class Predicate> typename concurrent_flat_set<K, H, P, A>::size_type erase_if(concurrent_flat_set<K, H, P, A>& c, Predicate pred); ```	```c++ template<class k,="" class="" h,="" p,="" a,="" predicate=""> typename concurrent_flat_set<k, h,="" p,="" a="">::size_type erase_if(concurrent_flat_set<k, h,="" p,="" a="">& c, Predicate pred); ```</k,></k,></class>
	Serialization	序列化
	Saving an concurrent_flat_set to an archive	将 concurrent++_++flat++_++set 保存到归档
	Requires:;; `value_type` is serializable (XML serializable), and it supports Boost.Serialization `save_construct_data`/`load_construct_data` protocol (automatically suported by https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[DefaultConstructible^] types). Concurrency:;; Blocking on `x`.	要求;; `value++_++type` 必须可序列化（支持 XML 序列化），且需要支持 Boost.Serialization 的 `save++_++construct++_++data` / `load++_++construct++_++data` 协议（该协议自动支持满足 https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[可默认构造] 要求的类型）。并发性;; 阻塞于 `x` 。

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Chinese (Simplified Han script) 108 characters editedCurrent translationState: Translated

06/05/2026

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50514

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:1422

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