Boost Unordered Translation (zh_Hans)/Doc / Modules / Root / Pages / Reference / Concurrent Flat Map (adoc) — Chinese (Simplified Han script) @ Boost-Weblate: Chunk size internally used in xref:concurrent_flat_map_bulk

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Key	English	Chinese (Simplified Han script)
	Non-mutable modification of the element.	对元素的非可变修改。
	Mutable modification of the element:	对元素的可变修改：
	Within a container function accepting two visitation functions, always for the first function. Within a non-const container function whose name does not contain `cvisit`, for the last (or only) visitation function.	在容器接受两个访问函数的操作中，此条件始终适用于第一个访问函数。在名称不包含 `cvisit` 的非常量容器函数中，此条件适用于最后一个（或唯一一个）访问函数。
	Any `boost::concurrent_flat_map operation` that inserts or modifies an element `e` synchronizes with the internal invocation of a visitation function on `e`.	任何插入或修改元素 `e` 的 `boost::concurrent_flat_map operation` 操作，都会与针对 `e` 的内部访问函数调用同步。
	Visitation functions executed by a `boost::concurrent_flat_map` `x` are not allowed to invoke any operation on `x`; invoking operations on a different `boost::concurrent_flat_map` instance `y` is allowed only if concurrent outstanding operations on `y` do not access `x` directly or indirectly.	由 `boost::concurrent_flat_map` 容器 `x` 执行的访问函数不得调用 `x` 上的任何操作；仅当对另一 `boost::concurrent_flat_map` 实例 `y` 的并发的未完成操作不直接或间接访问 `x` 时，才允许调用实例 `y` 上的操作。
:415	---	---
	Configuration Macros	配置宏
	`BOOST_UNORDERED_DISABLE_REENTRANCY_CHECK`	`BOOST_UNORDERED_DISABLE_REENTRANCY_CHECK`
	In debug builds (more precisely, when link:../../../../../assert/doc/html/assert.html#boost_assert_is_void[`BOOST_ASSERT_IS_VOID`^] is not defined), __container reentrancies__ (illegaly invoking an operation on `m` from within a function visiting elements of `m`) are detected and signalled through `BOOST_ASSERT_MSG`. When run-time speed is a concern, the feature can be disabled by globally defining this macro.	在调试版本中（更准确地说，当未定义 link:../../../../../assert/doc/html/assert.html#boost_assert_is_void[`BOOST_ASSERT_IS_VOID`] 时），系统会检测__容器重入__行为（即在访问 `m` 元素的函数内部非法调用 `m` 上的操作），并通过 `BOOST_ASSERT_MSG` 发出信号。若需关注运行时速度，可通过全局定义此宏来禁用该功能。
:428	---	---
	`BOOST_UNORDERED_ENABLE_STATS`	`BOOST_UNORDERED_ENABLE_STATS`
	Globally define this macro to enable xref:reference/stats.adoc#stats[statistics calculation] for the table. Note that this option decreases the overall performance of many operations.	全局定义此宏以启用容器的 xref:reference/stats.adoc#stats[统计计算] 功能。请注意，此选项会降低多数操作的总体性能。
:435	---	---
	Constants	常量
	```cpp static constexpr size_type bulk_visit_size; ```	```cpp static constexpr size_type bulk_visit_size; ```
	Chunk size internally used in xref:concurrent_flat_map_bulk_visit[bulk visit] operations.	xref:concurrent_flat_map_bulk_visit [批量访问] 操作内部使用的块大小。
	Constructors	构造函数
	Default Constructor	默认构造函数
	```c++ concurrent_flat_map(); ```	```c++ concurrent_flat_map(); ```
	Constructs an empty table using `hasher()` as the hash function, `key_equal()` as the key equality predicate and `allocator_type()` as the allocator.	使用hasher()作为哈希函数、key_equal()作为键相等谓词、allocator_type()作为分配器，构造一个空表。
:456	Postconditions:;; `size() == 0` Requires:;; If the defaults are used, `hasher`, `key_equal` and `allocator_type` need to be https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[DefaultConstructible^].	后置条件：size() == 0 要求：若使用默认构造方式，则hasher、key_equal和allocator_type必须满足https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[默认可构造]要求。
:459	---	---
	Bucket Count Constructor	桶数构造函数
	```c++ explicit concurrent_flat_map(size_type n, const hasher& hf = hasher(), const key_equal& eql = key_equal(), const allocator_type& a = allocator_type()); ```	```c++ explicit concurrent_flat_map(size_type n, const hasher& hf = hasher(), const key_equal& eql = key_equal(), const allocator_type& a = allocator_type()); ```
	Constructs an empty table with at least `n` buckets, using `hf` as the hash function, `eql` as the key equality predicate, and `a` as the allocator.	构造一个至少包含n个桶的空表，使用hf作为哈希函数、eql作为键相等谓词、a作为分配器。
:473	Postconditions:;; `size() == 0` Requires:;; If the defaults are used, `hasher`, `key_equal` and `allocator_type` need to be https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[DefaultConstructible^].	后置条件：size() == 0 要求：若使用默认参数，则hasher、key_equal和allocator_type必须满足https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[默认可构造]要求。
:476	---	---
	Iterator Range Constructor	迭代器范围构造函数
	Constructs an empty table with at least `n` buckets, using `hf` as the hash function, `eql` as the key equality predicate and `a` as the allocator, and inserts the elements from `[f, l)` into it.	构造一个至少包含 `n` 个桶的空容器，使用 `hf` 作为哈希函数、 `eql` 作为键相等性谓词、 `a` 作为分配器，并将 `[f, l)` 范围内的元素插入其中。
:492	Requires:;; If the defaults are used, `hasher`, `key_equal` and `allocator_type` need to be https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[DefaultConstructible^].	要求;; 若使用默认值，则 `hasher` 、 `key++_++equal` 和 `allocator++_++type` 需满足 https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[可默认构造] 要求。
:494	---	---

	English	Chinese (Simplified Han script)	Actions
	reserve	保留
	Mutable modification of the element:	对元素的可变修改：
	```c++ [[nodiscard]] bool empty() const noexcept; ```	```c++ [[nodiscard]] bool empty() const noexcept; ```
	```c++ size_type size() const noexcept; ```	```c++ size_type size() const noexcept; ```
	Returns:;; The number of elements in the table.	返回值：表中的元素数量。
	Notes:;; In the presence of concurrent insertion operations, the value returned may not accurately reflect the true size of the table right after execution.	注意：在存在并发插入操作时，返回的值可能无法准确反映函数执行后容器的真实大小。
	max_size	max_size
	```c++ size_type max_size() const noexcept; ```	```c++ size_type max_size() const noexcept; ```
	Returns:;; `size()` of the largest possible table.	返回值：容器所能容纳的最大元素数量（最大容量）。
	Modifiers	修改器
	Inserts an object, constructed with the arguments `args`, in the table if and only if there is no element in the table with an equivalent key.	当且仅当容器中不存在等价键的元素时，才会使用参数 args 构造对象并插入到容器中。
	Requires:;; `value_type` is constructible from `args`. 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. + + If `args...` is of the form `k,v`, it delays constructing the whole object until it is certain that an element should be inserted, using only the `k` argument to check.	要求：`value_type` 可从 `args` 构造。返回：若执行了插入则返回 `true`。并发：在 `*this` 的 rehash 操作上阻塞。注意：如果执行了 rehash，则指向元素的指针和引用会失效。+ +若 `args...` 的形式为 `k,v`，则仅在确定应插入元素时才构造整个对象，检查时仅使用 `k` 参数。
	Copy Insert	复制插入
	Synopsis	概要
	Description	描述
	Chunk size internally used in xref:concurrent_flat_map_bulk_visit[bulk visit] operations.	xref:concurrent_flat_map_bulk_visit [批量访问] 操作内部使用的块大小。
	The move constructor. The internal bucket array of `other` is transferred directly to the new table. The hash function, predicate and allocator are moved-constructed from `other`. If statistics are xref:concurrent_flat_map_boost_unordered_enable_stats[enabled], transfers the internal statistical information from `other` and calls `other.reset_stats()`.	移动构造函数。other 的内部桶数组会直接转移到新表中。哈希函数、谓词和分配器均从 other 移动构造而来。如果启用了 xref:concurrent_flat_map_boost_unordered_enable_stats [统计功能]，则从 other 转移内部统计信息，并调用 other.reset_stats()。
	Move Constructor with Allocator	带分配器的移动构造函数
	Insert Initializer List	初始化列表插入
	```c++ template<class InputIterator,class F> size_type insert_or_visit(InputIterator first, InputIterator last, F f); template<class InputIterator,class F> size_type insert_or_cvisit(InputIterator first, InputIterator last, F f); ```	```c++ template<class inputiterator,class="" f=""> size_type insert_or_visit(InputIterator first, InputIterator last, F f); template<class inputiterator,class="" f=""> size_type insert_or_cvisit(InputIterator first, InputIterator last, F f); ```</class></class>
	Insert Iterator Range and Visit	迭代器范围插入并访问
	```c++ template<class... Args> bool try_emplace(const key_type& k, Args&&... args); template<class... Args> bool try_emplace(key_type&& k, Args&&... args); template<class K, class... Args> bool try_emplace(K&& k, Args&&... args); ```	```c++ template<class... args=""> bool try_emplace(const key_type& k, Args&&... args); template<class... args=""> bool try_emplace(key_type&& k, Args&&... args); template<class k,="" class...="" args=""> bool try_emplace(K&& k, Args&&... args); ```</class></class...></class...>
	unlike xref:#concurrent_flat_map_emplace[emplace], which simply forwards all arguments to ``value_type``'s constructor.	这与 xref:#concurrent_flat_map_emplace [emplace] 不同，后者仅将所有参数转发给value_type的构造函数。
	insert_or_assign	insert_or_assign
	If there is no such element, it is added to the table as: ```c++	若不存在该元素，则将其以如下形式添加到容器中：
	value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<Key>(k)), std::forward_as_tuple(std::forward<M>(obj)))	value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<key>(k)), std::forward_as_tuple(std::forward<m>(obj)))</m></key>
	value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<K>(k)), std::forward_as_tuple(std::forward<M>(obj))) ```	value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<k>(k)), std::forward_as_tuple(std::forward<m>(obj))) ```</m></k>
	Erases the element with key equivalent to `k` if it exists.	若存在键等价于`k`的元素，则删除该元素。
	Erases the element `x` with key equivalent to `k` if it exists and `f(x)` is `true`.	若存在键与 `k` 等价的元素 `x`，且 `f(x)` 返回 `true`，则删除该元素。
	```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>

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