Boost Unordered Translation (zh_Hans)/Doc / Modules / Root / Pages / Reference / Concurrent Flat Map (adoc) — Chinese (Simplified Han script) @ Boost-Weblate: Returns:;; The number of elements visited (0 or 1). Notes:;; …

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Returns:;; The number of elements visited (0 or 1). Notes:;; The `template<class K, class F>` 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.

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Key	English	Chinese (Simplified Han script)
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^] Concurrency:;; Blocking on `*this` and `other`.	要求：`value_type` 需满足 https://en.cppreference.com/w/cpp/named_req/CopyInsertable[可复制插入^] 要求。并发：阻塞 `*this` 和 `other`。
:733	---	---
	Move Assignment	移动赋值
	```c++ concurrent_flat_map& operator=(concurrent_flat_map&& other) noexcept((boost::allocator_traits<Allocator>::is_always_equal::value \|\| boost::allocator_traits<Allocator>::propagate_on_container_move_assignment::value) && std::is_same<pointer, value_type>::value); ``` The move assignment operator. Destroys previously existing elements, swaps the hash function and predicate from `other`, and move-assigns the allocator from `other` if `Alloc::propagate_on_container_move_assignment` exists and `Alloc::propagate_on_container_move_assignment::value` is `true`. If at this point the allocator is equal to `other.get_allocator()`, the internal bucket array of `other` is transferred directly to `this`; otherwise, inserts move-constructed copies of the elements of `other`. If statistics are xref:concurrent_flat_map_boost_unordered_enable_stats[enabled], transfers the internal statistical information from `other` iff the final allocator is equal to `other.get_allocator()`, and always calls `other.reset_stats()`.	```c++ concurrent_flat_map& operator=(concurrent_flat_map&& other) noexcept((boost::allocator_traits<allocator>::is_always_equal::value \|\| boost::allocator_traits<allocator>::propagate_on_container_move_assignment::value) && std::is_same<pointer, value_type*="">::value); ``` 移动赋值运算符。销毁当前容器原有的所有元素，交换other的哈希函数与谓词；若Alloc::propagate_on_container_move_assignment存在且其值为true，则从other移动赋值分配器。若此时分配器与other.get_allocator()相等，则直接转移other的内部桶数组至当前容器；否则，插入other元素的移动构造副本。如果启用了统计功能：当且仅当最终分配器与other.get_allocator()相等时，从other转移内部统计信息始终调用other.reset_stats()</pointer,></allocator></allocator>
	Concurrency:;; Blocking on `*this` and `other`.	并发：阻塞于 *this 和 other。
:753	---	---
	Initializer List Assignment	初始化列表赋值
	```c++ concurrent_flat_map& operator=(std::initializer_list<value_type> il); ```	```c++ concurrent_flat_map& operator=(std::initializer_list<value_type> il); ```</value_type>
	Assign from values in initializer list. All previously existing elements are destroyed.	并发：阻塞于 *this 和 other。从初始化列表赋值。销毁所有先前存在的元素。
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^] Concurrency:;; Blocking on `*this`.	要求：`value_type` 需满足 https://en.cppreference.com/w/cpp/named_req/CopyInsertable[可复制插入^] 要求。并发：阻塞 `*this`。
:766	---	---
	Visitation	访问操作
	[c]visit	[c]visit
	```c++ template<class F> size_t visit(const key_type& k, F f); template<class F> size_t visit(const key_type& k, F f) const; template<class F> size_t cvisit(const key_type& k, F f) const; template<class K, class F> size_t visit(const K& k, F f); template<class K, class F> size_t visit(const K& k, F f) const; template<class K, class F> size_t cvisit(const K& k, F f) const; ```	```c++ template<class f=""> size_t visit(const key_type& k, F f); template<class f=""> size_t visit(const key_type& k, F f) const; template<class f=""> size_t cvisit(const key_type& k, F f) const; template<class k,="" class="" f=""> size_t visit(const K& k, F f); template<class k,="" class="" f=""> size_t visit(const K& k, F f) const; template<class k,="" class="" f=""> size_t cvisit(const K& k, F f) const; ```</class></class></class></class></class></class>
	If an element `x` exists with key equivalent to `k`, invokes `f` with a reference to `x`. Such reference is const iff `*this` is const.	若存在键与 k 等价的元素 x，则以 x 的引用调用函数 f。当且仅当当前容器 *this 为常量（const）时，该引用为常量引用。
	Returns:;; The number of elements visited (0 or 1). Notes:;; The `template<class K, class F>` 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.	返回值：访问过的元素数量（0 或 1）。注意：template<class k,="" class="" f=""> 形式的重载仅在 Hash::is_transparent 与 Pred::is_transparent 为合法成员别名时才参与重载决议。库假定 Hash 可同时用于 K 类型与 Key 类型，且 Pred 是透明的。这支持异构查找，避免了实例化 Key 类型对象带来的开销。</class>
:788	---	---
	Bulk visit	批量访问
	```c++ template<class FwdIterator, class F> size_t visit(FwdIterator first, FwdIterator last, F f); template<class FwdIterator, class F> size_t visit(FwdIterator first, FwdIterator last, F f) const; template<class FwdIterator, class F> size_t cvisit(FwdIterator first, FwdIterator last, F f) const; ```	```c++ template<class fwditerator,="" class="" f=""> size_t visit(FwdIterator first, FwdIterator last, F f); template<class fwditerator,="" class="" f=""> size_t visit(FwdIterator first, FwdIterator last, F f) const; template<class fwditerator,="" class="" f=""> size_t cvisit(FwdIterator first, FwdIterator last, F f) const; ```</class></class></class>
	For each element `k` in the range [`first`, `last`), if there is an element `x` in the container with key equivalent to `k`, invokes `f` with a reference to `x`. Such reference is const iff `*this` is const.	对范围 [first, last) 中的每个键 k：如果容器中存在键与 k 等价的元素 x，则以 x 的引用调用函数 f。当且仅当当前容器 *this 为常量（const）时，该引用为常量引用。
	Although functionally equivalent to individually invoking xref:concurrent_flat_map_cvisit[`[c\]visit`] for each key, bulk visitation performs generally faster due to internal streamlining optimizations. It is advisable that `std::distance(first,last)` be at least xref:#concurrent_flat_map_constants[`bulk_visit_size`] to enjoy a performance gain: beyond this size, performance is not expected to increase further.	尽管功能上等价于对每个键单独调用 [c]visit，但批量访问因内部流线型优化，通常性能更高。建议 std::distance(first,last) 至少达到 bulk_visit_size 阈值时再使用，以获得性能提升；超过该大小后，性能不会进一步提升。
	Requires:;; `FwdIterator` is a https://en.cppreference.com/w/cpp/named_req/ForwardIterator[LegacyForwardIterator^] ({cpp}11 to {cpp}17), or satisfies https://en.cppreference.com/w/cpp/iterator/forward_iterator[std::forward_iterator^] ({cpp}20 and later). For `K` = `std::iterator_traits<FwdIterator>::value_type`, either `K` is `key_type` or else `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. In the latter case, 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. Returns:;; The number of elements visited.	要求：`FwdIterator` 需满足 https://en.cppreference.com/w/cpp/named_req/ForwardIterator[遗留向前迭代器^] 要求（{cpp}11 至 {cpp}17），或满足 https://en.cppreference.com/w/cpp/iterator/forward_iterator[`std::forward_iterator`^] 要求（{cpp}20 及更高版本）。对于 `K = std::iterator_traits<fwditerator>::value_type`，要么 `K` 是 `key_type`，要么 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef。在后一种情况下，库假定 `Hash` 可同时以 `K` 和 `Key` 调用，且 `Pred` 是透明的。该机制支持异构查找，从而避免实例化 `Key` 类型的开销。返回：被访问的元素数量。</fwditerator>
:824	---	---
	[c]visit_all	[c]visit_all
	```c++ template<class F> size_t visit_all(F f); template<class F> size_t visit_all(F f) const; template<class F> size_t cvisit_all(F f) const; ```	```c++ template<class f=""> size_t visit_all(F f); template<class f=""> size_t visit_all(F f) const; template<class f=""> size_t cvisit_all(F f) const; ```</class></class></class>
	Successively invokes `f` with references to each of the elements in the table. Such references are const iff `*this` is const.	依次以表中每个元素的引用调用函数 f。当且仅当当前容器 *this 为常量（const）时，该引用为常量引用。
	Returns:;; The number of elements visited.	返回值：访问到的元素数量。
:840	---	---
	Parallel [c]visit_all	并行 [c]visit_all
	```c++ template<class ExecutionPolicy, class F> void visit_all(ExecutionPolicy&& policy, F f); template<class ExecutionPolicy, class F> void visit_all(ExecutionPolicy&& policy, F f) const; template<class ExecutionPolicy, class F> void cvisit_all(ExecutionPolicy&& policy, F f) const; ```	```c++ template<class executionpolicy,="" class="" f=""> void visit_all(ExecutionPolicy&& policy, F f); template<class executionpolicy,="" class="" f=""> void visit_all(ExecutionPolicy&& policy, F f) const; template<class executionpolicy,="" class="" f=""> void cvisit_all(ExecutionPolicy&& policy, F f) const; ```</class></class></class>
	Invokes `f` with references to each of the elements in the table. Such references are const iff `*this` is const. Execution is parallelized according to the semantics of the execution policy specified.	以表中每个元素的引用调用函数 f。当且仅当当前容器 *this 为常量（const）时，该引用为常量引用。执行过程将根据指定的执行策略语义进行并行化。

	English	Chinese (Simplified Han script)	Actions
	emplace_or_[c]visit	emplace_or_[c]visit
	```c++ concurrent_flat_map& operator=(std::initializer_list<value_type> il); ```	```c++ concurrent_flat_map& operator=(std::initializer_list<value_type> il); ```</value_type>
	Assign from values in initializer list. All previously existing elements are destroyed.	并发：阻塞于 *this 和 other。从初始化列表赋值。销毁所有先前存在的元素。
	Visitation	访问操作
	[c]visit	[c]visit
	```c++ template<class F> size_t visit(const key_type& k, F f); template<class F> size_t visit(const key_type& k, F f) const; template<class F> size_t cvisit(const key_type& k, F f) const; template<class K, class F> size_t visit(const K& k, F f); template<class K, class F> size_t visit(const K& k, F f) const; template<class K, class F> size_t cvisit(const K& k, F f) const; ```	```c++ template<class f=""> size_t visit(const key_type& k, F f); template<class f=""> size_t visit(const key_type& k, F f) const; template<class f=""> size_t cvisit(const key_type& k, F f) const; template<class k,="" class="" f=""> size_t visit(const K& k, F f); template<class k,="" class="" f=""> size_t visit(const K& k, F f) const; template<class k,="" class="" f=""> size_t cvisit(const K& k, F f) const; ```</class></class></class></class></class></class>
	If an element `x` exists with key equivalent to `k`, invokes `f` with a reference to `x`. Such reference is const iff `*this` is const.	若存在键与 k 等价的元素 x，则以 x 的引用调用函数 f。当且仅当当前容器 *this 为常量（const）时，该引用为常量引用。
	Returns:;; The number of elements visited (0 or 1). Notes:;; The `template<class K, class F>` 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.	返回值：访问过的元素数量（0 或 1）。注意：template<class k,="" class="" f=""> 形式的重载仅在 Hash::is_transparent 与 Pred::is_transparent 为合法成员别名时才参与重载决议。库假定 Hash 可同时用于 K 类型与 Key 类型，且 Pred 是透明的。这支持异构查找，避免了实例化 Key 类型对象带来的开销。</class>
	Bulk visit	批量访问
	```c++ template<class FwdIterator, class F> size_t visit(FwdIterator first, FwdIterator last, F f); template<class FwdIterator, class F> size_t visit(FwdIterator first, FwdIterator last, F f) const; template<class FwdIterator, class F> size_t cvisit(FwdIterator first, FwdIterator last, F f) const; ```	```c++ template<class fwditerator,="" class="" f=""> size_t visit(FwdIterator first, FwdIterator last, F f); template<class fwditerator,="" class="" f=""> size_t visit(FwdIterator first, FwdIterator last, F f) const; template<class fwditerator,="" class="" f=""> size_t cvisit(FwdIterator first, FwdIterator last, F f) const; ```</class></class></class>
	Requires:;; `FwdIterator` is a https://en.cppreference.com/w/cpp/named_req/ForwardIterator[LegacyForwardIterator^] ({cpp}11 to {cpp}17), or satisfies https://en.cppreference.com/w/cpp/iterator/forward_iterator[std::forward_iterator^] ({cpp}20 and later). For `K` = `std::iterator_traits<FwdIterator>::value_type`, either `K` is `key_type` or else `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. In the latter case, 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. Returns:;; The number of elements visited.	要求：`FwdIterator` 需满足 https://en.cppreference.com/w/cpp/named_req/ForwardIterator[遗留向前迭代器^] 要求（{cpp}11 至 {cpp}17），或满足 https://en.cppreference.com/w/cpp/iterator/forward_iterator[`std::forward_iterator`^] 要求（{cpp}20 及更高版本）。对于 `K = std::iterator_traits<fwditerator>::value_type`，要么 `K` 是 `key_type`，要么 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef。在后一种情况下，库假定 `Hash` 可同时以 `K` 和 `Key` 调用，且 `Pred` 是透明的。该机制支持异构查找，从而避免实例化 `Key` 类型的开销。返回：被访问的元素数量。</fwditerator>
	```c++ template<class F> size_t visit_all(F f); template<class F> size_t visit_all(F f) const; template<class F> size_t cvisit_all(F f) const; ```	```c++ template<class f=""> size_t visit_all(F f); template<class f=""> size_t visit_all(F f) const; template<class f=""> size_t cvisit_all(F f) const; ```</class></class></class>
	Successively invokes `f` with references to each of the elements in the table. Such references are const iff `*this` is const.	依次以表中每个元素的引用调用函数 f。当且仅当当前容器 *this 为常量（const）时，该引用为常量引用。
	Returns:;; The number of elements visited.	返回值：访问到的元素数量。
	Parallel [c]visit_all	并行 [c]visit_all
	```c++ bool insert(const value_type& obj); bool insert(const init_type& obj); ```	```c++ bool insert(const value_type& obj); bool insert(const init_type& obj); ```
	```c++ template<class ExecutionPolicy, class F> void visit_all(ExecutionPolicy&& policy, F f); template<class ExecutionPolicy, class F> void visit_all(ExecutionPolicy&& policy, F f) const; template<class ExecutionPolicy, class F> void cvisit_all(ExecutionPolicy&& policy, F f) const; ```	```c++ template<class executionpolicy,="" class="" f=""> void visit_all(ExecutionPolicy&& policy, F f); template<class executionpolicy,="" class="" f=""> void visit_all(ExecutionPolicy&& policy, F f) const; template<class executionpolicy,="" class="" f=""> void cvisit_all(ExecutionPolicy&& policy, F f) const; ```</class></class></class>
	Invokes `f` with references to each of the elements in the table. Such references are const iff `*this` is const. Execution is parallelized according to the semantics of the execution policy specified.	以表中每个元素的引用调用函数 f。当且仅当当前容器 *this 为常量（const）时，该引用为常量引用。执行过程将根据指定的执行策略语义进行并行化。
	Throws:;; Depending on the exception handling mechanism of the execution policy used, may call `std::terminate` if an exception is thrown within `f`. Notes:;; Only available in compilers supporting C++17 parallel algorithms. + + These overloads only participate in overload resolution if `std::is_execution_policy_v<std::remove_cvref_t<ExecutionPolicy>>` is `true`. + + Unsequenced execution policies are not allowed.	抛出异常：根据所使用执行策略的异常处理机制，如果 f 内部抛出异常，则可能会调用 std::terminate。注意：仅在支持 C++17 并行算法的编译器中可用。仅当 std::is_execution_policy_v<std::remove_cvref_t<executionpolicy>> 为 true 时，这些重载版本才参与重载决议。不允许使用无序执行策略。</std::remove_cvref_t<executionpolicy>
	[c]visit_while	[c]visit_while
	Successively invokes `f` with references to each of the elements in the table until `f` returns `false` or all the elements are visited. Such references to the elements are const iff `*this` is const.	依次以表中每个元素的引用调用函数 f，直到 f 返回 false 或遍历完所有元素。当且仅当当前容器 *this 为常量（const）时，该元素引用为常量引用。
	Parallel [c]visit_while	并行 [c]visit_while
	Deletes all preexisting elements of a `concurrent_flat_map` `x` and inserts from an archive (XML archive) `ar` restored copies of the elements of the original `concurrent_flat_map` `other` saved to the storage read by `ar`.	删除 `concurrent++_++flat++_++map` 容器 `x` 中所有已存在的元素，并从归档（XML 归档） `ar` 中插入原始 `concurrent++_++flat++_++map` 容器 `other` 的元素副本，这些副本是从 `ar` 所读取的存储中恢复的。

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Chinese (Simplified Han script) 330 characters editedCurrent translationState: Translated

~~Returns:;; The number of elements visited (0 or 1). Notes:;; The `~~返回值：访问过的元素数量（0 或 1）。
注意：template<class K,k,="" class ~~F>` overloads only participate in overload resolution if `~~="" f=""> 形式的重载仅在 Hash::is_transparent~~` and `~~ 与 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. 为合法成员别名时才参与重载决议。
库假定 Hash 可同时用于 K 类型与 Key 类型，且 Pred 是透明的。
这支持异构查找，避免了实例化 Key 类型对象带来的开销。</class>

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