Boost Unordered Translation (zh_Hans)/Doc / Modules / Root / Pages / Reference / Concurrent Node Set (adoc) — Chinese (Simplified Han script) @ Boost-Weblate: ```c++ template<class H2, class P2> size_type merge(concurrent_node

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Key	English	Chinese (Simplified Han script)
	```c++ node_type extract(const key_type& k); template<class K> node_type extract(K&& k); ```	```c++ node_type extract(const key_type& k); template<class k=""> node_type extract(K&& k); ```</class>
	Extracts the element with key equivalent to `k`, if it exists.	返回值：;; 提取键与 `k` 等价的元素（若该元素存在）。
	Returns:;; A `node_type` object holding the extracted element, or empty if no element was extracted. Throws:;; Only throws an exception if it is thrown by `hasher` or `key_equal`. 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.	返回值：;; 存储提取元素的 `node_type` 对象，若未提取任何元素则为空。异常：;; 仅当 `hasher` 或 `key_equal` 抛出异常时才会抛出异常。注意：;; 仅当 `Hash::is_transparent` 和 `Pred::is_transparent` 为合法成员类型别名时，`template<class k="">` 重载才参与重载决议。标准库假定 `Hash` 可同时接收 `K` 与 `Key` 类型参数调用，且 `Pred` 是透明的。该机制支持异构查找，避免了实例化 `Key` 类型对象的开销。</class>
:1397	---	---
	extract_if	条件提取
	```c++ template<class F> node_type extract_if(const key_type& k, F f); template<class K, class F> node_type extract_if(K&& k, F f); ```	```c++ template<class f=""> node_type extract_if(const key_type& k, F f); template<class k,="" class="" f=""> node_type extract_if(K&& k, F f); ```</class></class>
	Extracts the element `x` with key equivalent to `k`, if it exists and `f(x)` is `true`.	若键与 `k` 等价的元素 `x` 存在且 `f(x)` 为 `true`，则提取该元素。
	Returns:;; A `node_type` object holding the extracted element, or empty if no element was extracted. Throws:;; Only throws an exception if it is thrown by `hasher` or `key_equal` or `f`. 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.	返回值：;; 存储被提取元素的 `node_type` 对象，若未提取任何元素则为空。异常：;; 仅当 `hasher`、`key_equal` 或 `f` 抛出异常时才会抛出异常。注意：;; 仅当 `Hash::is_transparent` 和 `Pred::is_transparent` 为合法成员类型别名时，`template<class k="">` 重载才参与重载决议。标准库假定 `Hash` 可同时接收 `K` 与 `Key` 类型参数调用，且 `Pred` 是透明的。该机制支持异构查找，避免了实例化 `Key` 类型对象的开销。</class>
:1412	---	---
	clear	清空
	```c++ void clear() noexcept; ```	```c++ void clear() noexcept; ```
	Erases all elements in the table.	删除表中的所有元素。
	Postconditions:;; `size() == 0`, `max_load() >= max_load_factor() * bucket_count()` Concurrency:;; Blocking on `*this`.	后置条件：;; `size() == 0`，`max_load() >= max_load_factor() * bucket_count()` 并发：;; 阻塞 `*this`。
:1425	---	---
	merge	合并
	```c++ template<class H2, class P2> size_type merge(concurrent_node_set<Key, H2, P2, Allocator>& source); template<class H2, class P2> size_type merge(concurrent_node_set<Key, H2, P2, Allocator>&& source); ```	```c++ template<class h2,="" class="" p2=""> size_type merge(concurrent_node_set<key, h2,="" p2,="" allocator="">& source); template<class h2,="" class="" p2=""> size_type merge(concurrent_node_set<key, h2,="" p2,="" allocator="">&& source); ```</key,></class></key,></class>
	Move-inserts all the elements from `source` whose key is not already present in `*this`, and erases them from `source`.	将 `source` 中所有键尚未存在于 `*this` 内的元素移动插入，并从 `source` 中删除这些元素。
	Returns:;; The number of elements inserted. Concurrency:;; Blocking on `*this` and `source`.	返回值：;; 插入的元素数量。并发：;; 阻塞 `*this` 和 `source`。
:1441	---	---
	Observers	观察器
	get_allocator	get_allocator
	``` allocator_type get_allocator() const noexcept; ```	``` allocator_type get_allocator() const noexcept; ```
	Returns:;; The table's allocator.	返回值：;; 表的分配器。
:1453	---	---
	hash_function	哈希函数
	``` hasher hash_function() const; ```	``` hasher hash_function() const; ```
	Returns:;; The table's hash function.	返回值：;; 表的哈希函数。
:1463	---	---
	key_eq	key_eq
	``` 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。

	English	Chinese (Simplified Han script)	Actions
	Inserts an object, constructed with the arguments `args`, in the table if there is no element in the table with an equivalent key, and then invokes `f1` with a const reference to the newly created element. Otherwise, invokes `f2` with a const reference to the equivalent element.	若哈希表中不存在键等价的元素，则使用参数 `args` 构造对象并插入表中，随后以新建元素的常量引用为参数调用函数 `f1`；否则，以该等价元素的常量引用为参数调用函数 `f2`。
	Requires:;; `value_type` is constructible from `args`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; The interface is exposition only, as C++ does not allow to declare parameters `f1` and `f2` after a variadic parameter pack.	要求：;; `value_type` 可由 `args` 构造。返回值：;; 若成功插入元素则返回 `true`。并发特性：;; 会阻塞当前对象的重哈希操作。注意：;; 该接口仅为说明性用法，因为 C++ 不允许在可变参数包之后声明 `f1` 和 `f2` 参数。
	Copy insert_and_[c]visit	复制 insert++_++and++_[++c++]++visit
	```c++ template<class F1, class F2> bool insert_and_visit(const value_type& obj, F1 f1, F2 f2); template<class F1, class F2> bool insert_and_cvisit(const value_type& obj, F1 f2, F2 f2); ```	```c++ template<class f1,="" class="" f2=""> bool insert_and_visit(const value_type& obj, F1 f1, F2 f2); template<class f1,="" class="" f2=""> bool insert_and_cvisit(const value_type& obj, F1 f2, F2 f2); ```</class></class>
	Move insert_and_[c]visit	移动 insert++_++and++_[++c++]++visit
	```c++ template<class F1, class F2> bool insert_and_visit(value_type&& obj, F1 f1, F2 f2); template<class F1, class F2> bool insert_and_cvisit(value_type&& obj, F1 f1, F2 f2); ```	```c++ template<class f1,="" class="" f2=""> bool insert_and_visit(value_type&& obj, F1 f1, F2 f2); template<class f1,="" class="" f2=""> bool insert_and_cvisit(value_type&& obj, F1 f1, F2 f2); ```</class></class>
	Insert Node and Visit	节点插入并访问
	erase	擦除
	Returns:;; The number of elements erased. Throws:;; Only throws an exception if it is thrown by `f`.	返回值：;; 删除的元素数量。异常：;; 仅当 `f` 抛出异常时才会抛出异常。
	Parallel erase_if	并行条件擦除
	Iterator Range Constructor with Bucket Count and Hasher	带桶数和哈希函数的迭代器范围构造函数
	Invokes `f` with references to each of the elements in the table, and erases those for which `f` returns `true`. Execution is parallelized according to the semantics of the execution policy specified.	以表中每个元素的引用调用 `f`，并删除所有 `f` 返回 `true` 的元素。执行过程将根据指定执行策略的语义进行并行化处理。
	Throws:;; Nothing unless `key_equal` or `hasher` throw on swapping. Concurrency:;; Blocking on `*this` and `other`.	异常：;; 除非 `key_equal` 或 `hasher` 在交换时抛出异常，否则不抛出任何异常。并发：;; 阻塞 `*this` 和 `other`。
	```c++ template<class F> node_type extract_if(const key_type& k, F f); template<class K, class F> node_type extract_if(K&& k, F f); ```	```c++ template<class f=""> node_type extract_if(const key_type& k, F f); template<class k,="" class="" f=""> node_type extract_if(K&& k, F f); ```</class></class>
	Extracts the element `x` with key equivalent to `k`, if it exists and `f(x)` is `true`.	若键与 `k` 等价的元素 `x` 存在且 `f(x)` 为 `true`，则提取该元素。
	```c++ template<class H2, class P2> size_type merge(concurrent_node_set<Key, H2, P2, Allocator>& source); template<class H2, class P2> size_type merge(concurrent_node_set<Key, H2, P2, Allocator>&& source); ```	```c++ template<class h2,="" class="" p2=""> size_type merge(concurrent_node_set<key, h2,="" p2,="" allocator="">& source); template<class h2,="" class="" p2=""> size_type merge(concurrent_node_set<key, h2,="" p2,="" allocator="">&& source); ```</key,></class></key,></class>
	Observers	观察器
	get_allocator	get_allocator
	Returns:;; The table's key equality predicate.	返回值：;; 表的键相等性断言。
	Bucket Interface	桶接口
	bucket_count	bucket_count
	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>
	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。
	When `size() == 0`, `rehash(0)` will deallocate the underlying buckets array.	效果：;; 当 `size() == 0` 时，调用 `rehash(0)` 会释放底层桶数组的内存。
	A deduction guide will not participate in overload resolution if any of the following are true:	如果以下任何一条件为真，则推导指引将不参与重载决议：
	A `size_type` parameter type in a deduction guide refers to the `size_type` member type of the container type deduced by the deduction guide. Its default value coincides with the default value of the constructor selected.	推导指引中的 `size++_++type` 参数类型，指向由该推导指引所推导容器类型的 `size++_++type` 成员类型。其默认值与所选构造函数的默认值一致。
	```c++ template<class Key, class Hash, class Pred, class Alloc> bool operator==(const concurrent_node_set<Key, Hash, Pred, Alloc>& x, const concurrent_node_set<Key, Hash, Pred, Alloc>& y); ```	```c++ template<class key,="" class="" hash,="" pred,="" alloc=""> bool operator==(const concurrent_node_set<key, hash,="" pred,="" alloc="">& x, const concurrent_node_set<key, hash,="" pred,="" alloc="">& y); ```</key,></key,></class>
	```c++ template<class Key, class Hash, class Pred, class Alloc> void swap(concurrent_node_set<Key, Hash, Pred, Alloc>& x, concurrent_node_set<Key, Hash, Pred, Alloc>& y) noexcept(noexcept(x.swap(y))); ```	```c++ template<class key,="" class="" hash,="" pred,="" alloc=""> void swap(concurrent_node_set<key, hash,="" pred,="" alloc="">& x, concurrent_node_set<key, hash,="" pred,="" alloc="">& y) noexcept(noexcept(x.swap(y))); ```</key,></key,></class>

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Chinese (Simplified Han script) 90 characters editedCurrent translationState: Translated

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