Boost Unordered Translation (zh_Hans)/Doc / Modules / Root / Pages / Reference / Unordered Multiset (adoc) — Chinese (Simplified Han script) @ Boost-Weblate: Returns:;; The container's key equality predicate

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Key	English	Chinese (Simplified Han script)
	Invalidates iterators to transferred elements.	使指向被转移元素的迭代器失效。
	Invalidates iterators belonging to `*this`.	使属于 `*this` 的迭代器失效。
	Iterators to non-transferred elements in `source` remain valid.	指向 `source` 中未被转移元素的迭代器保持有效。
	--	--
:1069	---	---
	Observers	观察器
	get_allocator	get_allocator
	``` allocator_type get_allocator() const noexcept; ```	``` allocator_type get_allocator() const noexcept; ```
:1078	---	---
	hash_function	哈希函数
	``` hasher hash_function() const; ```	``` hasher hash_function() const; ```
	Returns:;; The container's hash function.	返回：容器的哈希函数对象。
:1088	---	---
	key_eq	key_eq
	``` key_equal key_eq() const; ```	``` key_equal key_eq() const; ```
	Returns:;; The container's key equality predicate	返回：容器的键相等谓词。
:1099	---	---
	Lookup	查找
	find	find
	```c++ iterator find(const key_type& k); const_iterator find(const key_type& k) const; template<class K> iterator find(const K& k); template<class K> const_iterator find(const K& k) const; template<typename CompatibleKey, typename CompatibleHash, typename CompatiblePredicate> iterator find(CompatibleKey const&, CompatibleHash const&, CompatiblePredicate const&); template<typename CompatibleKey, typename CompatibleHash, typename CompatiblePredicate> const_iterator find(CompatibleKey const&, CompatibleHash const&, CompatiblePredicate const&) const; ```	```c++ iterator find(const key_type& k); const_iterator find(const key_type& k) const; template<class k=""> iterator find(const K& k); template<class k=""> const_iterator find(const K& k) const; template<typename compatiblekey,="" typename="" compatiblehash,="" compatiblepredicate=""> iterator find(CompatibleKey const&, CompatibleHash const&, CompatiblePredicate const&); template<typename compatiblekey,="" typename="" compatiblehash,="" compatiblepredicate=""> const_iterator find(CompatibleKey const&, CompatibleHash const&, CompatiblePredicate const&) const; ```</typename></typename></class></class>
	Returns:;; An iterator pointing to an element with key equivalent to `k`, or `b.end()` if no such element exists. Notes:;; The templated overloads containing `CompatibleKey`, `CompatibleHash` and `CompatiblePredicate` are non-standard extensions which allow you to use a compatible hash function and equality predicate for a key of a different type in order to avoid an expensive type cast. In general, its use is not encouraged and instead the `K` member function templates should be used. + + The `template<class K>` 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：指向键与 `k` 等价的元素的迭代器；如果不存在这样的元素，则返回 `b.end()`。注意：包含 `CompatibleKey`、`CompatibleHash` 和 `CompatiblePredicate` 的模板化重载是非标准扩展，允许您为不同类型的键使用兼容的哈希函数和相等谓词，以避免昂贵的类型转换。通常不鼓励使用它们，而应使用 `K` 成员函数模板。 `template<class k="">` 重载仅在 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef 时参与重载决议。库假定 `Hash` 可同时使用 `K` 和 `Key` 调用，且 `Pred` 是透明的。这支持了异构查找，从而避免了实例化 `Key` 类型对象的开销。</class>
:1125	---	---
	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>
	Returns:;; The number of elements with key equivalent to `k`. 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：键与 `k` 等价的元素数量。注意：`template<class k="">` 重载仅在 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef 时参与重载决议。库假定 `Hash` 可同时使用 `K` 和 `Key` 调用，且 `Pred` 是透明的。这支持了异构查找，从而避免了实例化 `Key` 类型对象的开销。</class>
:1138	---	---
	contains	包含
	```c++ bool contains(const key_type& k) const; template<class K> bool contains(const K& k) const; ```	```c++ bool contains(const key_type& k) const; template<class k=""> bool contains(const K& k) const; ```</class>
	Returns:;; A boolean indicating whether or not there is an element with key equal to `key` in the container 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：一个布尔值，指示容器中是否存在键等于 `key` 的元素。注意：`template<class k="">` 重载仅在 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef 时参与重载决议。库假定 `Hash` 可同时使用 `K` 和 `Key` 调用，且 `Pred` 是透明的。这支持了异构查找，从而避免了实例化 `Key` 类型对象的开销。</class>
:1151	---	---
	equal_range	equal_range

	English	Chinese (Simplified Han script)	Actions
	An iterator with the same value type, difference type and pointer and reference type as iterator.	一种迭代器，其值类型、差值类型以及指针和引用类型均与 iterator 相同。
	Copy Constructor with Allocator	带分配器的拷贝构造函数
	Requires:;; `nh` is empty or `nh.get_allocator()` is equal to the container's allocator. Returns:;; If `nh` was empty, returns `end()`. + + Otherwise returns an iterator pointing to the newly inserted element. Throws:;; If an exception is thrown by an operation other than a call to `hasher` the function has no effect. Notes:;; Can invalidate iterators, but only if the insert causes the load factor to be greater to or equal to the maximum load factor. + + Pointers and references to elements are never invalidated. + + This can be used to insert a node extracted from a compatible `unordered_set`.	要求：`nh` 为空，或者 `nh.get_allocator()` 等于容器的分配器。返回：如果 `nh` 为空，则返回 `end()`。否则，返回指向新插入元素的迭代器。抛出：如果除调用 `hasher` 之外的操作抛出异常，则该函数无效果。注意：可能使迭代器失效，但仅当插入导致负载因子大于或等于最大负载因子时才会发生。指向元素的指针和引用永远不会失效。此函数可用于插入从兼容的 `unordered_set` 中提取的节点。
	Requires:;; `nh` is empty or `nh.get_allocator()` is equal to the container's allocator. Returns:;; If `nh` was empty, returns `end()`. + + Otherwise returns an iterator pointing to the newly inserted element. Throws:;; If an exception is thrown by an operation other than a call to hasher the function has no effect. Notes:;; The standard is fairly vague on the meaning of the hint. But the only practical way to use it, and the only way that Boost.Unordered supports is to point to an existing element with the same key. + + Can invalidate iterators, but only if the insert causes the load factor to be greater to or equal to the maximum load factor. + + Pointers and references to elements are never invalidated. + + This can be used to insert a node extracted from a compatible `unordered_set`.	要求：`nh` 为空，或者 `nh.get_allocator()` 等于容器的分配器。返回：如果 `nh` 为空，则返回 `end()`。否则，返回指向新插入元素的迭代器。抛出：如果除调用 `hasher` 之外的操作抛出异常，则该函数无效果。注意：标准关于 `hint` 的含义表述相当模糊。但唯一实际的使用方式，也是 Boost.Unordered 支持的唯一方式，是将其指向一个具有相同键的已存在元素。可能使迭代器失效，但仅当插入导致负载因子大于或等于最大负载因子时才会发生。指向元素的指针和引用永远不会失效。此函数可用于插入从兼容的 `unordered_set` 中提取的节点。
	Erase by Position	通过位置擦除
	```c++ iterator erase(iterator position); iterator erase(const_iterator position); ```	```c++ iterator erase(iterator position); iterator erase(const_iterator position); ```
	Class Template unordered_multiset	类模板 unordered_multiset
	:idprefix: unordered_multiset_	:idprefix: unordered_multiset_
	Erase by Value	通过值擦除
	erase_return_void	erase_return_void
	merge	合并
	Invalidates iterators to transferred elements.	使指向被转移元素的迭代器失效。
	Invalidates iterators belonging to `*this`.	使属于 `*this` 的迭代器失效。
	Iterators to non-transferred elements in `source` remain valid.	指向 `source` 中未被转移元素的迭代器保持有效。
	--	--
	key_eq	key_eq
	``` key_equal key_eq() const; ```	``` key_equal key_eq() const; ```
	Returns:;; The container's key equality predicate	返回：容器的键相等谓词。
	Lookup	查找
	find	find
	equal_range	equal_range
	```c++ const_local_iterator cend(size_type n) const; ```	```c++ const_local_iterator cend(size_type n) const; ```
	Requires:;; `n` shall be in the range `[0, bucket_count())`. Returns:;; A constant local iterator pointing the 'one past the end' element in the bucket with index `n`.	要求：`n` 必须在 `[0, bucket_count())` 范围内。返回：指向索引为 `n` 的桶中“尾后”元素的常量局部迭代器。
	A deduction guide will not participate in overload resolution if any of the following are true:	如果满足以下任一条件，则推导指引不会参与重载决议：
	Equality Comparisons	相等性比较
	operator	运算符
	Swaps the contents of `x` and `y`.	交换 `x` 和 `y` 的内容。
	```c++ template<class K, class H, class P, class A, class Predicate> typename unordered_multiset<K, H, P, A>::size_type erase_if(unordered_multiset<K, H, P, A>& c, Predicate pred); ```	```c++ template<class k,="" class="" h,="" p,="" a,="" predicate=""> typename unordered_multiset<k, h,="" p,="" a="">::size_type erase_if(unordered_multiset<k, h,="" p,="" a="">& c, Predicate pred); ```</k,></k,></class>
	Traverses the container `c` and removes all elements for which the supplied predicate returns `true`.	遍历容器 `c`，并移除所有使给定谓词返回 `true` 的元素。
	Serialization	序列化

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