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Key	English	Chinese (Simplified Han script)
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[EmplaceConstructible^] from `k`. Returns:;; The bool component of the return type is true if an insert took place. + + If an insert took place, then the iterator points to the newly inserted element. Otherwise, it points to the element with equivalent key. 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 overload only participates in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs and neither `iterator` nor `const_iterator` are implicitly convertible from `K`. 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.	要求：`value_type` 需从 `k` 处满足对容器的 https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[可原位构造^] 要求。返回：若执行了插入，则返回类型中的布尔分量为 `true`。+ +若执行了插入，则迭代器指向新插入的元素；否则指向等价的元素。抛出：若调用 `hasher` 以外的操作抛出异常，则函数无效果。说明：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。+ +此重载仅在以下条件下参与重载决议：`Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef，且 `iterator` 和 `const_iterator` 均不能从 `K` 隐式转换。库假定 `Hash` 可同时以 `K` 和 `Key` 调用，且 `Pred` 是透明的。这实现了异构查找，从而避免了实例化 `Key` 类型对象的开销。
:824	---	---
	Copy Insert with Hint	带提示的复制插入
	```c++ iterator insert(const_iterator hint, const value_type& obj); ``` Inserts `obj` in the container if and only if there is no element in the container with an equivalent key.	```c++ iterator insert(const_iterator hint, const value_type& obj); ``` Inserts `obj` in the container if and only if there is no element in the container with an equivalent key.
:832	`hint` is a suggestion to where the element should be inserted.	`hint` 是插入元素位置的建议。
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^]. Returns:;; If an insert took place, then the iterator points to the newly inserted element. Otherwise, it points to the element with equivalent key. 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.	要求：`value_type` 需满足 https://en.cppreference.com/w/cpp/named_req/CopyInsertable[可复制插入^] 要求。返回：若执行了插入，则迭代器指向新插入的元素；否则指向等价的元素。抛出：若调用 `hasher` 以外的操作抛出异常，则函数无效果。说明：标准对提示的含义表述相当模糊。但使用它的唯一实际方式，也是 Boost.Unordered 唯一支持的方式，是将其指向具有相同键的现有元素。+ +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。
:844	---	---
	Move Insert with Hint	带提示的移动插入
	```c++ iterator insert(const_iterator hint, value_type&& obj); ```	```c++ iterator insert(const_iterator hint, value_type&& obj); ```
:851	Inserts `obj` in the container if and only if there is no element in the container with an equivalent key.	当且仅当容器中没有等价的键时，将 `obj` 插入容器。
:853	`hint` is a suggestion to where the element should be inserted.	`hint` 是一个关于元素应插入位置的建议。
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; If an insert took place, then the iterator points to the newly inserted element. Otherwise, it points to the element with equivalent key. 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.	要求：`value_type` 需满足 https://en.cppreference.com/w/cpp/named_req/MoveInsertable[可移动插入^] 要求。返回：若执行了插入，则迭代器指向新插入的元素；否则指向等价的元素。抛出：若调用 `hasher` 以外的操作抛出异常，则函数无效果。说明：标准对提示的含义表述相当模糊。但使用它的唯一实际方式，也是 Boost.Unordered 唯一支持的方式，是将其指向具有相同键的现有元素。+ +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。
:865	---	---
	Transparent Insert with Hint	带提示的透明插入
	```c++ template<class K> iterator insert(const_iterator hint, K&& k); ```	```c++ template<class k=""> iterator insert(const_iterator hint, K&& k); ```</class>
:872	Inserts an element constructed from `std::forward<K>(k)` in the container if and only if there is no element in the container with an equivalent key.	当且仅当容器中不存在等价键的元素时，插入一个由 `std::forward<k>(k)` 构造的元素。</k>
:874	`hint` is a suggestion to where the element should be inserted.	`hint` 是插入元素位置的建议。
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[EmplaceConstructible^] from `k`. Returns:;; If an insert took place, then the iterator points to the newly inserted element. Otherwise, it points to the element with equivalent key. 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 overload only participates in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs and neither `iterator` nor `const_iterator` are implicitly convertible from `K`. 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.	要求：`value_type` 需从 `k` 处满足对容器的 https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[可原位构造^] 要求。返回：若执行了插入，则迭代器指向新插入的元素；否则指向等价的元素。抛出：若调用 `hasher` 以外的操作抛出异常，则函数无效果。说明：标准对 hint 的含义表述相当模糊。但使用它的唯一实际方式，也是 Boost.Unordered 唯一支持的方式，是将其指向具有相同键的现有元素。+ +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。+ +此重载仅在以下条件下参与重载决议：`Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef，且 `iterator` 和 `const_iterator` 均不能从 `K` 隐式转换。库假定 `Hash` 可同时以 `K` 和 `Key` 调用，且 `Pred` 是透明的。这实现了异构查找，从而避免了实例化 `Key` 类型对象的开销。
:888	---	---
	Insert Iterator Range	迭代器范围插入
	```c++ template<class InputIterator> void insert(InputIterator first, InputIterator last); ```	```c++ template<class inputiterator=""> void insert(InputIterator first, InputIterator last); ```</class>
:895	Inserts a range of elements into the container. Elements are inserted if and only if there is no element in the container with an equivalent key.	将元素范围插入容器中。仅当容器中不存在等价键的元素时，才会插入相应元素。
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[EmplaceConstructible^] into `X` from `*first`. Throws:;; When inserting a single element, 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.	要求：`value_type` 需从 `*first` 处满足对 `X` 的 https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[可原位构造^] 要求。抛出：当插入单个元素时，若调用 `hasher` 以外的操作抛出异常，则函数无效果。说明：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。
:904	---	---
	Insert Initializer List	初始化列表插入
	```c++ void insert(std::initializer_list<value_type>); ```	```c++ void insert(std::initializer_list<value_type>); ```</value_type>
:911	Inserts a range of elements into the container. Elements are inserted if and only if there is no element in the container with an equivalent key.	将元素范围插入容器中。仅当容器中不存在等价键的元素时，才会插入相应元素。
	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^] into the container. Throws:;; When inserting a single element, 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.	要求：`value_type` 需满足对容器而言的 https://en.cppreference.com/w/cpp/named_req/CopyInsertable[可复制插入^] 要求。抛出：当插入单个元素时，若调用 `hasher` 以外的操作抛出异常，则函数无效果。说明：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。
:920	---	---
	Extract by Iterator	通过迭代器提取
	```c++ node_type extract(const_iterator position); ```	```c++ node_type extract(const_iterator position); ```

Key	English	Chinese (Simplified Han script)
:732	Inserts an object, constructed with the arguments `args`, in the container if and only if there is no element in the container with an equivalent value.	当且仅当容器中没有等价值的元素时，插入一个使用参数 `args` 构造的对象。
:744	---	---
:751	Inserts an object, constructed with the arguments `args`, in the container if and only if there is no element in the container with an equivalent value.	当且仅当容器中没有等价值的元素时，插入一个使用参数 `args` 构造的对象。
:765	---	---
:772	Inserts `obj` in the container if and only if there is no element in the container with an equivalent key.	当且仅当容器中不存在等价键时，将 `obj` 对象插入到容器中。
:784	---	---
:791	Inserts `obj` in the container if and only if there is no element in the container with an equivalent key.	当且仅当容器中不存在等价键时，将 `obj` 对象插入到容器中。
:803	---	---
:810	Inserts an element constructed from `std::forward<K>(k)` in the container if and only if there is no element in the container with an equivalent key.	当且仅当容器中不存在等价键的元素时，插入一个由 `std::forward++<++K++>++(k)` 构造的元素。
:824	---	---
:832	`hint` is a suggestion to where the element should be inserted.	`hint` 是插入元素位置的建议。
:844	---	---
:851	Inserts `obj` in the container if and only if there is no element in the container with an equivalent key.	当且仅当容器中没有等价的键时，将 `obj` 插入容器。
:853	`hint` is a suggestion to where the element should be inserted.	`hint` 是一个关于元素应插入位置的建议。
:865	---	---
:872	Inserts an element constructed from `std::forward<K>(k)` in the container if and only if there is no element in the container with an equivalent key.	当且仅当容器中不存在等价键的元素时，插入一个由 `std::forward<k>(k)` 构造的元素。</k>
:874	`hint` is a suggestion to where the element should be inserted.	`hint` 是插入元素位置的建议。
:888	---	---
:895	Inserts a range of elements into the container. Elements are inserted if and only if there is no element in the container with an equivalent key.	将元素范围插入容器中。仅当容器中不存在等价键的元素时，才会插入相应元素。
:904	---	---
:911	Inserts a range of elements into the container. Elements are inserted if and only if there is no element in the container with an equivalent key.	将元素范围插入容器中。仅当容器中不存在等价键的元素时，才会插入相应元素。
:920	---	---
:933	---	---
:950	---	---
:957	If `nh` is empty, has no effect.	若 `nh` 为空节点，则此操作不产生任何效果。
:959	Otherwise inserts the element owned by `nh` if and only if there is no element in the container with an equivalent key.	否则，当且仅当容器中不存在等价键的元素时，才会插入 `nh` 所拥有的元素。
:975	---	---
:982	If `nh` is empty, has no effect.	若 `nh` 为空节点，则此操作不产生任何效果。
:984	Otherwise inserts the element owned by `nh` if and only if there is no element in the container with an equivalent key.	否则，当且仅当容器中不存在等价键的元素时，才会插入 `nh` 所拥有的元素。
:988	`hint` is a suggestion to where the element should be inserted.	`hint` 是插入元素位置的建议。

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