Boost Unordered Translation (zh_Hans)/Doc / Modules / Root / Pages / Reference / Unordered Flat Set (adoc) — Chinese (Simplified Han script) @ Boost-Weblate: If `Allocator::propagate_on_container_swap` is declared and `Allocator::propagate_on_container

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Key	English	Chinese (Simplified Han script)
	Returns:;; An opaque object implicitly convertible to the `iterator` or `const_iterator` immediately following `position` prior to the erasure. Throws:;; Nothing. Notes:;; The opaque object returned must only be discarded or immediately converted to `iterator` or `const_iterator`.	返回：;; 一个不透明对象，可隐式转换为擦除前紧接 `position` 之后的 `iterator` 或 `const_iterator`。抛出：;; 无。备注：;; 返回的不透明对象只能被丢弃或立即转换为 `iterator` 或 `const_iterator`。
:889	---	---
	Erase by Key	通过键擦除
	```c++ size_type erase(const key_type& k); template<class K> size_type erase(K&& k); ```	```c++ size_type erase(const key_type& k); template<class k=""> size_type erase(K&& k); ```</class>
	Erase all elements with key equivalent to `k`.	删除所有键与 `k` 等价的元素。
	Returns:;; The number of elements erased. 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 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.	返回：;; 被删除的元素数量。抛出：;; 仅当由 `hasher` 或 `key_equal` 抛出异常时才会抛出异常。备注：;; `template<class k="">` 重载仅当 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef，并且 `K` 不能隐式转换为 `iterator` 或 `const_iterator` 时，才会参与重载决议。库假定 `Hash` 可同时以 `K` 和 `Key` 类型调用，且 `Pred` 是透明的。这支持了异构查找，从而避免了实例化 `Key` 类型的开销。</class>
:904	---	---
	Erase Range	范围擦除
	```c++ iterator erase(const_iterator first, const_iterator last); ```	```c++ iterator erase(const_iterator first, const_iterator last); ```
	Erases the elements in the range from `first` to `last`.	删除从 `first` 到 `last` 范围内的元素。
	Returns:;; The iterator following the erased elements - i.e. `last`. Throws:;; Nothing in this implementation (neither the `hasher` nor the `key_equal` objects are called).	返回：;; 被删除元素之后的迭代器，即 `last`。抛出：;; 在此实现中不抛出任何异常（既不会调用 `hasher` 也不会调用 `key_equal` 对象）。
:918	---	---
	swap	交换
	```c++ void swap(unordered_flat_set& other) noexcept(boost::allocator_traits<Allocator>::is_always_equal::value \|\| boost::allocator_traits<Allocator>::propagate_on_container_swap::value); ```	```c++ void swap(unordered_flat_set& other) noexcept(boost::allocator_traits<allocator>::is_always_equal::value \|\| boost::allocator_traits<allocator>::propagate_on_container_swap::value); ```</allocator></allocator>
	Swaps the contents of the container with the parameter.	交换容器与参数的内容。
:929	If `Allocator::propagate_on_container_swap` is declared and `Allocator::propagate_on_container_swap::value` is `true` then the containers' allocators are swapped. Otherwise, swapping with unequal allocators results in undefined behavior.	如果 `Allocator::propagate_on_container_swap` 已声明且 `Allocator::propagate_on_container_swap::value` 为 `true`，则交换两个容器的分配器。否则，使用不相等的分配器进行交换将导致未定义行为。
	Throws:;; Nothing unless `key_equal` or `hasher` throw on swapping.	抛出：;; 除非 `key_equal` 或 `hasher` 在交换时抛出异常，否则不抛出任何异常。
:934	---	---
	pull	pull
	```c++ init_type pull(const_iterator position); ```	```c++ init_type pull(const_iterator position); ```
	Move-constructs an `init_value` `x` from the element pointed to by `position`, erases the element and returns `x`.	从 `position` 指向的元素移动构造一个 `init_value` `x`，删除该元素并返回 `x`。
:944	---	---
	clear	清空
	```c++ void clear() noexcept; ```	```c++ void clear() noexcept; ```
	Erases all elements in the container.	清除容器中的所有元素。
	Postconditions:;; `size() == 0`, `max_load() >= max_load_factor() * bucket_count()`	Postconditions:;; `size() == 0`, `max_load() >= max_load_factor() * bucket_count()`
:956	---	---
	merge	合并
	```c++ template<class H2, class P2> void merge(unordered_flat_set<Key, T, H2, P2, Allocator>& source); template<class H2, class P2> void merge(unordered_flat_set<Key, T, H2, P2, Allocator>&& source); ```	```c++ template<class h2,="" class="" p2=""> void merge(unordered_flat_set<key, t,="" h2,="" p2,="" allocator="">& source); template<class h2,="" class="" p2=""> void merge(unordered_flat_set<key, t,="" 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`.	移动插入 `source` 中所有键尚未存在于 `*this` 中的元素，并从 `source` 中删除它们。
:968	---	---

Key	English	Chinese (Simplified Han script)
:810	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具有等价键的元素时，才将 `obj` 插入容器中。
:812	`hint` is a suggestion to where the element should be inserted. This implementation ignores it.	`hint` 是关于元素应该插入位置的一个提示。此实现会忽略它。
:815	Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. 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, pointers and references, but only if the insert causes the load to be greater than the maximum load.	要求：;; `value_type` 必须是 https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]。返回：;; 如果进行了插入，则返回类型的 `bool` 分量为 `true`。如果进行了插入，则迭代器指向新插入的元素；否则，指向具有等价键的元素。抛出：;; 如果除调用 `hasher` 之外的操作抛出异常，则该函数无效。备注：;; 可能会使迭代器、指针和引用失效，但仅当插入导致负载大于最大负载时才会发生。
:822	---	---
:829	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具有等价键的元素时，才插入一个从 `std::forward<k>(k)` 构造的元素。</k>
:831	`hint` is a suggestion to where the element should be inserted. This implementation ignores it.	`hint` 是关于元素应该插入位置的一个提示。此实现会忽略它。
:834	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, pointers and references, but only if the insert causes the load to be greater than the maximum load. + + 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` 可以从 `k` 进行 https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[EmplaceConstructible^]。返回：;; 如果进行了插入，则返回类型的 bool 分量为 true。如果进行了插入，则迭代器指向新插入的元素；否则，指向具有等价键的元素。抛出：;; 如果除调用 `hasher` 之外的操作抛出异常，则该函数无效。备注：;; 可能会使迭代器、指针和引用失效，但仅当插入导致负载大于最大负载时才会发生。此重载仅当 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef，并且 `K` 不能隐式转换为 `iterator` 或 `const_iterator` 时，才会参与重载决议。库假定 `Hash` 可同时以 `K` 和 `Key` 类型调用，且 `Pred` 是透明的。这支持了异构查找，从而避免了实例化 `Key` 类型的开销。
:843	---	---
:850	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.	将一系列元素插入容器中。当且仅当容器中不存在具有等价键的元素时，才插入该元素。
:857	---	---
:864	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.	将一系列元素插入容器中。当且仅当容器中不存在具有等价键的元素时，才插入该元素。
:871	---	---
:889	---	---
:904	---	---
:918	---	---
:929	If `Allocator::propagate_on_container_swap` is declared and `Allocator::propagate_on_container_swap::value` is `true` then the containers' allocators are swapped. Otherwise, swapping with unequal allocators results in undefined behavior.	如果 `Allocator::propagate_on_container_swap` 已声明且 `Allocator::propagate_on_container_swap::value` 为 `true`，则交换两个容器的分配器。否则，使用不相等的分配器进行交换将导致未定义行为。
:934	---	---
:944	---	---
:956	---	---
:968	---	---
:980	---	---
:990	---	---

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