Boost Unordered Translation (zh_Hans)/Doc / Modules / Root / Pages / Reference / Unordered Flat Map (adoc) — Chinese (Simplified Han script) @ Boost-Weblate: Move-inserts all the elements from `source` whose key is not …

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Key	English	Chinese (Simplified Han script)
	Swaps the contents of the container with the parameter.	将容器的内容与参数进行交换。
:1123	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，否则不会抛出异常。
:1128	---	---
	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` 对象 `x`，擦除该元素并返回 `x`。
:1138	---	---
	clear	清空
	```c++ void clear() noexcept; ```	```c++ void clear() noexcept; ```
	Erases all elements in the container.	擦除容器中的所有元素。
	Postconditions:;; `size() == 0`, `max_load() >= max_load_factor() * bucket_count()`	后置条件：`size() == 0`，`max_load() >= max_load_factor() * bucket_count()`
:1150	---	---
	merge	合并
	```c++ template<class H2, class P2> void merge(unordered_flat_map<Key, T, H2, P2, Allocator>& source); template<class H2, class P2> void merge(unordered_flat_map<Key, T, H2, P2, Allocator>&& source); ```	```c++ template<class h2,="" class="" p2=""> void merge(unordered_flat_map<key, t,="" h2,="" p2,="" allocator="">& source); template<class h2,="" class="" p2=""> void merge(unordered_flat_map<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`.	尝试将 `source` 中所有键尚未出现在 `this` 内的元素移动插入到 `this` 中，同时将这些元素从 `source` 移除。
:1162	---	---
	Observers	观察器
	get_allocator	get++_++allocator
	``` allocator_type get_allocator() const noexcept; ```	``` allocator_type get_allocator() const noexcept; ```
	Returns:;; The container's allocator.	返回：容器的分配器。
:1174	---	---
	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。
:1184	---	---
	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。
:1194	---	---
	Lookup	查找

	English	Chinese (Simplified Han script)	Actions
	```c++ iterator end() noexcept; const_iterator end() const noexcept; ```	```c++ iterator end() noexcept; const_iterator end() const noexcept; ```
	Returns:;; An iterator which refers to the past-the-end value for the container.	返回：指向容器尾后位置的迭代器。
	cbegin	cbegin
	Postconditions:;; `size() == 0`, `max_load() >= max_load_factor() * bucket_count()`	后置条件：`size() == 0`，`max_load() >= max_load_factor() * bucket_count()`
	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:;; This function is similiar to xref:#unordered_flat_map_emplace[emplace], with the difference that no `value_type` is constructed if there is an element with an equivalent key; otherwise, the construction is of the form: + + -- ```c++	返回：若执行了插入，则返回类型中的 `bool` 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。注意：此函数与 xref:#unordered_flat_map_emplace[emplace] 类似，区别在于：若存在等价的键，则不构造 `value_type`；否则，构造形式如下：+ + -- `c++`
	cend	cend
	```c++ const_iterator cend() const noexcept; ```	```c++ const_iterator cend() const noexcept; ```
	Returns:;; A `const_iterator` which refers to the past-the-end value for the container.	返回：指向容器尾后位置的 `const_iterator`。
	Size and Capacity	大小与容量
	```c++ size_type size() const noexcept; ```	```c++ size_type size() const noexcept; ```
	Returns:;; `std::distance(begin(), end())`	返回：`std::distance(begin(), end())`
	```c++ template<class H2, class P2> void merge(unordered_flat_map<Key, T, H2, P2, Allocator>& source); template<class H2, class P2> void merge(unordered_flat_map<Key, T, H2, P2, Allocator>&& source); ```	```c++ template<class h2,="" class="" p2=""> void merge(unordered_flat_map<key, t,="" h2,="" p2,="" allocator="">& source); template<class h2,="" class="" p2=""> void merge(unordered_flat_map<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`.	尝试将 `source` 中所有键尚未出现在 `this` 内的元素移动插入到 `this` 中，同时将这些元素从 `source` 移除。
	Observers	观察器
	``` allocator_type get_allocator() const noexcept; ```	``` allocator_type get_allocator() const noexcept; ```
	Returns:;; The container's allocator.	返回：容器的分配器。
	hash_function	哈希函数
	emplace_hint	emplace++_++hint
	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。
	unlike xref:#unordered_flat_map_emplace[emplace], which simply forwards all arguments to ``value_type``'s constructor.	与 xref:#unordered_flat_map_emplace[emplace] 不同，后者只是将所有参数转发给 `value_type` 的构造函数。
	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);	```c++ iterator find(const key_type& k); const_iterator find(const key_type& k) const; template<class k=""> iterator find(const K& k);</class>
	```c++ template<class... Args> iterator try_emplace(const_iterator hint, const key_type& k, Args&&... args); template<class... Args> iterator try_emplace(const_iterator hint, key_type&& k, Args&&... args); template<class K, class... Args> iterator try_emplace(const_iterator hint, K&& k, Args&&... args); ```	```c++ template<class... args=""> iterator try_emplace(const_iterator hint, const key_type& k, Args&&... args); template<class... args=""> iterator try_emplace(const_iterator hint, key_type&& k, Args&&... args); template<class k,="" class...="" args=""> iterator try_emplace(const_iterator hint, K&& k, Args&&... args); ```</class></class...></class...>
	count	count
	Returns:;; An iterator pointing to an element with key equivalent to `k`, or `end()` if no such element exists. Notes:;; 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，若不存在这样的元素则返回 `end()`。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。</class>

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Chinese (Simplified Han script) 91 characters editedCurrent translationState: Translated

06/05/2026

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Chinese (Simplified Han script) 119 characters editedPrevious translationState: Needs editing (Needs rewriting)

06/05/2026

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:1160

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doc/modules/ROOT/pages/reference/unordered_flat_map_zh_Hans.adoc, string 286

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