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Key	English	Chinese (Simplified Han script)
	Constructs an empty container with at least `n` buckets, using `hf` as the hash function, `eql` as the key equality predicate and `a` as the allocator, and inserts the elements from `[f, l)` into it.	构造一个至少包含 `n` 个桶的空容器，使用 `hf` 作为哈希函数，`eql` 作为键相等谓词，`a` 作为分配器，并将 `[f, l)` 范围内的元素插入其中。
:355	Requires:;; If the defaults are used, `hasher`, `key_equal` and `allocator_type` need to be https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[DefaultConstructible^].	要求：;; 如果使用默认值，则 `hasher`、`key_equal` 和 `allocator_type` 需要是 https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[DefaultConstructible^]。
:357	---	---
	Copy Constructor	复制构造函数
	```c++ unordered_flat_set(unordered_flat_set const& other); ```	```c++ unordered_flat_set(unordered_flat_set const& other); ```
	The copy constructor. Copies the contained elements, hash function, predicate and allocator.	复制构造函数。复制所包含的元素、哈希函数、谓词和分配器。
	If `Allocator::select_on_container_copy_construction` exists and has the right signature, the allocator will be constructed from its result.	如果 `Allocator::select_on_container_copy_construction` 存在且具有正确的签名，则分配器将根据其结果进行构造。
	Requires:;; `value_type` is copy constructible	要求：;; `value_type` 可复制构造。
:371	---	---
	Move Constructor	移动构造函数
	```c++ unordered_flat_set(unordered_flat_set&& other); ```	```c++ unordered_flat_set(unordered_flat_set&& other); ```
	The move constructor. The internal bucket array of `other` is transferred directly to the new container. The hash function, predicate and allocator are moved-constructed from `other`. If statistics are xref:unordered_flat_set_boost_unordered_enable_stats[enabled], transfers the internal statistical information from `other` and calls `other.reset_stats()`.	移动构造函数。`other` 的内部桶数组将直接转移给新容器。哈希函数、谓词和分配器从 `other` 进行移动构造。如果启用了统计信息（xref:unordered_flat_set_boost_unordered_enable_stats[enabled]），则从 `other` 转移内部统计信息，并调用 `other.reset_stats()`。
:383	---	---
	Iterator Range Constructor with Allocator	带分配器的迭代器区间构造函数
	```c++ template<class InputIterator> unordered_flat_set(InputIterator f, InputIterator l, const allocator_type& a); ```	```c++ template<class inputiterator=""> unordered_flat_set(InputIterator f, InputIterator l, const allocator_type& a); ```</class>
	Constructs an empty container using `a` as the allocator, with the default hash function and key equality predicate and inserts the elements from `[f, l)` into it.	构造一个以 `a` 为分配器的空容器，使用默认的哈希函数和键相等谓词，并将 `[f, l)` 范围内的元素插入其中。
:394	Requires:;; `hasher`, `key_equal` need to be https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[DefaultConstructible^].	要求：;; `hasher` 和 `key_equal` 需要是 https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[DefaultConstructible^]。
:396	---	---
	Allocator Constructor	分配器构造函数
	```c++ explicit unordered_flat_set(Allocator const& a); ```	```c++ explicit unordered_flat_set(Allocator const& a); ```
	Constructs an empty container, using allocator `a`.	构造一个空容器，使用分配器 `a`。
:405	---	---
	Copy Constructor with Allocator	带分配器的复制构造函数
	```c++ unordered_flat_set(unordered_flat_set const& other, Allocator const& a); ```	```c++ unordered_flat_set(unordered_flat_set const& other, Allocator const& a); ```
	Constructs a container, copying ``other``'s contained elements, hash function, and predicate, but using allocator `a`.	构造一个容器，复制 `other` 所包含的元素、哈希函数和谓词，但使用分配器 `a`。
:414	---	---
	Move Constructor with Allocator	带分配器的移动构造函数
	```c++ unordered_flat_set(unordered_flat_set&& other, Allocator const& a); ```	```c++ unordered_flat_set(unordered_flat_set&& other, Allocator const& a); ```
	If `a == other.get_allocator()`, the elements of `other` are transferred directly to the new container; otherwise, elements are moved-constructed from those of `other`. The hash function and predicate are moved-constructed from `other`, and the allocator is copy-constructed from `a`. If statistics are xref:unordered_flat_set_boost_unordered_enable_stats[enabled], transfers the internal statistical information from `other` iff `a == other.get_allocator()`, and always calls `other.reset_stats()`.	如果 `a == other.get_allocator()`，则 `other` 的元素会直接转移给新容器；否则，将根据 `other` 中的元素进行移动构造。哈希函数和谓词从 `other` 进行移动构造，而分配器则从 `a` 进行复制构造。如果启用了统计信息（xref:unordered_flat_set_boost_unordered_enable_stats[enabled]），则仅当 `a == other.get_allocator()` 时才从 `other` 转移内部统计信息，并且总是调用 `other.reset_stats()`。
:428	---	---
	Move Constructor from concurrent_flat_set	从 concurrent_flat_set 移动构造

	English	Chinese (Simplified Han script)	Actions
	Globally define this macro to enable xref:reference/stats.adoc#stats[statistics calculation] for the container. Note that this option decreases the overall performance of many operations.	全局定义此宏以启用容器的 xref:reference/stats.adoc#stats[统计信息计算]。请注意，此选项会降低许多操作的整体性能。
	Convertible to `const_iterator`.	可转换为 `const_iterator`。
	```c++ explicit unordered_flat_set(size_type n, const hasher& hf = hasher(), const key_equal& eql = key_equal(), const allocator_type& a = allocator_type()); ```	```c++ explicit unordered_flat_set(size_type n, const hasher& hf = hasher(), const key_equal& eql = key_equal(), const allocator_type& a = allocator_type()); ```
	Constructs an empty container with at least `n` buckets, using `hf` as the hash function, `eql` as the key equality predicate, and `a` as the allocator.	构造一个至少包含 `n` 个桶的空容器，使用 `hf` 作为哈希函数，`eql` 作为键相等谓词，`a` 作为分配器。
	Iterator Range Constructor	迭代器范围构造函数
	Constructs an empty container with at least `n` buckets, using `hf` as the hash function, `eql` as the key equality predicate and `a` as the allocator, and inserts the elements from `[f, l)` into it.	构造一个至少包含 `n` 个桶的空容器，使用 `hf` 作为哈希函数，`eql` 作为键相等谓词，`a` 作为分配器，并将 `[f, l)` 范围内的元素插入其中。
	Copy Constructor	复制构造函数
	```c++ unordered_flat_set(unordered_flat_set const& other); ```	```c++ unordered_flat_set(unordered_flat_set const& other); ```
	The copy constructor. Copies the contained elements, hash function, predicate and allocator.	复制构造函数。复制所包含的元素、哈希函数、谓词和分配器。
	If `Allocator::select_on_container_copy_construction` exists and has the right signature, the allocator will be constructed from its result.	如果 `Allocator::select_on_container_copy_construction` 存在且具有正确的签名，则分配器将根据其结果进行构造。
	Requires:;; `value_type` is copy constructible	要求：;; `value_type` 可复制构造。
	Move Constructor	移动构造函数
	```c++ unordered_flat_set(unordered_flat_set&& other); ```	```c++ unordered_flat_set(unordered_flat_set&& other); ```
	The move constructor. The internal bucket array of `other` is transferred directly to the new container. The hash function, predicate and allocator are moved-constructed from `other`. If statistics are xref:unordered_flat_set_boost_unordered_enable_stats[enabled], transfers the internal statistical information from `other` and calls `other.reset_stats()`.	移动构造函数。`other` 的内部桶数组将直接转移给新容器。哈希函数、谓词和分配器从 `other` 进行移动构造。如果启用了统计信息（xref:unordered_flat_set_boost_unordered_enable_stats[enabled]），则从 `other` 转移内部统计信息，并调用 `other.reset_stats()`。
	```c++ template<class InputIterator> unordered_flat_set(InputIterator f, InputIterator l, const allocator_type& a); ```	```c++ template<class inputiterator=""> unordered_flat_set(InputIterator f, InputIterator l, const allocator_type& a); ```</class>
	Constructs an empty container using `a` as the allocator, with the default hash function and key equality predicate and inserts the elements from `[f, l)` into it.	构造一个以 `a` 为分配器的空容器，使用默认的哈希函数和键相等谓词，并将 `[f, l)` 范围内的元素插入其中。
	```c++ unordered_flat_set(unordered_flat_set const& other, Allocator const& a); ```	```c++ unordered_flat_set(unordered_flat_set const& other, Allocator const& a); ```
	Constructs a container, copying ``other``'s contained elements, hash function, and predicate, but using allocator `a`.	构造一个容器，复制 `other` 所包含的元素、哈希函数和谓词，但使用分配器 `a`。
	Move Constructor with Allocator	带分配器的移动构造函数
	If `a == other.get_allocator()`, the elements of `other` are transferred directly to the new container; otherwise, elements are moved-constructed from those of `other`. The hash function and predicate are moved-constructed from `other`, and the allocator is copy-constructed from `a`. If statistics are xref:unordered_flat_set_boost_unordered_enable_stats[enabled], transfers the internal statistical information from `other` iff `a == other.get_allocator()`, and always calls `other.reset_stats()`.	如果 `a == other.get_allocator()`，则 `other` 的元素会直接转移给新容器；否则，将根据 `other` 中的元素进行移动构造。哈希函数和谓词从 `other` 进行移动构造，而分配器则从 `a` 进行复制构造。如果启用了统计信息（xref:unordered_flat_set_boost_unordered_enable_stats[enabled]），则仅当 `a == other.get_allocator()` 时才从 `other` 转移内部统计信息，并且总是调用 `other.reset_stats()`。
	Move construction from a xref:#concurrent_flat_set[`concurrent_flat_set`]. The internal bucket array of `other` is transferred directly to the new container. The hash function, predicate and allocator are moved-constructed from `other`. If statistics are xref:unordered_flat_set_boost_unordered_enable_stats[enabled], transfers the internal statistical information from `other` and calls `other.reset_stats()`.	从 xref:#concurrent_flat_set[`concurrent_flat_set`] 进行移动构造。`other` 的内部桶数组将直接转移给新容器。哈希函数、谓词和分配器从 `other` 进行移动构造。如果启用了统计信息（xref:unordered_flat_set_boost_unordered_enable_stats[enabled]），则从 `other` 转移内部统计信息，并调用 `other.reset_stats()`。
	Initializer List Constructor	初始化列表构造函数
	Constructs an empty container with at least `n` buckets, using `hf` as the hash function, `eql` as the key equality predicate and `a`, and inserts the elements from `il` into it.	构造一个至少包含 `n` 个桶的空容器，使用 `hf` 作为哈希函数，`eql` 作为键相等谓词，`a` 作为分配器，并将 `il` 中的元素插入其中。
	Bucket Count Constructor with Allocator	带分配器的桶数构造函数
	Constructs an empty container with at least `n` buckets, using `hf` as the hash function, the default hash function and key equality predicate and `a` as the allocator.	构造一个至少包含 `n` 个桶的空容器，使用 `hf` 作为哈希函数，默认的哈希函数和键相等谓词，并以 `a` 作为分配器。
	Postconditions:;; `size() == 0` Requires:;; `hasher` and `key_equal` need to be https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[DefaultConstructible^].	后置条件：;; `size() == 0` 要求：;; `hasher` 和 `key_equal` 需要是 https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[DefaultConstructible^]。
	```c++ unordered_flat_set(size_type n, hasher const& hf, allocator_type const& a); ```	```c++ unordered_flat_set(size_type n, hasher const& hf, allocator_type const& a); ```
	Postconditions:;; `size() == 0` Requires:;; `key_equal` needs to be https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[DefaultConstructible^].	后置条件：;; `size() == 0` 要求：;; `key_equal` 需要是 https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[DefaultConstructible^]。
	Iterator Range Constructor with Bucket Count and Allocator	带桶数和分配器的迭代器范围构造函数
	Constructs an empty container with at least `n` buckets, using `a` as the allocator and default hash function and key equality predicate, and inserts the elements from `[f, l)` into it.	构造一个至少包含 `n` 个桶的空容器，使用 `a` 作为分配器以及默认的哈希函数和键相等谓词，并将 `[f, l)` 范围内的元素插入其中。

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