2. Boost Unordered Translation (zh_Hans)
3. Doc / Modules / Root / Pages / Reference / Concurrent Flat Set (adoc)
4. Chinese (Simplified Han script)
5. Zen

:420 :420
	English Postconditions:;; `size() == 0` 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^].
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 后置条件：`size() == 0` 要求：若使用默认参数，则 `hasher`、`key_equal` 和 `allocator_type` 需满足 https://en.cppreference.com/w/cpp/named_req/DefaultConstructible[可默认构造^] 要求。 154/2120 · 212 Needs editing
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	English ```c++ concurrent_flat_set& operator=(concurrent_flat_set&& other) noexcept(boost::allocator_traits<Allocator>::is_always_equal::value || boost::allocator_traits<Allocator>::propagate_on_container_move_assignment::value); ``` The move assignment operator. Destroys previously existing elements, swaps the hash function and predicate from `other`, and move-assigns the allocator from `other` if `Alloc::propagate_on_container_move_assignment` exists and `Alloc::propagate_on_container_move_assignment::value` is `true`. If at this point the allocator is equal to `other.get_allocator()`, the internal bucket array of `other` is transferred directly to `*this`; otherwise, inserts move-constructed copies of the elements of `other`. If statistics are xref:concurrent_flat_set_boost_unordered_enable_stats[enabled], transfers the internal statistical information from `other` iff the final allocator is equal to `other.get_allocator()`, and always calls `other.reset_stats()`.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — ```c++ concurrent_flat_set&amp; operator=(concurrent_flat_set&amp;&amp; other) noexcept(boost::allocator_traits<allocator>::is_always_equal::value || boost::allocator_traits<allocator>::propagate_on_container_move_assignment::value); ``` 移动赋值运算符。销毁先前已存在的元素，交换当前对象与 other 的哈希函数和谓词；若 Alloc::propagate_on_container_move_assignment 存在且其值为 true，则从 other 移动赋值分配器。若此时分配器与 other.get_allocator() 相等，other 的内部桶数组将直接转移给 *this；否则，插入由 other 元素移动构造的副本。若统计功能已通过 xref:concurrent_flat_set_boost_unordered_enable_stats [enabled]，仅当最终分配器与 other.get_allocator() 相等时，从 other 转移内部统计信息，且始终调用 other.reset_stats()。</allocator></allocator> 613/9730 · 973 Needs editing
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	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^] Concurrency:;; Blocking on `*this`.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 前置要求：;; `value_type` 需满足 https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^] 并发特性：;; 阻塞 `*this` 119/1390 · 139 Needs editing
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	English Returns:;; The number of elements visited (0 or 1). Notes:;; The `template<class K, class F>` 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.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回值：;; 访问到的元素数量（0 或 1）。 注意：;; 仅当 `Hash::is_transparent` 与 `Pred::is_transparent` 为合法成员别名时，`template<class k,="" class="" f="">` 重载版本才会参与重载决议。库假定 `Hash` 可同时接收 `K` 与 `Key` 类型调用，且 `Pred` 是透明的。这支持异构查找，避免了实例化 `Key` 类型对象的开销。</class> 226/4270 · 427 Needs editing
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	English Requires:;; `FwdIterator` is a https://en.cppreference.com/w/cpp/named_req/ForwardIterator[LegacyForwardIterator^] ({cpp}11 to {cpp}17), or satisfies https://en.cppreference.com/w/cpp/iterator/forward_iterator[std::forward_iterator^] ({cpp}20 and later). For `K` = `std::iterator_traits<FwdIterator>::value_type`, either `K` is `key_type` or else `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs. In the latter case, 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. Returns:;; The number of elements visited.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 前置要求：;; `FwdIterator` 是一个传统前向迭代器（C++11 至 C++17），或满足 `std::forward_iterator` 要求（C++20 及更高版本）。 对于 `K = std::iterator_traits<fwditerator>::value_type`，要么 `K` 是 `key_type`，要么 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员别名。 在后一种情况下，库假定 `Hash` 可同时接收 `K` 与 `Key` 类型调用，且 `Pred` 是透明的。这支持异构查找，避免了实例化 `Key` 类型对象的开销。 返回值：;; 访问到的元素数量。</fwditerator> 345/6900 · 690 Needs editing
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	English Throws:;; Depending on the exception handling mechanism of the execution policy used, may call `std::terminate` if an exception is thrown within `f`. Notes:;; Only available in compilers supporting C++17 parallel algorithms. + + These overloads only participate in overload resolution if `std::is_execution_policy_v<std::remove_cvref_t<ExecutionPolicy>>` is `true`. + + Unsequenced execution policies are not allowed.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 抛出异常：;; 根据所使用执行策略的异常处理机制，若 `f` 内部抛出异常，则可能调用 `std::terminate`。 注意：;; 仅在支持 C++17 并行算法的编译器中可用。 仅当 `std::is_execution_policy_v<std::remove_cvref_t<executionpolicy>&gt;` 为 `true` 时，这些重载版本才会参与重载决议。 不允许使用无序执行策略。</std::remove_cvref_t<executionpolicy> 242/4170 · 417 Needs editing
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	English Returns:;; `false` iff `f` ever returns `false`. Throws:;; Depending on the exception handling mechanism of the execution policy used, may call `std::terminate` if an exception is thrown within `f`. Notes:;; Only available in compilers supporting C++17 parallel algorithms. + + These overloads only participate in overload resolution if `std::is_execution_policy_v<std::remove_cvref_t<ExecutionPolicy>>` is `true`. + + Unsequenced execution policies are not allowed. + + Parallelization implies that execution does not necessary finish as soon as `f` returns `false`, and as a result `f` may be invoked with further elements for which the return value is also `false`.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回值：;; 当且仅当 `f` 返回过 `false` 时，返回 `false`。 抛出异常：;; 根据所使用执行策略的异常处理机制，若 `f` 内部抛出异常，则可能调用 `std::terminate`。 注意：;; 仅在支持 C++17 并行算法的编译器中可用。 仅当 `std::is_execution_policy_v<std::remove_cvref_t<executionpolicy>&gt;` 为 `true` 时，这些重载版本才会参与重载决议。 不允许使用无序执行策略。 并行化意味着执行流程不会在 `f` 返回 `false` 时立即终止，因此 `f` 可能还会被后续元素调用并同样返回 `false`。</std::remove_cvref_t<executionpolicy> 352/6680 · 668 Needs editing
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	English Requires:;; `value_type` is constructible from `args`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 前置要求：;; `value_type` 可由参数 `args` 构造。 返回值：;; 成功插入元素时返回 `true`。 并发特性：;; 若触发重哈希，则会阻塞当前对象 `*this`。 注意：;; 若执行重哈希，将使指向元素的指针和引用失效。 123/2290 · 229 Needs editing
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	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^]. Returns:;; `true` if an insert took place. + Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 前置要求：;; `value_type` 满足可复制插入要求。 返回值：;; 成功插入元素时返回 `true`。 并发特性：;; 若触发重哈希，则会阻塞当前对象 `*this`。 注意：;; 若执行重哈希，将使指向元素的指针和引用失效。 118/2810 · 281 Needs editing
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	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 前置要求：;; `value_type` 满足可移动插入要求。 返回值：;; 成功插入元素时返回 `true`。 并发特性：;; 若触发重哈希，则会阻塞当前对象 `*this`。 注意：;; 若执行重哈希，将使指向元素的指针和引用失效。 118/2790 · 279 Needs editing
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	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[EmplaceConstructible^] from `k`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + This 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.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 前置要求：;; `value_type` 可通过 `k` 原位构造。 返回值：;; 成功插入元素时返回 `true`。 并发特性：;; 若触发重哈希，则会阻塞当前对象 `*this`。 注意：;; 若执行重哈希，将使指向元素的指针和引用失效。 仅当 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员别名时，该重载版本才参与重载决议。 库假定 `Hash` 可同时接收 `K` 与 `Key` 类型调用，且 `Pred` 是透明的。这支持异构查找，避免实例化 `Key` 类型对象的开销。 273/6430 · 643 Needs editing
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	English Requires:;; `value_type` is constructible from `args`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + The interface is exposition only, as C++ does not allow to declare a parameter `f` after a variadic parameter pack.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 前置要求：;; `value_type` 可由参数 `args` 构造。 返回值：;; 成功插入元素时返回 `true`。 并发特性：;; 若触发重哈希，则会阻塞当前对象 `*this`。 注意：;; 若执行重哈希，将使指向元素的指针和引用失效。 该接口仅为说明性设计，因为 C++ 不允许在可变参数包之后声明参数 `f`。 162/3490 · 349 Needs editing
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	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^]. Returns:;; `true` if an insert took place. + Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 前置要求：;; `value_type` 满足可复制插入要求。 返回值：;; 成功插入元素时返回 `true`。 并发特性：;; 若触发重哈希，则会阻塞当前对象 `*this`。 注意：;; 若执行重哈希，将使指向元素的指针和引用失效。 118/2810 · 281 Needs editing
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	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; `true` if an insert took place. + Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 前置要求：;; `value_type` 满足可移动插入要求。 返回值：;; 成功插入元素时返回 `true`。 并发特性：;; 若触发重哈希，则会阻塞当前对象 `*this`。 注意：;; 若执行重哈希，将使指向元素的指针和引用失效。 118/2810 · 281 Needs editing
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	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[EmplaceConstructible^] from `k`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + These 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.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 前置要求：;; `value_type` 可通过 `k` 原位构造。 返回值：;; 成功插入元素时返回 `true`。 并发特性：;; 若触发重哈希，则会阻塞当前对象 `*this`。 注意：;; 若执行重哈希，将使指向元素的指针和引用失效。 仅当 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员别名时，该组重载才参与重载决议。 库假定 `Hash` 可同时接收 `K` 与 `Key` 类型调用，且 `Pred` 是透明的。这支持异构查找，避免实例化 `Key` 类型对象的开销。 272/6440 · 644 Needs editing
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	English Requires:;; `value_type` is constructible from `args`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + The interface is exposition only, as C++ does not allow to declare parameters `f1` and `f2` after a variadic parameter pack.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 前置要求：;; `value_type` 可由参数 `args` 构造。 返回值：;; 成功插入元素时返回 `true`。 并发特性：;; 若触发重哈希，则会阻塞当前对象 `*this`。 注意：;; 若执行重哈希，将使指向元素的指针和引用失效。 该接口仅为说明性设计，因为 C++ 不允许在可变参数包之后声明参数 `f1` 和 `f2`。 170/3580 · 358 Needs editing
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	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^]. Returns:;; `true` if an insert took place. + Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 前置要求：;; `value_type` 满足可复制插入要求。 返回值：;; 成功插入元素时返回 `true`。 并发特性：;; 若触发重哈希，则会阻塞当前对象 `*this`。 注意：;; 若执行重哈希，将使指向元素的指针和引用失效。 118/2810 · 281 Needs editing
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	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]. Returns:;; `true` if an insert took place. + Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 要求：;; `value_type` 满足 https://en.cppreference.com/w/cpp/named_req/MoveInsertable[MoveInsertable^]。 返回值：;; 执行插入操作则返回 `true`。 并发特性：;; 对 `*this` 执行重哈希时会阻塞。 备注：;; 执行重哈希后，指向元素的指针和引用将会失效。 181/2810 · 281 Needs editing
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	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[EmplaceConstructible^] from `k`. Returns:;; `true` if an insert took place. Concurrency:;; Blocking on rehashing of `*this`. Notes:;; Invalidates pointers and references to elements if a rehashing is issued. + + These 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.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 要求：;; `value_type` 可由 `k` 进行 https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[EmplaceConstructible^] 构造。 返回值：;; 执行插入操作则返回 `true`。 并发特性：;; 对 `*this` 执行重哈希时会阻塞。 备注：;; 执行重哈希后，指向元素的指针和引用将会失效。 这些重载仅当 `Hash::is_transparent` 与 `Pred::is_transparent` 为合法成员类型别名时才参与重载决议。标准库假定 `Hash` 可同时接受 `K` 与 `Key` 类型调用，且 `Pred` 是透明的。这实现了异构查找，避免了实例化 `Key` 类型对象的开销。 358/6440 · 644 Needs editing
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	English Returns:;; The number of elements erased (0 or 1). 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. 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.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回值：;; 删除的元素数量（0 或 1）。 抛出：;; 仅当 `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` 为合法成员类型别名时才参与重载决议。标准库假定 `Hash` 可同时接受 `K` 与 `Key` 类型调用，且 `Pred` 是透明的。这实现了异构查找，避免了实例化 `Key` 类型对象的开销。</class> 256/4960 · 496 Needs editing