2. Boost Unordered Translation (zh_Hans)
3. Chinese (Simplified Han script)
4. Zen

412 :1459
	English Effects:;; `x.swap(y)` Throws:;; Doesn't throw an exception unless it is thrown by the copy constructor or copy assignment operator of `key_equal` or `hasher`. Notes:;; The exception specifications aren't quite the same as the C++11 standard, as the equality predicate and hash function are swapped using their copy constructors.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 效果：`x.swap(y)` 抛出：除非 `key_equal` 或 `hasher` 的拷贝构造函数或拷贝赋值运算符抛出异常，否则不抛出任何异常。 注意：异常规范与 C++11 标准不完全相同，因为相等谓词和哈希函数是使用其拷贝构造函数进行交换的。 129/3290 · 329 Needs editing
:1547 :1547
	English Concurrency:;; Blocking on `x` and `y`. Notes:;; Behavior is undefined if the two tables don't have equivalent equality predicates.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 并发：;; 阻塞`x`与`y`。 备注：;; 若两个哈希表的相等谓词不兼容，行为未定义。 44/1310 · 131 Needs editing
413 :1574
	English Requires:;; `n` shall be in the range `[0, bucket_count())`. Returns:;; A constant local iterator pointing the first element in the bucket with index `n`.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 要求：;; `n` 应在 `[0, bucket_count())` 范围内。 返回：;; 指向索引为 `n` 的桶中第一个元素的常量局部迭代器。 73/1540 · 154 Needs editing
415 :1672
	English Throws:;; The function has no effect if an exception is thrown, unless it is thrown by the table's hash function or comparison function. Concurrency:;; Blocking on `*this`.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 异常：若抛出异常，函数无任何效果（由容器的哈希函数或比较函数抛出的异常除外）。 并发：阻塞当前对象 `*this`。 58/1720 · 172 Needs editing
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	English Returns:;; The number of erased elements. Notes:;; Equivalent to: + + ```c++ auto original_size = c.size(); for (auto i = c.begin(), last = c.end(); i != last; ) { if (pred(*i)) { i = c.erase(i); } else { ++i; } } return original_size - c.size(); ``` + Note that the references passed to `pred` are non-const.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回：被擦除的元素数量。 注意：等价于： ```c++auto original_size = c.size();for (auto i = c.begin(), last = c.end(); i != last; ) {if (pred(*i)) {i = c.erase(i);} else {++i;}}return original_size - c.size(); ``` 注意，传递给 `pred` 的引用是非常量的。 220/3090 · 309 Needs editing
417 :1679
	English Returns:;; The number of elements with key equivalent to `k` (0 or 1). 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. + + In the presence of concurrent insertion operations, the value returned may not accurately reflect the true state of the table right after execution.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回值：;; 与键 `k` 等价的元素数量（值为 0 或 1）。 注意：;; 仅当 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员类型别名时，`template<class k="">` 重载版本才参与重载决议。库假定 `Hash` 可同时接受 `K` 类型与 `Key` 类型作为参数，且 `Pred` 是透明的。这支持异构查找，从而避免实例化 `Key` 类型对象带来的性能开销。 在存在并发插入操作的情况下，返回的值可能无法精确反映执行后容器的真实状态。</class> 269/5900 · 590 Needs editing
417 :1585
	English Requires:;; `n` shall be in the range `[0, bucket_count())`. Returns:;; A constant local iterator pointing the 'one past the end' element in the bucket with index `n`.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 要求：;; `n` 应在 `[0, bucket_count())` 范围内。 返回：;; 指向索引为 `n` 的桶中“尾后”元素的常量局部迭代器。 74/1670 · 167 Needs editing
418 :1561
	English Returns:;; The maximum number of elements the table can hold without rehashing, assuming that no further elements will be erased. Note:;; After construction, rehash or clearance, the table's maximum load is at least `max_load_factor() * bucket_count()`. This number may decrease on erasure under high-load conditions. + + In the presence of concurrent insertion operations, the value returned may not accurately reflect the true state of the table right after execution.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回值：;; 表在不进行重哈希的情况下可容纳的最大元素数量（假定不会再删除任何元素）。 注意：;; 构造、重哈希或清空后，表的最大负载量至少为 `max_load_factor() * bucket_count()`。在高负载条件下执行删除操作时，该数值可能会降低。 注意：;; 若存在并发插入操作，返回值可能无法精确反映执行后表的真实状态。 171/4700 · 470 Needs editing
420 :1685
	English Returns:;; A statistical description of the insertion and lookup operations performed by the table so far. Notes:;; Only available if xref:reference/stats.adoc#stats[statistics calculation] is xref:concurrent_flat_map_boost_unordered_enable_stats[enabled].
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回值：容器截至目前执行的插入与查找操作的统计描述信息。 说明：仅当**启用统计计算**时，该函数才可用。 53/2560 · 256 Needs editing
421 :1695
	English Returns:;; A boolean indicating whether or not there is an element with key equal to `k` in the table. 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. + + In the presence of concurrent insertion operations, the value returned may not accurately reflect the true state of the table right after execution.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回值：;; 布尔值，表示表中是否存在键等于 `k` 的元素。 注意：;; 仅当 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员类型别名时，`template<class k="">` 重载版本才参与重载决议。库假定 `Hash` 可同时接受 `K` 类型与 `Key` 类型作为参数，且 `Pred` 是透明的。这支持异构查找，从而避免实例化 `Key` 类型对象带来的性能开销。 在存在并发插入操作的情况下，返回的值可能无法精确反映执行后容器的真实状态。</class> 268/6230 · 623 Needs editing
424 :1696
	English Effects:;; Sets to zero the internal statistics kept by the table. Notes:;; Only available if xref:reference/stats.adoc#stats[statistics calculation] is xref:concurrent_flat_map_boost_unordered_enable_stats[enabled].
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 效果：将容器维护的内部统计数据归零。 说明：仅当**启用统计计算**时，该函数才可用。 43/2160 · 216 Needs editing
425 :1592
	English Effects:;; `x.swap(y)` Throws:;; Nothing unless `key_equal` or `hasher` throw on swapping.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 效果：`x.swap(y)` 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。 65/900 · 90 Needs editing
426 :1518
	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[EmplaceConstructible^] from `(std::remove_const<key_type>::type&&, std::remove_const<mapped_type>::type&&)`. `x.key_equal()` is functionally equivalent to `other.key_equal()`. Note:;; If the archive was saved using a release of Boost prior to Boost 1.84, the configuration macro `BOOST_UNORDERED_ENABLE_SERIALIZATION_COMPATIBILITY_V0` has to be globally defined for this operation to succeed; otherwise, an exception is thrown.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 要求：`value_type` 必须可以从 `(std::remove_const<key_type>::type&amp;&amp;, std::remove_const<mapped_type>::type&amp;&amp;)` 进行 https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[可原位构造^]。`x.key_equal()` 在功能上必须等价于 `other.key_equal()`。 注意：如果归档是使用 Boost 1.84 之前版本的 Boost 保存的，则必须全局定义配置宏 `BOOST_UNORDERED_ENABLE_SERIALIZATION_COMPATIBILITY_V0` 才能使此操作成功；否则，将抛出异常。</mapped_type></key_type> 391/5200 · 520 Needs editing
429 :1594
	English Throws:;; The function has no effect if an exception is thrown, unless it is thrown by the table's hash function or comparison function. Concurrency:;; Blocking on `*this`.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 抛出异常：;; 若抛出异常，函数无任何效果（由表的哈希函数或比较函数抛出的异常除外）。 并发：;; 阻塞 `*this`。 61/1720 · 172 Needs editing
430 :1607
	English Returns:;; The number of erased elements. Notes:;; Equivalent to: + + ```c++ auto original_size = c.size(); for (auto i = c.begin(), last = c.end(); i != last; ) { if (pred(*i)) { i = c.erase(i); } else { ++i; } } return original_size - c.size(); ``` + Note that the references passed to `pred` are non-const.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回：被擦除的元素数量。 注意：等价于： ```c++ auto original_size = c.size(); for (auto i = c.begin(), last = c.end(); i != last; ) { if (pred(*i)) { i = c.erase(i); } else { ++i; } } return original_size - c.size(); ``` 注意，传递给 `pred` 的引用是非常量的。 259/3090 · 309 Needs editing
434 :1607
	English Returns:;; A statistical description of the insertion and lookup operations performed by the table so far. Notes:;; Only available if xref:reference/stats.adoc#stats[statistics calculation] is xref:concurrent_node_set_boost_unordered_enable_stats[enabled].
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回值：;; 截至目前，由该表执行的插入与查找操作的统计信息描述。 注意：;; 仅当**统计计算功能启用**时可用。 58/2560 · 256 Needs editing
438 :1618
	English Effects:;; Sets to zero the internal statistics kept by the table. Notes:;; Only available if xref:reference/stats.adoc#stats[statistics calculation] is xref:concurrent_node_set_boost_unordered_enable_stats[enabled].
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 效果：;; 将该哈希表所维护的内部统计数据清零。 注意：;; 仅当xref:reference/stats.adoc#stats[statistics calculation]（统计计算功能）被xref:concurrent_node_set_boost_unordered_enable_stats[enabled]（启用状态）激活时，本函数才可使用。 177/2160 · 216 Needs editing
:1758 :1758
	English Concurrency:;; Blocking on `x` and `y`. Notes:;; Behavior is undefined if the two tables don't have equivalent equality predicates.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 并发：阻塞 `x` 和 `y`。 说明：若两个容器的相等判断谓词不一致，行为未定义。 42/1310 · 131 Needs editing
443 :1755
	English Returns:;; The maximum number of elements the table can hold without rehashing, assuming that no further elements will be erased. Note:;; After construction, rehash or clearance, the table's maximum load is at least `max_load_factor() * bucket_count()`. This number may decrease on erasure under high-load conditions. + + In the presence of concurrent insertion operations, the value returned may not accurately reflect the true state of the table right after execution.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 返回值：;; 表在不进行重哈希的情况下可容纳的最大元素数量（假设不会再删除任何元素）。 注意：;; 构造、重哈希或清空后，表的最大装载量至少为 `max_load_factor() * bucket_count()`。在高负载条件下执行删除操作时，该数值可能会降低。 在存在并发插入操作的情况下，返回的值可能无法精确反映执行后容器的真实状态。 171/4700 · 470 Needs editing
:1773 :1773
	English Concurrency:;; Blocking on `x` and `y`. Notes:;; Behavior is undefined if the two tables don't have equivalent equality predicates.
	Chinese (Simplified Han script) ↹ ↵ NBS … 「 」 『 』 ﹙-﹚ ‐ – — 并发：阻塞`x`和`y`。 说明：若两个容器的相等判定谓词不一致，则行为未定义。 40/1310 · 131 Needs editing