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Swaps the contents of `x` and `y`.
Swaps the contents of交换 `x` and和 `y`. 的内容。
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```c++ template<class Key, class T, class Hash, class Pred, class Alloc> void swap(unordered_node_set<Key, T, Hash, Pred, Alloc>& x, unordered_node_set<Key, T, Hash, Pred, Alloc>& y) noexcept(noexcept(x.swap(y))); ```
```c++ template<class Kkey,="" class T, class Hash, class Pred, class A="" t,="" hash,="" pred,="" alloc=""> void swap(unordered_node_set<Kkey, T, Hash, Pred, Alloc>&t,="" hash,="" pred,="" alloc="">&amp; x, unordered_node_set<Kkey, T, Hash, Pred, Alloc>&t,="" hash,="" pred,="" alloc="">&amp; y) noexcept(noexcept(x.swap(y))); ```</key,></key,></class>
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Swap
Swap交换
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Notes:;; Behavior is undefined if the two containers don't have equivalent equality predicates.
Notes:;; Behavior is undefined if the two containers don't have equivalent equality predicates.注意：如果两个容器不具有等价的相等谓词，则行为未定义。
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Return `false` if `x.size() == y.size()` and for every element in `x`, there is an element in `y` with the same key, with an equal value (using `operator==` to compare the value types).
Return `false` if若 `x.size() == y.size()` and for every element in `x`, there is an element in `y` with the same key, with an equal value (using `operator==` to compare the value types).且对于 `x` 中的每个元素，在 `y` 中均存在一个具有相同键且值相等（使用 `operator==` 比较值类型）的元素，则返回 `false`。
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```c++ template<class Key, class T, class Hash, class Pred, class Alloc> bool operator!=(const unordered_node_set<Key, T, Hash, Pred, Alloc>& x, const unordered_node_set<Key, T, Hash, Pred, Alloc>& y); ```
```c++ template<class Kkey,="" class T, class Hash, class Pred, class A="" t,="" hash,="" pred,="" alloc=""> bool operator!=(const unordered_node_set<Kkey, T, Hash, Pred, Alloc>&t,="" hash,="" pred,="" alloc="">&amp; x, const unordered_node_set<Kkey, T, Hash, Pred, Alloc>& y); ```t,="" hash,="" pred,="" alloc="">&amp; y); ```</key,></key,></class>
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operator!
operator!
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---
---
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Notes:;; Behavior is undefined if the two containers don't have equivalent equality predicates.
Notes:;; Behavior is undefined if the two containers don't have equivalent equality predicates.注意：如果两个容器不具有等价的相等谓词，则行为未定义。
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Return `true` if `x.size() == y.size()` and for every element in `x`, there is an element in `y` with the same key, with an equal value (using `operator==` to compare the value types).
Return `true` if若 `x.size() == y.size()` and for every element in `x`, there is an element in `y` with the same key, with an equal value (using `operator==` to compare the value types).且对于 `x` 中的每个元素，在 `y` 中均存在一个具有相同键且值相等（使用 `operator==` 比较值类型）的元素，则返回 `true`。
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```c++ template<class Key, class T, class Hash, class Pred, class Alloc> bool operator==(const unordered_node_set<Key, T, Hash, Pred, Alloc>& x, const unordered_node_set<Key, T, Hash, Pred, Alloc>& y); ```
```c++ template<class Kkey,="" class T, class Hash, class Pred, class A="" t,="" hash,="" pred,="" alloc=""> bool operator==(const unordered_node_set<Kkey, T, Hash, Pred, Alloc>&t,="" hash,="" pred,="" alloc="">&amp; x, const unordered_node_set<Kkey, T, Hash, Pred, Alloc>& y); ```t,="" hash,="" pred,="" alloc="">&amp; y); ```</key,></key,></class>
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operator
operator
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Equality Comparisons
Equality Comparisons相等性比较
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__iter-value-type__
__iter-value-type__
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A `size_­type` parameter type in a deduction guide refers to the `size_­type` member type of the container type deduced by the deduction guide. Its default value coincides with the default value of the constructor selected.
A推导指引中的 `size_­type` parameter type in a deduction guide refers to the参数类型指的是由该推导指引所推导出的容器类型的 `size_­type` member type of the container type deduced by the deduction guide. Its default value coincides with the default value of the constructor selected.成员类型。其默认值与所选构造函数的默认值一致。
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- It has an `InputIterator` template parameter and a type that does not qualify as an input iterator is deduced for that parameter. - It has an `Allocator` template parameter and a type that does not qualify as an allocator is deduced for that parameter. - It has a `Hash` template parameter and an integral type or a type that qualifies as an allocator is deduced for that parameter. - It has a `Pred` template parameter and a type that qualifies as an allocator is deduced for that parameter.
- It has an它具有一个 `InputIterator` template parameter and a type that does not qualify as an input iterator is deduced for that parameter. - It has an `Allocator` template parameter and a type that does not qualify as an allocator is deduced for that parameter. - It has a `Hash` template parameter and an integral type or a type that qualifies as an allocator is deduced for that parameter. - It has a `Pred` template parameter and a type that qualifies as an allocator is deduced for that parameter.模板参数，并且为该参数推导出的类型不符合输入迭代器的要求。
- 它具有一个 `Allocator` 模板参数，并且为该参数推导出的类型不符合分配器的要求。
- 它具有一个 `Hash` 模板参数，并且为该参数推导出的类型是整数类型或符合分配器的要求。
- 它具有一个 `Pred` 模板参数，并且为该参数推导出的类型符合分配器的要求。
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A deduction guide will not participate in overload resolution if any of the following are true:
A deduction guide will not participate in overload resolution if any of the following are true:如果以下任何一条件为真，则推导指引将不参与重载决议：
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Deduction Guides
Deduction Guides推导指引
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---
---
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Effects:;; Sets to zero the internal statistics kept by the container. Notes:;; Only available if xref:reference/stats.adoc#stats[statistics calculation] is xref:unordered_node_set_boost_unordered_enable_stats[enabled].
Effects:;; Sets to zero the internal statistics kept by the container. Notes:;; Only available if效果：将容器内部维护的统计信息归零。
注意：仅在 xref:reference/stats.adoc#stats[statistics calculation] is统计计算] 通过 xref:unordered_node_set_boost_unordered_enable_stats[enabled].`BOOST_UNORDERED_ENABLE_STATS`] 启用时才可用。
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