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Concurrency:;; Blocking on `x` and `y`. Notes:;; Behavior is undefined if the two tables don't have equivalent equality predicates.
Concurrency:;; Blocking on `x` and `y`. Notes:;; Behavior is undefined if the two tables don't have equivalent equality predicates.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。
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Returns `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).
Returns `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`x`中每个元素在`y`中都存在键相同、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 concurrent_flat_map<Key, T, Hash, Pred, Alloc>& x, const concurrent_flat_map<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 concurrent_flat_map<Kkey, T, Hash, Pred, Alloc>&t,="" hash,="" pred,="" alloc="">&amp; x, const concurrent_flat_map<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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Concurrency:;; Blocking on `x` and `y`. Notes:;; Behavior is undefined if the two tables don't have equivalent equality predicates.
Concurrency:;; Blocking on并发：阻塞 `x` and和 `y`. Notes:;; Behavior is undefined if the two tables don't have equivalent equality predicates.。
说明：若两个容器的相等判断谓词不一致，行为未定义。
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Returns `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).
Returns `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，`y` 中均存在拥有相同键、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 concurrent_flat_map<Key, T, Hash, Pred, Alloc>& x, const concurrent_flat_map<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 concurrent_flat_map<Kkey, T, Hash, Pred, Alloc>&t,="" hash,="" pred,="" alloc="">&amp; x, const concurrent_flat_map<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-to-alloc-type__
__iter-to-alloc-type__
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__iter-mapped-type__
__iter-mapped-type__
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__iter-key-type__
__iter-key-type__
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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 table 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，指向由该推导指引所推导容器类型的 `size_­++_++type` member type of the table 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该推导指引包含 `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，且为此参数推导出的类型不符合输入迭代器的要求。 - 该推导指引包含 `Allocator` 模板参数，且为该参数推导出的类型不符合分配器要求。 - 该推导指引包含 `Hash` 模板参数，且为该参数推导出的类型为整型或符合分配器要求。 - 该推导指引包含 `Pred` 模板参数，且为该参数推导出的类型符合分配器要求。
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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:满足以下任一条件时，推导指引不参与重载决议：
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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 table. Notes:;; Only available if xref:reference/stats.adoc#stats[statistics calculation] is xref:concurrent_flat_map_boost_unordered_enable_stats[enabled].
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].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。
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