2. Boost Unordered Translation (zh_Hans)
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:1111 :1111
	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<Key>(k)), std::forward_as_tuple(std::forward<M>(obj))) 126/10000 · 126
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<K>(k)), std::forward_as_tuple(std::forward<M>(obj))) ``` 128/10000 · 128
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — `hint` is a suggestion to where the element should be inserted. 63/10000 · 63
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Returns:;; If an insert took place, then the iterator points to the newly inserted element. Otherwise, it points to the element with equivalent key. Throws:;; If an exception is thrown by an operation other than a call to `hasher` the function has no effect. Notes:;; The standard is fairly vague on the meaning of the hint. But the only practical way to use it, and the only way that Boost.Unordered supports is to point to an existing element with the same key. + + Can invalidate iterators, but only if the insert causes the load factor to be greater to or equal to the maximum load factor. + + Pointers and references to elements are never invalidated. + + The `template<class K, class M>` 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. 1018/10000 · 1018
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — --- 3/10000 · 3
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Extract by Iterator 19/10000 · 19
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — ```c++ node_type extract(const_iterator position); ``` 54/10000 · 54
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Removes the element pointed to by `position`. 45/10000 · 45
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Returns:;; A `node_type` owning the element. Notes:;; A node extracted using this method can be inserted into a compatible `unordered_multimap`. 144/10000 · 144
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — --- 3/10000 · 3
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Extract by Key 14/10000 · 14
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — ```c++ node_type extract(const key_type& k); template<class K> node_type extract(K&& k); ``` 92/10000 · 92
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Removes an element with key equivalent to `k`. 46/10000 · 46
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Returns:;; A `node_type` owning the element if found, otherwise an empty `node_type`. Throws:;; Only throws an exception if it is thrown by `hasher` or `key_equal`. Notes:;; A node extracted using this method can be inserted into a compatible `unordered_multimap`. + + The `template<class K>` overload only participates in overload resolution if `Hash::is_transparent` and `Pred::is_transparent` are valid member typedefs and neither `iterator` nor `const_iterator` are implicitly convertible from `K`. 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. 707/10000 · 707
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — --- 3/10000 · 3
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Insert with `node_handle` 25/10000 · 25
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — ```c++ insert_return_type insert(node_type&& nh); ``` 53/10000 · 53
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — If `nh` is empty, has no effect. 32/10000 · 32
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Otherwise inserts the element owned by `nh` if and only if there is no element in the container with an equivalent key. 119/10000 · 119
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	English ↹ ↵ NBS … “ ” ‘ ’ ﹙-﹚ ‐ – — Requires:;; `nh` is empty or `nh.get_allocator()` is equal to the container's allocator. Returns:;; If `nh` was empty, returns an `insert_return_type` with: `inserted` equal to `false`, `position` equal to `end()` and `node` empty. + + Otherwise if there was already an element with an equivalent key, returns an `insert_return_type` with: `inserted` equal to `false`, `position` pointing to a matching element and `node` contains the node from `nh`. + + Otherwise if the insertion succeeded, returns an `insert_return_type` with: `inserted` equal to `true`, `position` pointing to the newly inserted element and `node` empty. Throws:;; If an exception is thrown by an operation other than a call to `hasher` the function has no effect. Notes:;; Can invalidate iterators, but only if the insert causes the load factor to be greater to or equal to the maximum load factor. + + Pointers and references to elements are never invalidated. + + This can be used to insert a node extracted from a compatible `unordered_multimap`. 1022/10000 · 1022