Boost Unordered Translation (zh_Hans)/Doc / Modules / Root / Pages / Reference / Unordered Map (adoc) — Chinese (Simplified Han script) @ Boost-Weblate

English

Effects:;; If the container does not already contain an elements with a key equivalent to `k`, inserts the value `std::pair<key_type const, mapped_type>(k, mapped_type())`. Returns:;; A reference to `x.second` where `x` is the element already in the container, or the newly inserted element with a key equivalent to `k`. 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. + + 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.

:1432 :1432
	English ---
	Chinese (Simplified Han script) --- 3/100 · 3 Needs editing
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	English contains
	Chinese (Simplified Han script) 包含 2/100 · 8 Needs editing
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	English ```c++ bool contains(const key_type& k) const; template<class K> bool contains(const K& k) const; ```
	Chinese (Simplified Han script) ```c++ bool contains(const key_type& k) const; template<class k=""> bool contains(const K& k) const; ```</class> 142/1230 · 123 Needs editing
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	English Returns:;; A boolean indicating whether or not there is an element with key equal to `key` in the container 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) 返回：;; 一个布尔值，指示容器中是否存在键等于 `key` 的元素。备注：;; 仅当 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef 时，`template<class k="">` 重载才会参与重载决议。库假定 `Hash` 可同时以 `K` 和 `Key` 类型调用，且 `Pred` 是透明的。这支持了异构查找，从而避免了实例化 `Key` 类型的开销。</class> 229/4740 · 474 Needs editing
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	English ---
	Chinese (Simplified Han script) --- 3/100 · 3 Needs editing
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	English equal_range
	Chinese (Simplified Han script) equal_range 11/110 · 11 Needs editing
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	English ```c++ std::pair<iterator, iterator> equal_range(const key_type& k); std::pair<const_iterator, const_iterator> equal_range(const key_type& k) const; template<class K> std::pair<iterator, iterator> equal_range(const K& k); template<class K> std::pair<const_iterator, const_iterator> equal_range(const K& k) const; ```
	Chinese (Simplified Han script) ```c++ std::pair<iterator, iterator=""> equal_range(const key_type& k); std::pair<const_iterator, const_iterator=""> equal_range(const key_type& k) const; template<class k=""> std::pair<iterator, iterator=""> equal_range(const K& k); template<class k=""> std::pair<const_iterator, const_iterator=""> equal_range(const K& k) const; ```</const_iterator,></class></iterator,></class></const_iterator,></iterator,> 454/3440 · 344 Needs editing
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	English Returns:;; A range containing all elements with key equivalent to `k`. If the container doesn't contain any such elements, returns `std::make_pair(b.end(), b.end())`. Notes:;; The `template<class K>` 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) 返回：;; 一个范围，包含所有键与 `k` 等价的元素。若容器中不包含任何此类元素，则返回 `std::make_pair(b.end(), b.end())`。备注：;; 仅当 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef 时，`template<class k="">` 重载才会参与重载决议。库假定 `Hash` 可同时以 `K` 和 `Key` 类型调用，且 `Pred` 是透明的。这支持了异构查找，从而避免了实例化 `Key` 类型的开销。</class> 275/5330 · 533 Needs editing
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	English ---
	Chinese (Simplified Han script) --- 3/100 · 3 Needs editing
378 :1463
	English operator++[++++]++
	Chinese (Simplified Han script) operator++[++++]++ 18/180 · 18 Needs editing
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	English ```c++ mapped_type& operator[](const key_type& k); mapped_type& operator[](key_type&& k); template<class K> mapped_type& operator[](K&& k); ```
	Chinese (Simplified Han script) ```c++ mapped_type& operator[](const key_type& k); mapped_type& operator[](key_type&& k); template<class k=""> mapped_type& operator[](K&& k); ```</class> 186/1430 · 143 Needs editing
380 :1471
	English Effects:;; If the container does not already contain an elements with a key equivalent to `k`, inserts the value `std::pair<key_type const, mapped_type>(k, mapped_type())`. Returns:;; A reference to `x.second` where `x` is the element already in the container, or the newly inserted element with a key equivalent to `k`. 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. + + 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) 效果：;; 如果容器中尚不存在键与 `k` 等价的元素，则插入值 `std::pair<key_type const,="" mapped_type="">(k, mapped_type())`。返回：;; 指向 `x.second` 的引用，其中 `x` 是容器中已存在的元素，或者是键与 `k` 等价的新插入元素。抛出：;; 如果除调用 `hasher` 之外的操作抛出异常，则该函数无效。备注：;; 可能使迭代器失效，但仅当插入导致负载因子大于或等于最大负载因子时才会发生。此外，指向元素的指针和引用永远不会失效。另外，仅当 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef 时，`template<class k="">` 重载才会参与重载决议。库假定 `Hash` 可同时以 `K` 和 `Key` 类型调用，且 `Pred` 是透明的。这支持了异构查找，从而避免了实例化 `Key` 类型的开销。</class></key_type> 466/9900 · 990 Needs editing
:1480 :1480
	English ---
	Chinese (Simplified Han script) --- 3/100 · 3 Needs editing
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	English at
	Chinese (Simplified Han script) at 2/100 · 2 Needs editing
383 :1483
	English ```c++ mapped_type& at(const key_type& k); const mapped_type& at(const key_type& k) const; template<class K> mapped_type& at(const K& k); template<class K> const mapped_type& at(const K& k) const; ```
	Chinese (Simplified Han script) ```c++ mapped_type& at(const key_type& k); const mapped_type& at(const key_type& k) const; template<class k=""> mapped_type& at(const K& k); template<class k=""> const mapped_type& at(const K& k) const; ```</class></class> 254/2000 · 200 Needs editing
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	English Returns:;; A reference to `x.second` where `x` is the (unique) element whose key is equivalent to `k`. Throws:;; An exception object of type `std::out_of_range` if no such element is present. Notes:;; The `template<class K>` 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) 返回：;; 指向 `x.second` 的引用，其中 `x` 是键与 `k` 等价的（唯一）元素。抛出：;; 如果不存在这样的元素，则抛出 `std::out_of_range` 类型的异常对象。备注：;; 仅当 `Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef 时，`template<class k="">` 重载才会参与重载决议。库假定 `Hash` 可同时以 `K` 和 `Key` 类型调用，且 `Pred` 是透明的。这支持了异构查找，从而避免了实例化 `Key` 类型的开销。</class> 293/5580 · 558 Needs editing
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	English ---
	Chinese (Simplified Han script) --- 3/100 · 3 Needs editing
386 :1497
	English Bucket Interface
	Chinese (Simplified Han script) 桶接口 3/160 · 16 Needs editing
387 :1499
	English bucket_count
	Chinese (Simplified Han script) bucket_count 12/120 · 12 Needs editing
388 :1500
	English ```c++ size_type bucket_count() const noexcept; ```
	Chinese (Simplified Han script) ```c++ size_type bucket_count() const noexcept; ``` 51/510 · 51 Needs editing

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