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

English

Returns:;; The `bool` component of the return type is `true` if an insert took place. + + 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:;; This function is similiar to xref:#unordered_flat_map_emplace[emplace], with the difference that no `value_type` is constructed if there is an element with an equivalent key; otherwise, the construction is of the form: + + -- ```c++

212 :901
	English ```c++ template<class... Args> std::pair<iterator, bool> try_emplace(const key_type& k, Args&&... args); template<class... Args> std::pair<iterator, bool> try_emplace(key_type&& k, Args&&... args); template<class K, class... Args> std::pair<iterator, bool> try_emplace(K&& k, Args&&... args); ```
	Chinese (Simplified Han script) ```c++ template<class... args=""> std::pair<iterator, bool=""> try_emplace(const key_type& k, Args&&... args); template<class... args=""> std::pair<iterator, bool=""> try_emplace(key_type&& k, Args&&... args); template<class k,="" class...="" args=""> std::pair<iterator, bool=""> try_emplace(K&& k, Args&&... args); ```</iterator,></class></iterator,></class...></iterator,></class...> 430/2960 · 296 Needs editing
:910 :910
	English Inserts a new element into the container if there is no existing element with key `k` contained within it.
	Chinese (Simplified Han script) 如果容器中不存在键为 `k` 的元素，则向容器中插入一个新元素。 32/1060 · 106 Needs editing
:912 :912
	English If there is an existing element with key `k` this function does nothing.
	Chinese (Simplified Han script) 若容器中不存在键为 `k` 的元素，则插入一个新元素。 27/720 · 72 Needs editing
215 :915
	English Returns:;; The `bool` component of the return type is `true` if an insert took place. + + 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:;; This function is similiar to xref:#unordered_flat_map_emplace[emplace], with the difference that no `value_type` is constructed if there is an element with an equivalent key; otherwise, the construction is of the form: + + -- ```c++
	Chinese (Simplified Han script) 返回：若执行了插入，则返回类型中的 `bool` 分量为 `true`。+ +若执行了插入，则迭代器指向新插入的元素；否则指向等价的元素。抛出：若调用 `hasher` 以外的操作抛出异常，则函数无效果。注意：此函数与 xref:#unordered_flat_map_emplace[emplace] 类似，区别在于：若存在等价的键，则不构造 `value_type`；否则，构造形式如下：+ + -- `c++` 208/5790 · 579 Needs editing
:925 :925
	English value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<Key>(k)), std::forward_as_tuple(std::forward<Args>(args)...))
	Chinese (Simplified Han script) value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<key>(k)), std::forward_as_tuple(std::forward<args>(args)...))</args></key> 146/1330 · 133 Needs editing
:930 :930
	English value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<K>(k)), std::forward_as_tuple(std::forward<Args>(args)...)) ```
	Chinese (Simplified Han script) value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<k>(k)), std::forward_as_tuple(std::forward<args>(args)...)) ```</args></k> 146/1350 · 135 Needs editing
218 :935
	English unlike xref:#unordered_flat_map_emplace[emplace], which simply forwards all arguments to ``value_type``'s constructor.
	Chinese (Simplified Han script) 与 xref:#unordered_flat_map_emplace[emplace] 不同，后者只是将所有参数转发给 `value_type` 的构造函数。 79/1180 · 118 Needs editing
:937 :937
	English Can invalidate iterators pointers and references, but only if the insert causes the load to be greater than the maximum load.
	Chinese (Simplified Han script) 可能会导致迭代器、指针和引用失效，但仅当插入操作导致负载因子超过最大负载因子时才会发生。 44/1250 · 125 Needs editing
:939 :939
	English The `template<class K, class\... Args>` 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.
	Chinese (Simplified Han script) `template<class k,="" args="">` 重载仅在以下条件下参与重载决议：`Hash::is_transparent` 和 `Pred::is_transparent` 是有效的成员 typedef，且 `iterator` 和 `const_iterator` 均不能从 `K` 隐式转换。库假定 `Hash` 可同时以 `K` 和 `Key` 调用，且 `Pred` 是透明的。这实现了异构查找，从而避免实例化 `Key` 类型对象的开销。</class> 241/4530 · 453 Needs editing
:941 :941
	English --
	Chinese (Simplified Han script) -- 2/100 · 2 Needs editing
:943 :943
	English ---
	Chinese (Simplified Han script) --- 3/100 · 3 Needs editing
223 :945
	English try_emplace with Hint
	Chinese (Simplified Han script) 带提示的 try++_++emplace 20/210 · 21 Needs editing
224 :946
	English ```c++ template<class... Args> iterator try_emplace(const_iterator hint, const key_type& k, Args&&... args); template<class... Args> iterator try_emplace(const_iterator hint, key_type&& k, Args&&... args); template<class K, class... Args> iterator try_emplace(const_iterator hint, K&& k, Args&&... args); ```
	Chinese (Simplified Han script) ```c++ template<class... args=""> iterator try_emplace(const_iterator hint, const key_type& k, Args&&... args); template<class... args=""> iterator try_emplace(const_iterator hint, key_type&& k, Args&&... args); template<class k,="" class...="" args=""> iterator try_emplace(const_iterator hint, K&& k, Args&&... args); ```</class></class...></class...> 397/3080 · 308 Needs editing
:955 :955
	English Inserts a new element into the container if there is no existing element with key `k` contained within it.
	Chinese (Simplified Han script) 如果容器中不存在键为 `k` 的元素，则向容器中插入一个新元素。 32/1060 · 106 Needs editing
:957 :957
	English If there is an existing element with key `k` this function does nothing.
	Chinese (Simplified Han script) 如果存在键为 `k` 的元素，则该函数不执行任何操作。 27/720 · 72 Needs editing
227 :959
	English `hint` is a suggestion to where the element should be inserted. This implementation ignores it.
	Chinese (Simplified Han script) `hint` 是一个关于元素应插入位置的建议。此实现会忽略该建议。 33/960 · 96 Needs editing
228 :962
	English 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:;; This function is similiar to xref:#unordered_flat_map_emplace_hint[emplace_hint], with the difference that no `value_type` is constructed if there is an element with an equivalent key; otherwise, the construction is of the form: + + -- ```c++
	Chinese (Simplified Han script) 返回：若执行了插入，则迭代器指向新插入的元素；否则指向等价的元素。抛出：若调用 `hasher` 以外的操作抛出异常，则函数无效果。注意：此函数与 xref:#unordered_flat_map_emplace_hint[emplace_hint] 类似，区别在于：若存在等价的键，则不构造 `value_type`；否则，构造形式如下：+ + -- `c++` 182/5100 · 510 Needs editing
:970 :970
	English value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<Key>(k)), std::forward_as_tuple(std::forward<Args>(args)...))
	Chinese (Simplified Han script) value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<key>(k)), std::forward_as_tuple(std::forward<args>(args)...))</args></key> 146/1330 · 133 Needs editing
:975 :975
	English value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<K>(k)), std::forward_as_tuple(std::forward<Args>(args)...)) ```
	Chinese (Simplified Han script) value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<k>(k)), std::forward_as_tuple(std::forward<args>(args)...)) ```</args></k> 146/1350 · 135 Needs editing
231 :980
	English unlike xref:#unordered_flat_map_emplace_hint[emplace_hint], which simply forwards all arguments to ``value_type``'s constructor.
	Chinese (Simplified Han script) 而非像 xref:#unordered_flat_map_emplace_hint[emplace_hint] 只是简单地将所有参数转发给 value_type 的构造函数。 87/1280 · 128 Needs editing

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