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:980 :980

	English Inserts a new element into the container if there is no existing element with key `k` contained within it. 106/10000 · 106
:982 :982

	English If there is an existing element with key `k` this function does nothing. 72/10000 · 72
235 :985

	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_node_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++ 579/10000 · 579
:995 :995

	English value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<Key>(k)), std::forward_as_tuple(std::forward<Args>(args)...)) 133/10000 · 133
:1000 :1000

	English value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<K>(k)), std::forward_as_tuple(std::forward<Args>(args)...)) ``` 135/10000 · 135
238 :1005

	English unlike xref:#unordered_node_map_emplace[emplace], which simply forwards all arguments to ``value_type``'s constructor. 118/10000 · 118
:1007 :1007

	English Can invalidate iterators, but only if the insert causes the load to be greater than the maximum load. 101/10000 · 101
:1009 :1009

	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. 453/10000 · 453
:1011 :1011

	English -- 2/10000 · 2
:1013 :1013

	English --- 3/10000 · 3
243 :1015

	English try_emplace with Hint 21/10000 · 21
244 :1016

	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); ``` 308/10000 · 308
:1025 :1025

	English Inserts a new element into the container if there is no existing element with key `k` contained within it. 106/10000 · 106
:1027 :1027

	English If there is an existing element with key `k` this function does nothing. 72/10000 · 72
247 :1029

	English `hint` is a suggestion to where the element should be inserted. This implementation ignores it. 96/10000 · 96
248 :1032

	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_node_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++ 510/10000 · 510
:1040 :1040

	English value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<Key>(k)), std::forward_as_tuple(std::forward<Args>(args)...)) 133/10000 · 133
:1045 :1045

	English value_type(std::piecewise_construct, std::forward_as_tuple(std::forward<K>(k)), std::forward_as_tuple(std::forward<Args>(args)...)) ``` 135/10000 · 135
251 :1050

	English unlike xref:#unordered_node_map_emplace_hint[emplace_hint], which simply forwards all arguments to ``value_type``'s constructor. 128/10000 · 128
:1052 :1052

	English Can invalidate iterators, but only if the insert causes the load to be greater than the maximum load. 101/10000 · 101

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