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223 :938

	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/EmplaceConstructible[EmplaceConstructible^] into `X` from `*first`. Throws:;; When inserting a single element, 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. 480/10000 · 480
:944 :944

	English --- 3/10000 · 3
225 :946

	English Insert Initializer List 23/10000 · 23
226 :947

	English ```c++ void insert(std::initializer_list<value_type>); ``` 58/10000 · 58
:951 :951

	English Inserts a range of elements into the container. Elements are inserted if and only if there is no element in the container with an equivalent key. 145/10000 · 145
228 :954

	English Requires:;; `value_type` is https://en.cppreference.com/w/cpp/named_req/CopyInsertable[CopyInsertable^] into the container. Throws:;; When inserting a single element, 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. 464/10000 · 464
:960 :960

	English --- 3/10000 · 3
230 :962

	English try_emplace 11/10000 · 11
231 :963

	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) ``` 295/10000 · 295
:972 :972

	English Inserts a new element into the container if there is no existing element with key `k` contained within it. 106/10000 · 106
:974 :974

	English If there is an existing element with key `k` this function does nothing. 72/10000 · 72
234 :977

	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_map_emplace[emplace] except the `value_type` is constructed using: + + -- ```c++ 468/10000 · 468
:986 :986

	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
:991 :991

	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
237 :996

	English instead of xref:#unordered_map_emplace[emplace] which simply forwards all arguments to ``value_type``'s constructor. 116/10000 · 116
:998 :998

	English Can invalidate iterators, but only if the insert causes the load factor to be greater to or equal to the maximum load factor. 125/10000 · 125
:1000 :1000

	English Pointers and references to elements are never invalidated. 58/10000 · 58
:1002 :1002

	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. -- 456/10000 · 456
:1005 :1005

	English --- 3/10000 · 3
242 :1007

	English try_emplace with Hint 21/10000 · 21

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