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:984 :984

	English 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
247 :986

	English If there is already an element in the container with an equivalent key has no effect on `nh` (i.e. `nh` still contains the node.) 129/10000 · 129
:988 :988

	English `hint` is a suggestion to where the element should be inserted. 63/10000 · 63
249 :991

	English Requires:;; `nh` is empty or `nh.get_allocator()` is equal to the container's allocator. Returns:;; If `nh` was empty returns `end()`. + + If there was already an element in the container with an equivalent key returns an iterator pointing to that. + + Otherwise returns an iterator pointing to the newly inserted element. 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. + + This can be used to insert a node extracted from a compatible `unordered_multiset`. 918/10000 · 918
:1006 :1006

	English --- 3/10000 · 3
251 :1008

	English Erase by Position 17/10000 · 17
252 :1010

	English ```c++ iterator erase(iterator position); iterator erase(const_iterator position); ``` 86/10000 · 86
:1015 :1015

	English Erase the element pointed to by `position`. 43/10000 · 43
254 :1018

	English Returns:;; The iterator following `position` before the erasure. Throws:;; Only throws an exception if it is thrown by `hasher` or `key_equal`. Notes:;; In older versions this could be inefficient because it had to search through several buckets to find the position of the returned iterator. The data structure has been changed so that this is no longer the case, and the alternative erase methods have been deprecated. 420/10000 · 420
:1022 :1022

	English --- 3/10000 · 3
256 :1024

	English Erase by Value 14/10000 · 14
257 :1025

	English ```c++ size_type erase(const key_type& k); template<class K> size_type erase(K&& k); ``` 88/10000 · 88
258 :1030

	English Erase all elements with key equivalent to `k`. 46/10000 · 46
259 :1033

	English Returns:;; The number of elements erased. Throws:;; Only throws an exception if it is thrown by `hasher` or `key_equal`. Notes:;; 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. 567/10000 · 567
:1037 :1037

	English --- 3/10000 · 3
261 :1039

	English Erase Range 11/10000 · 11
262 :1041

	English ```c++ iterator erase(const_iterator first, const_iterator last); ``` 69/10000 · 69
263 :1045

	English Erases the elements in the range from `first` to `last`. 56/10000 · 56
264 :1048

	English Returns:;; The iterator following the erased elements - i.e. `last`. Throws:;; Only throws an exception if it is thrown by `hasher` or `key_equal`. + + In this implementation, this overload doesn't call either function object's methods so it is no throw, but this might not be true in other implementations. 307/10000 · 307
:1053 :1053

	English --- 3/10000 · 3

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