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std::unorde...mplace_hint(3) C++ Standard Libary std::unorde...mplace_hint(3) NAME std::unordered_set::emplace_hint - std::unordered_set::emplace_hint Synopsis template <class... Args> (since C++11) iterator emplace_hint( const_iterator hint, Args&&... args ); Inserts a new element to the container, using hint as a suggestion where the element should go. The element is constructed in-place, i.e. no copy or move operations are performed. The constructor of the element is called with exactly the same argu- ments as supplied to the function, forwarded with std::forward<Args>(args).... If rehashing occurs due to the insertion, all iterators are invali- dated. Otherwise iterators are not affected. References are not invalidated. Rehash- ing occurs only if the new number of elements is greater than max_load_fac- tor()*bucket_count(). Parameters hint - iterator, used as a suggestion as to where to insert the new element args - arguments to forward to the constructor of the element Return value Returns an iterator to the newly inserted element. If the insertion failed because the element already exists, returns an iterator to the already existing element with the equivalent key. Exceptions If an exception is thrown by any operation, this function has no ef- fect (strong exception guarantee). Complexity Amortized constant on average, worst case linear in the size of the container. Example This section is incomplete Reason: no example See also emplace constructs element in-place (C++11) (public member function) inserts elements insert or nodes (C++11) (since C++17) (public member function) http://cppreference.com 2022.07.31 std::unorde...mplace_hint(3)
NAME | Synopsis | Parameters | Return value | Exceptions | Complexity | Example | See also
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