From Cppreference
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template <class... Args>
iterator emplace_hint( const_iterator hint, Args&&... args );
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(C++11 feature)
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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 arguments, as supplied to the function.
[edit] Parameters
hint
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-
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iterator, used as a suggestion as to where to insert the new element
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args
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-
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arguments to forward to the constructor of the element
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[edit] Return value
returns an iterator to the inserted element.
[edit] Complexity
[edit] See also
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constructs element in-place (public member function)
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inserts elements (public member function)
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