std::unordered_map::emplace_hint
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template<class... Args> iterator emplace_hint( const_iterator hint, Args&&... args); | (seit C++11) | |
Fügt ein neues Element in den Behälter mit
hint als Anregung, wo das Element gehen sollte. Das Element in-place ist so aufgebaut, dh kein Kopieren oder Verschieben von Operationen durchgeführt werden. The constructor of the element type (value_type, that is, std::pair<const Key, T>) is called with exactly the same arguments as supplied to the function, forwarded with std::forward<Args>(args)....Original:
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 type (value_type, that is, std::pair<const Key, T>) is called with exactly the same arguments as supplied to the function, forwarded with std::forward<Args>(args)....The text has been machine-translated via Google Translate.
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If rehashing occurs due to the insertion, all iterators are invalidated. Otherwise iterators are not affected. References are not invalidated. Rehashing occurs only if the new number of elements is higher than max_load_factor()*bucket_count().
Inhaltsverzeichnis |
[Bearbeiten]Parameter
| hint | - | Iterator, als Anregung, wo das neue Element eingefügt werden Original: iterator, used as a suggestion as to where to insert the new element The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| args | - | Argumente, die an den Konstruktor des Elements weiterzuleiten Original: arguments to forward to the constructor of the element The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[Bearbeiten]Rückgabewert
Gibt einen Iterator auf das neu eingefügte Element .
Original:
Returns an iterator to the newly inserted element.
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If the insertion failed because the element already exists, returns an iterator to the already existing element with the equivalent key.
[Bearbeiten]Komplexität
Amortized constant on average, worst case linear in the size of the container.
[Bearbeiten]Siehe auch
| constructs element in-place (öffentliche Elementfunktion) | |
Elemente einfügen Original: inserts elements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (öffentliche Elementfunktion) | |
