std::unordered_map::reserve
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| void reserve( size_type count ); |
(seit C++11) | |
Legt die Anzahl der Schaufeln an der Zahl, mussten mindestens
count Elemente ohne Überschreitung der maximalen Auslastung und rehashs der Behälter unterzubringen, stellt also die Elemente in die entsprechenden Eimer bedenkt, dass Gesamtzahl der Eimer hat sich geändert. Effektiv nennt rehash(std::ceil(count / max_load_factor())) .Original:
Sets the number of buckets to the number needed to accomodate at least
count elements without exceeding maximum load factor and rehashes the container, i.e. puts the elements into appropriate buckets considering that total number of buckets has changed. Effectively calls rehash(std::ceil(count / max_load_factor())).The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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Inhaltsverzeichnis |
[Bearbeiten] Parameter
| count | - | neue Kapazität des Behälters
Original: new capacity of the container The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[Bearbeiten] Rückgabewert
(None)
Original:
(none)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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[Bearbeiten] Komplexität
durchschnittlichen Fall linear in der Größe des Behälters, schlimmsten Fall quadratische .
Original:
average case linear in the size of the container, worst case quadratic.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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[Bearbeiten] Siehe auch
| reserves at least the specified number of buckets. This regenerates the hash table. (öffentliche Elementfunktion) | |
