std::basic_string::shrink_to_fit

 

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void shrink_to_fit();		(seit C++11)

Fordert die Beseitigung von ungenutzten Kapazitäten .

Original:

Requests the removal of unused capacity.

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Es ist eine unverbindliche Anfrage an capacity um size reduzieren. Es hängt von der Implementierung, wenn die Anforderung erfüllt ist .

Original:

It is a non-binding request to reduce capacity to size. It depends on the implementation if the request is fulfilled.

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(None)

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(none)

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(None)

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(none)

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Constant

Original:

Constant

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Beispiel

#include <iostream>#include <string>int main(){std::string s;std::cout<<"Default-constructed capacity is "<< s.capacity()<<'\n'; s.resize(100);std::cout<<"Capacity of a 100-element string is "<< s.capacity()<<'\n'; s.clear();std::cout<<"Capacity after clear() is "<< s.capacity()<<'\n'; s.shrink_to_fit();std::cout<<"Capacity after shrink_to_fit() is "<< s.capacity()<<'\n';}

Output:

Default-constructed capacity is 0 Capacity of a 100-element string is 100 Capacity after clear() is 100 Capacity after shrink_to_fit() is 0

Siehe auch

size length	gibt die Anzahl Zeichen zurück (öffentliche Elementfunktion)
capacity	liefert die Anzahl der Zeichen, die in derzeit zugewiesenen Speicher gehalten werden kann Original: returns the number of characters that can be held in currently allocated storage The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (öffentliche Elementfunktion)