std::basic_istream::operator=
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protected: basic_istream& operator=(const basic_istream& rhs )= delete; | (1) | |
protected: basic_istream& operator=( basic_istream&& rhs ); | (2) | (seit C++11) |
Der Zuweisungsoperator ist geschützt, und wird gelöscht. Input-Streams sind nicht CopyAssignable .
2) Original:
The copy assignment operator is protected, and is deleted. Input streams are not CopyAssignable.
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Die Bewegung Zuweisungsoperator tauscht die gcount ()-Werte und alle Daten Mitglieder der Basisklasse außer
rdbuf() mit rhs, als ob durch den Aufruf swap(*rhs). Dieser Schritt Zuweisungsoperator geschützt ist: es wird nur durch die Bewegung Zuweisungsoperatoren der abgeleiteten beweglichen Input-Stream-Klassen aufgerufen std::basic_ifstream und std::basic_istringstream, die wissen, wie man richtig zu bewegen zuweisen die damit verbundenen streambuffers .Original:
The move assignment operator exchanges the gcount() values and all data members of the base class, except for
rdbuf(), with rhs, as if by calling swap(*rhs). This move assignment operator is protected: it is only called by the move assignment operators of the derived movable input stream classes std::basic_ifstream and std::basic_istringstream, which know how to correctly move-assign the associated streambuffers.The text has been machine-translated via Google Translate.
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[Bearbeiten]Parameter
| rhs | - | Die basic_istream Objekt, aus dem zuweisen *this Original: the basic_istream object from which to assign to *this The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[Bearbeiten]Beispiel
#include <sstream>#include <iostream>int main(){std::istringstream s1; s1 =std::istringstream("test");// OK std::cin=std::istringstream("test");// ERROR: 'operator=' is protected}
