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std::basic_ostream::swap

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< cpp‎ | io‎ | basic ostream

 
 
Input / Output-Bibliothek
I / O-Manipulatoren
C-style I / O
Puffern
Original:
Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(veraltet)
Streams
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Streams
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Abstraktionen
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Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
Datei-I / O
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File I/O
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basic_ifstream
basic_ofstream
basic_fstream
String I / O
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String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Array I / O
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Array I/O
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istrstream(veraltet)
ostrstream(veraltet)
strstream(veraltet)
Types
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Types
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streamoff
streamsize
fpos
Fehler Kategorie Schnittstelle
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Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
std::basic_ostream
Globale Objekte
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Global objects
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Member-Funktionen
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Member functions
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basic_ostream::basic_ostream
basic_ostream::~basic_ostream
basic_ostream::operator=(C++11)
Formatierte Eingabe
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Formatted input
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basic_ostream::operator<<
Unformatierte Eingabe
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Unformatted input
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basic_ostream::put
basic_ostream::write
Positionierung
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Positioning
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basic_ostream::tellp
basic_ostream::seekp
Verschiedenes
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Miscellaneous
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basic_ostream::flush
basic_ostream::swap(C++11)
Mitglied Klassen
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Member classes
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basic_ostream::sentry
Non-Member-Funktionen
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Non-member functions
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operator<<(std::basic_ostream)
 
protected:
void swap(basic_ostream& rhs);
(seit C++11)
Ruft basic_ios::swap(rhs) alle Daten Mitglieder der Basisklasse tauschen, außer rdbuf() zwischen *this und rhs. Diese Swap-Funktion geschützt ist: Es wird von den Swap-Funktionen der Swap-Output-Stream-Klassen aufgerufen std::basic_ofstream und std::basic_ostringstream, die wissen, wie man richtig tauschen die zugehörige streambuffers .
Original:
Calls basic_ios::swap(rhs) to swap all data members of the base class, except for rdbuf(), between *this and rhs. This swap function is protected: it is called by the swap functions of the swappable output stream classes std::basic_ofstream and std::basic_ostringstream, which know how to correctly swap the associated streambuffers.
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[Bearbeiten] Parameter

rhs -
a basic_ostream des gleichen Typs mit zu tauschen
Original:
a basic_ostream of the same type to swap with
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[Bearbeiten] Beispiel

#include <sstream>
#include <iostream>
#include <utility>
int main()
{
    std::ostringstream s1("hello");
    std::ostringstream s2("bye");
 
    s1.swap(s2); // OK, ostringstream has a public swap()
    std::swap(s1, s2); // OK, calls s1.swap(s2)
 
//  std::cout.swap(s2); // ERROR: swap is a protected member
 
    std::cout << s1.str() << '\n';
}

Output:

hello