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    std::basic_stringbuf::str

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    <metanoindex/>

     
    C++
     
    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
    Original:
    Streams
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    Abstraktionen
    Original:
    Abstractions
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    ios_base
    basic_ios
    basic_istream
    basic_ostream
    basic_iostream
    Datei-I / O
    Original:
    File I/O
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    basic_ifstream
    basic_ofstream
    basic_fstream
    String I / O
    Original:
    String I/O
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    basic_istringstream
    basic_ostringstream
    basic_stringstream
    Array I / O
    Original:
    Array I/O
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    istrstream(veraltet)
    ostrstream(veraltet)
    strstream(veraltet)
    Types
    Original:
    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_stringbuf
    Öffentliche Member-Funktionen
    Original:
    Public member functions
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    basic_stringbuf::basic_stringbuf
    basic_stringbuf::operator=(C++11)
    basic_stringbuf::swap(C++11)
    basic_stringbuf::str
    Geschützt Member-Funktionen
    Original:
    Protected member functions
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    basic_stringbuf::underflow
    basic_stringbuf::pbackfail
    basic_stringbuf::overflow
    basic_stringbuf::setbuf
    basic_stringbuf::seekoff
    basic_stringbuf::seekpos
    Non-Member-Funktionen
    Original:
    Non-member functions
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    swap(std::basic_stringbuf)(C++11)
     
    <tbody> </tbody>
    std::basic_string<CharT, Traits, Allocator> str() const;
    		 (1)
    void str( const std::basic_string<CharT, Traits, Allocator>& s);
    		 (2)
    Ruft den zugrunde liegenden String .
    Original:
    Gets and sets the underlying string.
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    1)
    Erstellt und gibt einen std::basic_string Objekt mit einer Kopie dieses std::basic_stringbuf zugrunde liegenden Zeichenfolge. Für die Eingabe nur Bäche, enthält die zurückgegebene Zeichenfolge die Zeichen aus dem Bereich [eback(), egptr()). Für Eingang / Ausgang oder Ausgang nur Bäche, enthält die Zeichen aus pbase() bis zum letzten Zeichen in der Reihenfolge unabhängig von egptr() und epptr() .
    Original:
    Creates and returns a std::basic_string object containing a copy of this std::basic_stringbuf's underlying character sequence. For input-only streams, the returned string contains the characters from the range [eback(), egptr()). For input/output or output-only streams, contains the characters from pbase() to the last character in the sequence regardless of egptr() and epptr().
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    2)
    Löscht die gesamte zugrunde liegende Zeichenfolge dieses std::basic_stringbuf und konfiguriert dann einen neuen zugrunde liegenden Zeichenfolge, die eine Kopie des Inhalts s. Die Zeiger std::basic_streambuf wie folgt initialisiert:
    Original:
    Deletes the entire underlying character sequence of this std::basic_stringbuf and then configures a new underlying character sequence containing a copy of the contents of s. The pointers of std::basic_streambuf are initialized as follows:
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    Für Input-Streams (mode & ios_base::in == true), eback() Punkten auf dem ersten Zeichen, gptr() == eback() und egptr() == eback() + s.size(): die anschließende Eingabe wird das erste Zeichen s kopiert erfahren .
    Original:
    For input streams (mode & ios_base::in == true), eback() points at the first character, gptr() == eback(), and egptr() == eback() + s.size(): the subsequent input will read the first character copied from s.
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    Für Ausgangsströme (mode & ios_base::out == true), pbase() Punkten auf dem ersten Zeichen und epptr() >= pbase() + s.size() (epptr darf weiter so hinweisen, dass die folgende sputc() nicht sofort anrufen overflow())
    Original:
    For output streams (mode & ios_base::out == true), pbase() points at the first character and epptr() >= pbase() + s.size() (epptr is allowed to point farther so that the following sputc() wouldn't immediately call overflow())
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    Für append Streams (mode & ios_base::ate == true), pptr() == pbase() + s.size(), so dass die nachfolgende Ausgabe wird bis zum letzten Zeichen von s (seit C++11) kopiert angehängt werden
    Original:
    For append streams (mode & ios_base::ate == true), pptr() == pbase() + s.size(), so that subsequent output will be appended to the last character copied from s (seit C++11)
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    Für no-Anhängen Output-Streams, pptr() == pbase(), so dass die nachfolgende Ausgabe die Zeichen aus s kopiert überschreiben .
    Original:
    For no-appending output streams, pptr() == pbase(), so that subsequent output will overwrite the characters copied from s.
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    Parameter

    s -
    ein String-Objekt hält den Ersatz Zeichenfolge
    Original:
    a string object holding the replacement character sequence
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    Rückgabewert

    1)
    Ein String-Objekt mit einer Kopie dieses Puffers zugrunde liegenden Zeichenfolge .
    Original:
    A string object holding a copy of this buffer's underlying character sequence.
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    2)
    (None)
    Original:
    (none)
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    Notes

    Diese Funktion wird in der Regel durch std::basic_stringstream::str() abgerufen .
    Original:
    This function is typically accessed through std::basic_stringstream::str().
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    Beispiel

    #include <sstream>
#include <iostream>
int main()
{
    int n;

    std::istringstream in;  // could also use in("1 2")
    in.rdbuf()->str("1 2"); // set the get area
    in >> n;
    std::cout << "after reading the first int from \"1 2\", the int is " 
              << n << ", str() = \"" << in.rdbuf()->str() << "\"\n"; // or in.str()

    std::ostringstream out("1 2");
    out << 3;
    std::cout << "after writing the int '3' to output stream \"1 2\""
              << ", str() = \"" << out.str() << "\"\n";

    std::ostringstream ate("1 2", std::ios_base::ate); // C++11
    ate << 3;
    std::cout << "after writing the int '3' to append stream \"1 2\""
              << ", str() = \"" << ate.str() << "\"\n";
}

    Output: 

    after reading the first int from "1 2", the int is 1, str() = "1 2"
after writing the int '3' to output stream "1 2", str() = "3 2"
after writing the int '3' to append stream "1 2", str() = "1 23"

    Siehe auch
    Ruft den Inhalt der zugrunde liegenden String-Gerät Objekt
    Original:
    gets or sets the contents of underlying string device object
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    (öffentliche Elementfunktion of std::basic_stringstream) [edit]