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    std::basic_fstream::open

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    < cpp‎ | io‎ | basic fstream

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    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
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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_fstream
    Member-Funktionen
    Original:
    Member functions
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    basic_fstream::basic_fstream
    basic_fstream::operator=(C++11)
    basic_fstream::swap(C++11)
    basic_fstream::rdbuf
    Datei-Operationen
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    File operations
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    basic_fstream::is_open
    basic_fstream::open
    basic_fstream::close
    Non-Member-Funktionen
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    Non-member functions
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    basic_fstream::swap(std::basic_fstream)(C++11)
     
    void open(constchar*filename,
               ios_base::openmode mode = ios_base::in|ios_base::out);
    void open(conststd::string&filename,                                  
               ios_base::openmode mode = ios_base::in|ios_base::out);
    		(seit C++11)
    Opens und assoziierten Datei mit dem Strom. Ruft clear() über Erfolg oder setstate(failbit) bei Ausfall .
    Original:
    Opens and associates file with the file stream. Calls clear() on success or setstate(failbit) on failure.
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    Die erste Version effektiv nennt rdbuf()->open(filename, mode).
    Original:
    The first version effectively calls rdbuf()->open(filename, mode).
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    Die zweite Version effektiv nennt open(filename.c_str(), mode) .
    Original:
    The second version effectively calls open(filename.c_str(), mode).
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    Inhaltsverzeichnis

    [Bearbeiten]Parameter

    filename -
    der Name der Datei, die geöffnet werden kann
    Original:
    the name of the file to be opened
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    mode -
    legt Stream offenen Modus. Es ist Bitmaske Typ sind die folgenden Konstanten definiert:
    Constant
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    Constant
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    		 Explanation
    app
    versuchen Ende Strom vor jedem Schreibvorgang
    Original:
    seek to the end of stream before each write
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    binary
    Öffnen Sie im Binär-Modus
    Original:
    open in binary mode
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    in
    zum Lesen öffnen
    Original:
    open for reading
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    out
    zum Schreiben geöffnet
    Original:
    open for writing
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    trunc
    Verwerfen der Inhalt des Stroms beim Öffnen
    Original:
    discard the contents of the stream when opening
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    ate
    versuchen Ende Stromes unmittelbar nach geöffnet
    Original:
    seek to the end of stream immediately after open
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    Original:
    specifies stream open mode. It is bitmask type, the following constants are defined:
    Constant
    Original:
    Constant
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    		 Explanation
    app
    versuchen Ende Strom vor jedem Schreibvorgang
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    seek to the end of stream before each write
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    binary
    Öffnen Sie im Binär-Modus
    Original:
    open in binary mode
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    in
    zum Lesen öffnen
    Original:
    open for reading
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    out
    zum Schreiben geöffnet
    Original:
    open for writing
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    trunc
    Verwerfen der Inhalt des Stroms beim Öffnen
    Original:
    discard the contents of the stream when opening
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    ate
    versuchen Ende Stromes unmittelbar nach geöffnet
    Original:
    seek to the end of stream immediately after open
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    The text has been machine-translated via Google Translate.
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    [Bearbeiten]Rückgabewert

    (None)
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    (none)
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    [Bearbeiten]Beispiel

    This section is incomplete
    Reason: no example

    [Bearbeiten]Siehe auch

    prüft, ob der Stream eine zugehörige Datei hat
    Original:
    checks if the stream has an associated file
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    (öffentliche Elementfunktion)[edit]
    schließt die zugehörige Datei
    Original:
    closes the associated file
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    (öffentliche Elementfunktion)[edit]
    Von „https://de.cppreference.com/mwiki/index.php?title=cpp/io/basic_fstream/open&oldid=26758“
    close