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    std::basic_streambuf::in_avail

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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_streambuf
    Öffentliche Member-Funktionen
    Original:
    Public member functions
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    basic_streambuf::~basic_streambuf
    Locales
    Original:
    Locales
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    basic_streambuf::pubimbue
    basic_streambuf::getloc
    Positionierung
    Original:
    Positioning
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    basic_streambuf::pubsetbuf
    basic_streambuf::pubseekoff
    basic_streambuf::pubseekpos
    basic_streambuf::pubsync
    Get area
    Original:
    Get area
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    basic_streambuf::in_avail
    basic_streambuf::snextc
    basic_streambuf::sbumpc
    basic_streambuf::sgetc
    basic_streambuf::sgetn
    Legen Bereich
    Original:
    Put area
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    basic_streambuf::sputc
    basic_streambuf::sputn
    Putback
    Original:
    Putback
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    basic_streambuf::sputbackc
    basic_streambuf::sungetc
    Geschützt Member-Funktionen
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    Protected member functions
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    basic_streambuf::basic_streambuf
    basic_streambuf::operator=(C++11)
    basic_streambuf::swap(C++11)
    Locales
    Original:
    Locales
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    basic_streambuf::imbue
    Positionierung
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    Positioning
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    basic_streambuf::setbuf
    basic_streambuf::seekoff
    basic_streambuf::seekpos
    basic_streambuf::sync
    Get area
    Original:
    Get area
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    basic_streambuf::showmanyc
    basic_streambuf::underflow
    basic_streambuf::uflow
    basic_streambuf::xsgetn
    basic_streambuf::eback
    basic_streambuf::gptr
    basic_streambuf::egptr
    basic_streambuf::gbump
    basic_streambuf::setg
    Legen Bereich
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    Put area
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    basic_streambuf::xsputn
    basic_streambuf::overflow
    basic_streambuf::pbase
    basic_streambuf::pptr
    basic_streambuf::epptr
    basic_streambuf::pbump
    basic_streambuf::setp
    Putback
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    Putback
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    basic_streambuf::pbackfail
     
    <tbody> </tbody>
    std::streamsize in_avail();
    Gibt die Anzahl der noch verfügbaren Zeichen in der get-Bereich. Wenn ein Lese-Position verfügbar ist, effektiv kehrt egptr() - gptr(), die Größe des get-Bereich. In diesem Fall ist die Anzahl der Bytes zurückgegeben die Anzahl von Bytes, die aus dem Puffer ohne Aufruf underflow() extrahiert werden kann .
    Original:
    Returns the number of characters available in the get area. If a read position is available, effectively returns egptr() - gptr(), the size of the get area. In this case, the number of bytes returned is the number of bytes that can be extracted from the buffer without calling underflow().
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    Wenn das Get-Bereich leer ist, ruft showmanyc() um die Anzahl der verfügbaren Bytes in dem zugehörigen Zeichensequenz zu bestimmen. In diesem Fall ist der Wert zurückgegeben die Anzahl von Bytes, die aus dem Puffer extrahiert werden kann, während es garantiert, dass underflow() nicht zurückkehren würde Traits::eof kann .
    Original:
    If the get area is empty, calls showmanyc() to determine the number of bytes available in the associated character sequence. In this case, the value returned is the number of bytes that can be extracted from the buffer while it's guaranteed that underflow() would not return Traits::eof.
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    Parameter

    (None)
    Original:
    (none)
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    Rückgabewert

    Die Anzahl der Zeichen in der get-Bereich oder in der zugehörigen Zeichenfolge oder -1 wenn keine Zeichen in der zugehörigen Sequenz sind .
    Original:
    The number of characters available in the get area or in the associated character sequence, or -1 if no characters are available in the associated sequence.
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    Beispiel

    This section is incomplete
    Reason: no example

    Siehe auch

    [virtuell]
    Optional bietet die Anzahl der noch verfügbaren Zeichen für die Eingabe aus der Datei
    Original:
    optionally provides the number of characters available for input from the file
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    (virtuellen geschützten Member-Funktion of std::basic_filebuf) [edit]
    extrahiert bereits verfügbaren Blöcke von Zeichen
    Original:
    extracts already available blocks of characters
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    (öffentliche Elementfunktion of std::basic_istream) [edit]