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    std::fseek

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    <metanoindex/>

     
    C++
     
    Input / Output-Bibliothek
    I / O-Manipulatoren
    C-style I / O
    Puffern
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    Buffers
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    basic_streambuf
    basic_filebuf
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    strstreambuf(veraltet)
    Streams
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    Streams
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    Abstraktionen
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    Abstractions
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    ios_base
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    Datei-I / O
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    File I/O
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    Array I / O
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    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)
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    Funktionen
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    Functions
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    Dateizugriff
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    File access
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    Direkte Eingabe / Ausgabe
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    Direct input/output
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    fread
    fwrite
    Unformatierte Eingang / Ausgang
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    Unformatted input/output
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    Formatierte Eingabe / Ausgabe
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    Formatted input/output
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    Datei Positionierung
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    File positioning
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    ftell
    fgetpos
    fseek
    fsetpos
    rewind
    Fehlerbehandlung
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    Error handling
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    clearerr
    feof
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    Operationen auf Dateien
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    Operations on files
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    remove
    rename
    tmpfile
    tmpnam
     
    <tbody> </tbody>
    definiert in Header <cstdio>
    int fseek( std::FILE* stream, long offset, int origin );
    Stellt die Position in der Datei Indikator für die Datei-Stream stream wie folgt:
    Original:
    Sets the file position indicator for the file stream stream as follows:
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    Wenn die stream offen ist im binären Modus, ist die neue Position genau offset Bytes vom Beginn der Datei gemessene origin ist SEEK_SET, aus der aktuellen Position in der Datei, wenn origin SEEK_CUR, und von dem Ende der Datei, wenn origin ist SEEK_END wird. Einige binäre Datenströme unterstützt möglicherweise nicht die SEEK_END .
    Original:
    If the stream is open in binary mode, the new position is exactly offset bytes measured from the beginning of the file is origin is SEEK_SET, from the current file position if origin is SEEK_CUR, and from the end of the file if origin is SEEK_END. Some binary streams may not support the SEEK_END.
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    Wenn die stream ist offen im Text-Modus, sind die einzigen unterstützten Werte für offset Null (das funktioniert mit jedem origin) und ein Wert, der von einem früheren Aufruf std::ftell auf einen Strom mit der gleichen Akte (die nur mit origin der SEEK_SET assoziiert .
    Original:
    If the stream is open in text mode, the only supported values for offset are zero (which works with any origin) and a value returned by an earlier call to std::ftell on a stream associated with the same file (which only works with origin of SEEK_SET.
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    Zusätzlich zur Änderung der Datei Stellungsanzeige, rückgängig gemacht fseek die Auswirkungen der std::ungetc und löscht die end-of-file-Status, falls zutreffend .
    Original:
    In addition to changing the file position indicator, fseek undoes the effects of std::ungetc and clears the end-of-file status, if applicable.
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    Wenn ein Lese-oder Schreibzugriff Fehler auftritt, den Fehler für den Stream ( std::ferror) gesetzt ist, und die Datei Position unbeeinflusst .
    Original:
    If a read or write error occurs, the error indicator for the stream (std::ferror) is set and the file position is unaffected.
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    Parameter

    stream -
    Datei-Stream zu ändern
    Original:
    file stream to modify
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    offset -
    Anzahl der Zeichen, die Position relativ zum Ursprung zu verschieben
    Original:
    number of characters to shift the position relative to origin
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    origin -
    an welche Position offset zugegeben. Es kann eine der folgenden Werte haben: SEEK_SET, SEEK_CUR, SEEK_END
    Original:
    position to which offset is added. It can have one of the following values: SEEK_SET, SEEK_CUR, SEEK_END
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    Rückgabewert

    0 auf Erfolg, Wert ungleich Null sonst .
    Original:
    0 upon success, nonzero value otherwise.
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    Beispiel

    This section is incomplete
    Reason: no example

    Siehe auch
    verschiebt die Datei Positionsanzeiger zu einer bestimmten Position in einer Datei
    Original:
    moves the file position indicator to a specific location in a file
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    (Funktion) [edit]
    erhält die Datei Stellungsanzeige
    Original:
    gets the file position indicator
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    (Funktion) [edit]
    liefert die aktuelle Position in der Datei-Anzeige
    Original:
    returns the current file position indicator
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    (Funktion) [edit]
    verschiebt die Datei Stellungsanzeige zum Anfang in einer Datei
    Original:
    moves the file position indicator to the beginning in a file
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    (Funktion) [edit]
    C documentation for fseek