Varianti

    fseek

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    <metanoindex/>

     
    C
     
    File input/output
    Funzioni
    Original:
    Functions
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    Accesso ai file
    Original:
    File access
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    Diretta input / output
    Original:
    Direct input/output
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    fread
    fwrite
    Ingresso formattato / uscita
    Original:
    Unformatted input/output
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    Formattato di input / output
    Original:
    Formatted input/output
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    File di posizionamento
    Original:
    File positioning
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    ftell
    fgetpos
    fseek
    fsetpos
    rewind
    La gestione degli errori
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    Error handling
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    clearerr
    feof
    ferror
    perror
    Le operazioni sui file
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    Operations on files
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    remove
    rename
    tmpfile
    tmpnam
     
    <tbody> </tbody>
    Elemento definito nell'header <stdio.h>
    int fseek( FILE *stream, long offset, int origin );
    Consente di impostare l'indicatore di posizione del file per il flusso di file stream al valore puntato da offset. Questa funzione può essere utilizzata per impostare l'indicatore oltre la fine del file effettivo, tuttavia, i valori di posizione negativi non sono accettate.
    Original:
    Sets the file position indicator for the file stream stream to the value pointed to by offset. This function can be used to set the indicator beyond the actual end of the file, however, negative position values are not accepted.
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    Parametri

    stream -
    stream file da modificare
    Original:
    file stream to modify
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    offset -
    numero di caratteri da spostare la posizione relativa di origine
    Original:
    number of characters to shift the position relative to origin
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    origin -
    posizione in cui viene aggiunto offset. Può avere uno dei seguenti valori: 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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    Valore di ritorno

    0 caso di successo, valore diverso da zero in caso contrario. Bandiera EOF associato viene eliminato per il flusso e l'effetto di ogni ungetc viene annullata.
    Original:
    0 upon success, nonzero value otherwise. Associated EOF flag is cleared for the stream and the effect of any ungetc is undone.
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    Note

    Per i flussi di testo, gli unici valori validi sono offset 0 (applicabile a qualsiasi origin) e un valore restituito da una precedente chiamata a ftell (solo per SEEK_SET).
    Original:
    For text streams, the only valid values of offset are 0 (applicable to any origin) and a value returned by an earlier call to ftell (only applicable to SEEK_SET).
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    Vedi anche
    si sposta l'indicatore di posizione file in una posizione specifica in un file
    Original:
    moves the file position indicator to a specific location in a file
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    (funzione) [modifica]
    ottiene l'indicatore di posizione del file
    Original:
    gets the file position indicator
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    (funzione) [modifica]
    restituisce l'attuale indicatore di posizione del file
    Original:
    returns the current file position indicator
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    (funzione) [modifica]
    sposta l'indicatore di posizione file all'inizio in un file
    Original:
    moves the file position indicator to the beginning in a file
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    (funzione) [modifica]
    C++ documentation for fseek