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    std::streamoff

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    <metanoindex/>

     
    C++
     
    Ingresso / libreria di output
    I / O manipolatori
    C-style I / O
    Buffer
    Original:
    Buffers
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    basic_streambuf
    basic_filebuf
    basic_stringbuf
    strstreambuf(deprecato)
    Streams
    Original:
    Streams
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    Astrazioni
    Original:
    Abstractions
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    ios_base
    basic_ios
    basic_istream
    basic_ostream
    basic_iostream
    File 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(deprecato)
    ostrstream(deprecato)
    strstream(deprecato)
    Tipi
    Original:
    Types
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    streamoff
    streamsize
    fpos
    Errore categoria interfaccia
    Original:
    Error category interface
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    iostream_category(C++11)
    io_errc(C++11)
     
    <tbody> </tbody>
    Elemento definito nell'header <ios>
    typedef /*unspecified*/ streamoff;
    Il std::streamoff tipo è un tipo integrale con segno di dimensioni sufficienti per rappresentare la dimensione massima possibile supportata dal sistema operativo. In genere, questo è un typedef per long long.
    Original:
    The type std::streamoff is a signed integral type of sufficient size to represent the maximum possible file size supported by the operating system. Typically, this is a typedef to long long.
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    E 'usato per rappresentare offset da posizioni di flusso (valori di std::fpos tipo). Un valore di std::streamoff -1 è anche usato per rappresentare le condizioni di errore da alcune delle funzioni I / O di libreria.
    Original:
    It is used to represent offsets from stream positions (values of type std::fpos). A std::streamoff value of -1 is also used to represent error conditions by some of the I/O library functions.
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    Rapporti con std :: fpos

    • la differenza tra due oggetti std::fpos è un valore di tipo std::streamoff
      Original:
      the difference between two std::fpos objects is a value of type std::streamoff
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    • un valore di std::streamoff tipo può essere aggiunto o sottratto da std::fpos ottenendo un std::fpos diverso.
      Original:
      a value of type std::streamoff may be added or subtracted from std::fpos yielding a different std::fpos.
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    • un valore di std::fpos tipo è convertibile in modo implicito std::streamoff (i risultati della conversione in offset dall'inizio del file.
      Original:
      a value of type std::fpos is implicitly convertible to std::streamoff (the conversion results in the offset from the beginning of the file.
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    • un valore di std::fpos tipo è costruibile a partire da un valore di tipo std::streamoff
      Original:
      a value of type std::fpos is constructible from a value of type std::streamoff
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    Vedi anche
    rappresenta la posizione assoluta in un ruscello o di un file
    Original:
    represents absolute position in a stream or a file
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    (classe template)
    		sets the input position indicator
    (metodo pubblico) [modifica]
    imposta l'indicatore di posizione di uscita
    Original:
    sets the output position indicator
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    (metodo pubblico) [modifica]