Varianti

    std::basic_ostream::seekp

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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
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    Abstractions
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    ios_base
    basic_ios
    basic_istream
    basic_ostream
    basic_iostream
    File 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(deprecato)
    ostrstream(deprecato)
    strstream(deprecato)
    Tipi
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    Types
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    streamoff
    streamsize
    fpos
    Errore categoria interfaccia
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    Error category interface
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    iostream_category(C++11)
    io_errc(C++11)
     
    std::basic_ostream
    Gli oggetti globali
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    Membri funzioni
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    Member functions
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    basic_ostream::basic_ostream
    basic_ostream::~basic_ostream
    basic_ostream::operator=(C++11)
    Ingresso formattato
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    Formatted input
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    basic_ostream::operator<<
    Ingresso non formattato
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    Unformatted input
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    basic_ostream::put
    basic_ostream::write
    Posizionamento
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    Positioning
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    basic_ostream::tellp
    basic_ostream::seekp
    Varie
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    Miscellaneous
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    basic_ostream::flush
    basic_ostream::swap(C++11)
    Membri classi
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    Member classes
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    basic_ostream::sentry
    Non membri funzioni
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    Non-member functions
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    operator<<(std::basic_ostream)
     
    <tbody> </tbody>
    basic_ostream& seekp( pos_type pos );
    		 (1)
    basic_ostream& seekp( off_type off, std::ios_base::seekdir dir);
    		 (2)
    Consente di impostare l'indicatore di posizione di uscita della corrente dell'oggetto streambuf associato.
    Original:
    Sets the output position indicator of the current associated streambuf object.
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    In primo luogo, costruisce un oggetto sentry che controlla il flusso di errori e colori la cravatta () 'd flussi di output. (dal C++11) Successivamente,
    Original:
    First, constructs a sentry object which checks the stream for errors and flushes the tie()'d output streams. (dal C++11) Afterwards,
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    1)

    imposta l'indicatore di posizione di uscita pos valore assoluto (relativo all'inizio del file) chiamando rdbuf()->pubseekoff(pos, std::ios_base::out). Se la (pos_type)-1 chiamata restituisce, esegue setstate(failbit).
    Original:
    sets the output position indicator to absolute (relative to the beginning of the file) value pos by calling rdbuf()->pubseekoff(pos, std::ios_base::out). If the call returns (pos_type)-1, executes setstate(failbit).
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    2)

    imposta l'indicatore di posizione di uscita per compensare off rispetto al dir chiamando rdbuf()->pubseekoff(off, dir, std::ios_base::out). Non segnalare errori.
    Original:
    sets the output position indicator to offset off relative to dir by calling rdbuf()->pubseekoff(off, dir, std::ios_base::out). Does not report errors.
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    Parametri

    pos -
    posizione assoluta per impostare l'indicatore di posizione di uscita .
    Original:
    absolute position to set the output position indicator to.
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    off -
    posizione relativa per impostare l'indicatore di posizione di uscita .
    Original:
    relative position to set the output position indicator to.
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    dir -
    definisce la posizione di base per applicare l'offset rispetto. Essa può essere una delle seguenti costanti:
    Constant
    Original:
    Constant
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    		 Explanation
    beg
    l'inizio di un flusso
    Original:
    the beginning of a stream
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    end
    la fine di un corso d'acqua
    Original:
    the ending of a stream
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    cur
    la posizione corrente del flusso di indicatore di posizione
    Original:
    the current position of stream position indicator
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    Original:
    defines base position to apply the relative offset to. It can be one of the following constants:
    Constant
    Original:
    Constant
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    		 Explanation
    beg
    l'inizio di un flusso
    Original:
    the beginning of a stream
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    end
    la fine di un corso d'acqua
    Original:
    the ending of a stream
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    cur
    la posizione corrente del flusso di indicatore di posizione
    Original:
    the current position of stream position indicator
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    The text has been machine-translated via Google Translate.
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    Valore di ritorno

    *this

    Eccezioni

    1)

    Può gettare std::ios_base::failure in caso di guasto, se exceptions() & failbit != 0.
    Original:
    May throw std::ios_base::failure in case of failure, if exceptions() & failbit != 0.
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    2)

    Non buttare a meno rdbuf()->pubseekoff() getta
    Original:
    Does not throw unless rdbuf()->pubseekoff() throws
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    Esempio

    #include <sstream>
#include <iostream>

int main()
{
    std::ostringstream os("hello, world");
    os.seekp(7);
    os << 'W';
    os.seekp(0, std::ios_base::end);
    os << '!';
    os.seekp(0);
    os << 'H';
    std::cout << os.str() << '\n';
}

    Output: 

    Hello, World!

    Vedi anche
    restituisce l'indicatore di posizione di uscita
    Original:
    returns the output position indicator
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    (metodo pubblico) [modifica]
    restituisce l'indicatore di posizione di ingresso
    Original:
    returns the input position indicator
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    (metodo pubblico) [modifica]
    		sets the input position indicator
    (metodo pubblico) [modifica]
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