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std::basic_filebuf::seekpos

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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
basic_stringbuf
strstreambuf(veraltet)
Streams
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Streams
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Abstraktionen
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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
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Array I/O
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istrstream(veraltet)
ostrstream(veraltet)
strstream(veraltet)
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)
io_errc(C++11)
 
std::basic_filebuf
Öffentliche Member-Funktionen
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Public member functions
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basic_filebuf::basic_filebuf
basic_filebuf::~basic_filebuf
basic_filebuf::operator=(C++11)
basic_filebuf::swap(C++11)
basic_filebuf::is_open
basic_filebuf::open
basic_filebuf::close
Geschützt Member-Funktionen
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Protected member functions
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basic_filebuf::showmanyc
basic_filebuf::underflow
basic_filebuf::uflow
basic_filebuf::pbackfail
basic_filebuf::overflow
basic_filebuf::setbuf
basic_filebuf::seekoff
basic_filebuf::seekpos
basic_filebuf::sync
basic_filebuf::imbue
Non-Member-Funktionen
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Non-member functions
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swap(std::basic_filebuf)(C++11)
 
protected:

virtual pos_type seekpos( pos_type sp,

                          std::ios_base::openmode which = std::ios_base::in | std::ios_base::out );
Positioniert den Dateizeiger, wenn möglich, die Position, die durch sp .
Original:
Repositions the file pointer, if possible, to the position indicated by sp.
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Wenn die zugehörige Datei nicht geöffnet ist (is_open()==false), sofort fehlschlägt .
Original:
If the associated file is not open (is_open()==false), fails immediately.
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Wenn die Datei zum Schreiben geöffnet, schreibt erste der Put-Bereich und keine unshift Sequenzen durch die derzeit durchdrungen locale Bedarf mit overflow()
Original:
If the file is open for writing, first writes the put area and any unshift sequences required by the currently imbued locale, using overflow()
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Dann positioniert den Dateizeiger, wie durch den Aufruf std::fseek
Original:
Then repositions the file pointer, as by calling std::fseek
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Wenn die Datei zum Lesen geöffnet, die Updates zu erhalten Bereich, wenn notwendig .
Original:
If the file is open for reading, updates the get area if necessary.
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Wenn sp wurde nicht durch Berufung seekoff() oder seekpos() auf der gleichen Datei erhalten, ist das Verhalten undefiniert .
Original:
If sp was not obtained by calling seekoff() or seekpos() on the same file, the behavior is undefined.
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Inhaltsverzeichnis

[Bearbeiten] Parameter

sp -
Position in der Datei erhalten durch seekoff() oder seekpos() als früher auf die gleiche Datei
Original:
file position obtained by seekoff() or seekpos() called earlier on the same file
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which -
Legt fest, welche der Ein-und / oder Ausgabe-Sequenzen zu beeinflussen. Es kann eine oder eine Kombination der folgenden Konstanten:
Constant
Original:
Constant
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 Explanation
in
beeinflussen die Eingabesequenz
Original:
affect the input sequence
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out
beeinflussen die Ausgangssequenz
Original:
affect the output sequence
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Original:
defines which of the input and/or output sequences to affect. It can be one or a combination of the following constants:
Constant
Original:
Constant
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 Explanation
in
beeinflussen die Eingabesequenz
Original:
affect the input sequence
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out
beeinflussen die Ausgangssequenz
Original:
affect the output sequence
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[Bearbeiten] Rückgabewert

sp über Erfolg oder pos_type(off_type(-1)) bei Ausfall .
Original:
sp on success or pos_type(off_type(-1)) on failure.
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[Bearbeiten] Notes

seekpos() durch std::basic_streambuf::pubseekpos, die von den single-Argument Versionen std::basic_istream::seekg und std::basic_ostream::seekp verlangt wird
Original:
seekpos() is called by std::basic_streambuf::pubseekpos, which is called by the single-argument versions of std::basic_istream::seekg and std::basic_ostream::seekp
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[Bearbeiten] Beispiel

This section is incomplete
Reason: no example

[Bearbeiten] Siehe auch
Beruft seekpos()
Original:
invokes seekpos()
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(öffentliche Elementfunktion of std::basic_streambuf) [edit]
[virtuell]
positioniert die Position in der Datei, mit relativen Adressierung
Original:
repositions the file position, using relative addressing
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(virtuellen geschützten Member-Funktion) [edit]
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]
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