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std::ftell

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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
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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(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)
 
C-style I / O
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
ferror
perror
Operationen auf Dateien
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Operations on files
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remove
rename
tmpfile
tmpnam
 
Defined in header <cstdio>
long ftell( std::FILE* stream );
Gibt den aktuellen Wert der Datei Stellungsanzeige für den Datei-Stream stream .
Original:
Returns the current value of the file position indicator for the file stream stream.
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Wenn der Stream im Binär-Modus geöffnet, wird der Wert von dieser Funktion erhalten die Anzahl der Bytes vom Beginn der Datei .
Original:
If the stream is open in binary mode, the value obtained by this function is the number of bytes from the beginning of the file.
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Wenn der Stream offen im Text-Modus, ist der Wert von dieser Funktion zurückgegeben nicht spezifiziert und ist nur sinnvoll als Eingabe für std::fseek
Original:
If the stream is open in text mode, the value returned by this function is unspecified and is only meaningful as the input to std::fseek
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Inhaltsverzeichnis

[Bearbeiten] Parameter

stream -
Datei-Stream zu prüfen
Original:
file stream to examine
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[Bearbeiten] Rückgabewert

Datei Stellungsanzeige über Erfolg oder -1L, wenn Fehler auftritt. Auch setzt errno bei Ausfall .
Original:
File position indicator on success or -1L if failure occurs. Also sets errno on failure.
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[Bearbeiten] Beispiel

[Bearbeiten] Siehe auch

erhält die Datei Stellungsanzeige
Original:
gets the file position indicator
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(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]
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]
C documentation for ftell