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std::ftell

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< cpp‎ | io‎ | c

 
 
Entrada / salida de la biblioteca
I / O manipuladores
C-estilo I / O
Buffers
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Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(obsoleto)
Arroyos
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Streams
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Abstracciones
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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
Cadena de I / O
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String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Matriz I / O
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Array I/O
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istrstream(obsoleto)
ostrstream(obsoleto)
strstream(obsoleto)
Tipos
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Types
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streamoff
streamsize
fpos
Error interfaz categoría
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Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
C-estilo I / O
Funciones
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Functions
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Acceso a archivos
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File access
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Directo de entrada / salida
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Direct input/output
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fread
fwrite
Entrada sin formato / salida
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Unformatted input/output
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Formato de entrada / salida
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Formatted input/output
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Presentar posicionamiento
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File positioning
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ftell
fgetpos
fseek
fsetpos
rewind
Gestión de errores
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Error handling
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clearerr
feof
ferror
perror
Las operaciones en los archivos
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Operations on files
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remove
rename
tmpfile
tmpnam
 
Defined in header <cstdio>
long ftell( std::FILE* stream );
Devuelve el valor actual del indicador de posición del fichero para el flujo de archivos stream .
Original:
Returns the current value of the file position indicator for the file stream stream.
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Si la corriente está abierto en modo binario, el valor obtenido por esta función es el número de bytes desde el comienzo del archivo .
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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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Si la corriente es abierto en modo de texto, el valor devuelto por esta función no está especificado y sólo tiene sentido como la entrada a std::fseek
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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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Contenido

[editar] Parámetros

stream -
archivo continuo a examinar
Original:
file stream to examine
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[editar] Valor de retorno

Archivo indicador de posición en caso de éxito o -1L si falla. También establece errno en caso de fallo .
Original:
File position indicator on success or -1L if failure occurs. Also sets errno on failure.
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[editar] Ejemplo

[editar] Ver también

obtiene el indicador de posición del archivo
Original:
gets the file position indicator
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(función) [edit]
desplaza el indicador de posición de archivo a una ubicación específica en un archivo
Original:
moves the file position indicator to a specific location in a file
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(función) [edit]
desplaza el indicador de posición de archivo a una ubicación específica en un archivo
Original:
moves the file position indicator to a specific location in a file
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(función) [edit]
C documentation for ftell