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std::basic_ifstream::open

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C++
 
Entrada / salida de la biblioteca
I / O manipuladores
C-estilo I / O
Buffers
Original:
Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(obsoleto)
Arroyos
Original:
Streams
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Abstracciones
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
Cadena de I / O
Original:
String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Matriz I / O
Original:
Array I/O
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istrstream(obsoleto)
ostrstream(obsoleto)
strstream(obsoleto)
Tipos
Original:
Types
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streamoff
streamsize
fpos
Error interfaz categoría
Original:
Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
std::basic_ifstream
Las funciones miembro
Original:
Member functions
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basic_ifstream::basic_ifstream
basic_ifstream::operator=(C++11)
basic_ifstream::swap(C++11)
basic_ifstream::rdbuf
Las operaciones de archivo
Original:
File operations
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basic_ifstream::is_open
basic_ifstream::open
basic_ifstream::close
Terceros funciones
Original:
Non-member functions
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basic_ifstream::swap(std::basic_ifstream)(C++11)
 
void open( const char *filename,
           ios_base::openmode mode = ios_base::in );
void open( const std::string &filename,                                  
           ios_base::openmode mode = ios_base::in );
 (ya que C + +11)
Abre el archivo y asociados con la secuencia de archivo. Llamadas clear() en el éxito o en el fracaso setstate(failbit) .
Original:
Opens and associates file with the file stream. Calls clear() on success or setstate(failbit) on failure.
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La primera versión eficazmente llama rdbuf()->open(filename, mode | ios_base::in).
Original:
The first version effectively calls rdbuf()->open(filename, mode | ios_base::in).
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La segunda versión eficazmente llama open(filename.c_str(), mode) .
Original:
The second version effectively calls open(filename.c_str(), mode).
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Contenido

[editar] Parámetros

filename -
el nombre del archivo que se abrirá
Original:
the name of the file to be opened
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mode -
especifica el modo de transmisión abierta. Es el tipo de máscara de bits, las siguientes constantes son definidas:
Constant
Original:
Constant
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 Explanation
app
buscan al final del flujo antes de cada escritura
Original:
seek to the end of stream before each write
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binary
abrir en modo binario
Original:
open in binary mode
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in
abierto para la lectura
Original:
open for reading
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out
abrir para escritura
Original:
open for writing
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trunc
descartar el contenido de la corriente cuando se abre
Original:
discard the contents of the stream when opening
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ate
buscar al extremo de corriente inmediatamente después de abierto
Original:
seek to the end of stream immediately after open
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Original:
specifies stream open mode. It is bitmask type, the following constants are defined:
Constant
Original:
Constant
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 Explanation
app
buscan al final del flujo antes de cada escritura
Original:
seek to the end of stream before each write
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binary
abrir en modo binario
Original:
open in binary mode
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in
abierto para la lectura
Original:
open for reading
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out
abrir para escritura
Original:
open for writing
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trunc
descartar el contenido de la corriente cuando se abre
Original:
discard the contents of the stream when opening
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ate
buscar al extremo de corriente inmediatamente después de abierto
Original:
seek to the end of stream immediately after open
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[editar] Valor de retorno

(Ninguno)
Original:
(none)
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[editar] Ejemplo

This section is incomplete
Reason: no example

[editar] Ver también
Comprueba si el flujo tiene un archivo asociado
Original:
checks if the stream has an associated file
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(miembro público función) [edit]
cierra el archivo asociado
Original:
closes the associated file
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(miembro público función) [edit]
Obtenido de «http://es.cppreference.com/mwiki/index.php?title=cpp/io/basic_ifstream/open&oldid=23272»