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std::basic_ifstream::is_open

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< cpp‎ | io‎ | basic ifstream

 
 
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)
 
bool is_open() const;
Comprueba si el flujo de archivos tiene un archivo asociado .
Original:
Checks if the file stream has an associated file.
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Efectivamente llama rdbuf()->is_open() .
Original:
Effectively calls rdbuf()->is_open().
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Contenido

[editar] Parámetros

(Ninguno)
Original:
(none)
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[editar] Valor de retorno

true si la secuencia de archivo tiene un archivo asociado, false lo contrario
Original:
true if the file stream has an associated file, false otherwise
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[editar] Ejemplo

[editar] Ver también

abre un archivo y lo asocia con la corriente
Original:
opens a file and associates it with the stream
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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]